The Golden Era of Japanese Radio
-Prevailing of Super Heterodyne-

 - 1951-55 -

 From 1951, The numbers of Japanese broadcasting stations increased by starting of commercial broadcasting.
Listeners need more selectivity and sensitivity to their radio sets.
From 1953, TRF receiver was withdrawn from the statistics of Japanese radio industry.
The most of new radios put on the market became super-heterodyne radio.
The production of radio and the numbers of listeners increased by a revival of business.

In 01/02/1953, TV broadcasting started in Japan by NHK.
However, TV set was very expensive. When TV broadcasting started, TV sets existed only 866 in Japan.
Radio was a main stream of home entertainment and information source.
The early 1950’s was the golden era of Japanese radio.

 The standards of radio and broadcasting changed in 1950.
The band of standard broadcasting was extended from 550-1500kc to 535-1605kc.
And intermediate frequency was changed from 463kc to 455kc.
The recent frequency (463kc) interfered with marine band.

The big four companies Matsushita, Hayakawa (Sharp), Toshiba and Yaou (General) hold a large share of Japanese market.
Matsushita and Hayakawa continued manufacturing radio set from pre war.
Toshiba was biggest tube and light bulb manufacturer.
Yaou was new comer from 1940’s. They grew up to big company.
Victor and Columbia which were ancient companies of phonograph continued manufacturing radio and audio set. Matsushita acquired Victor of Japan Co., in 1954.
Yamanaka, Mitaka, Nanao etc the old manufacturers from pre war kept their business.
New comer ware Osaka Onkyo and Sanyo Electric.

The line up of products was different from big company and small manufacturer.
The big company had an abundant assortment of various radio set (small personal radio to hi-end radio phonograph).
The small company had a few variety of radio set.
The power of sets as commercial goods had a difference between big company and small company.
The design of cabinet contained old fashioned and modern style.

From 1951, Japanese companies were affiliated with foreign companies to introduce new technology.

HOME


INDEX  INDEX

.
NOTICE:
Gothic is latest updates.
When not mentioned specially, all set are Super Heterodyne, all prices are original retail price.
Japanese terms or company names that is untranslatable are shown in Italics.

"National" Products by Matsushita Electric Industrial Co., Ltd.

  AS-450 3 Band 6 Tubes All Wave          1951-53  JPY 26,000 (NEW)
  AS-400 3 Band 5 Tubes All Wave           1951-52  JPY 17,900 
  AS-300 2 Band 5 Tubes All Wave           1951-52  JPY 13,800  (5 Tubes 2 Band All Wave)
  US-200 "Minkan Housou-gata No.2"         1951    JPY 9,950   (5 Tubes)
  HS-600 "Shin Minkan Housou-gata"        1951-52  JPY 7,900   (5 Tubes Magnetic Speaker)
  NS-100 "1952 Model 5 tubes Super"        1951-52  JPY 12,800  (5 Tubes)
  PS-52   "Personal Super"               1952    JPY 13,900  (5 Tubes)
  PS-71  "Personal Super"               1953    JPY 14,000  (5 Tubes using Rim Lock Tube"
  PS-54                             1953    JPY 11,950  (5 Tubes using GT tube ,Transformer-less)  
  HS-1000 "Komkumin Super"              1953    JPY 9,850   (5 Tubes)
  NS-200 "Standard Super"               1953    JPY 14,800  (5 Tubes using GT Tubes, Auto-transformer)
  DX-330                           1953    JPY 13,500     (5 Tubes)
  QA-700                            1953    JPY 19,800    (5 Tubes 2 Band All Wave)
  5X-568                            1954    Price: unknown  (5 Tubes) (NEW)
  BX-235 7 Tubes "Magna Super"           1954    Price: unknown  (6 Tubes with Magic Eye and RF Amp.) 
  BX-270 6 Tubes "Magic Super"           1954    JPY 14,900     (5 Tubes with Magic Eye) 
  BX-250 6 Tubes "Snap Super"           1954-55   JPY 19,800    (5 Tubes with Magic Eye andPush Switch) 
  DX-350 5 Tubes ,Plastic Cabinet          1954-55   JPY 12,500 (5 Tubes with Plastic Cabinet, Winner of Industrial Design Contest)
  DX-370                           1954-55   JPY 8,500   (5 Tubes with Plastic Cabinet)
  AX-530 "Snail All Wave"                1955     JPY 21,500    

"Sharp" products by Hayakawa Electric Industry Co., Ltd.

  5R-51            5 Tubes            1951?
  AL-5             2 Band 5 Tubes       1951?    JPY 8,150(Wholesale)
  AL-10            2 Band 5 Tubes       1952?  
  AR-310           5 Tubes with Magic Eye  1952-53  JPY 16,500 
  AR-330           5 Tubes with Magic Eye   1953    JPY 15,900 
  5R-800 "Houshi-gata" 5 Tubes             1952-53  JPY 9,850 
  5R-820           5 Tubes             1953    JPY 9,980
  SR-280M          5 Tubes             1952-53  JPY14,250 
  RS-355           6 Tubes with Magic Eye    1954-55  JPY 19,800 

"Matsuda"products by Tokyo Shibaura Electric Co., Ltd.

  Matsuda Radio 513A       5 Tubes  1951-53 JPY 8,900 (Wholesale)
  Matsuda Radio 614A       5 Tubes with Magic Eye  1953-54 JPY 15,500
  Matsuda Radio 6SC-19     5 Tubes with Magic Eye  1955?

"General" prodcts by Yaou Radio MFG. Co., Ltd.

  6S-5   5 Tubes with Magic Eye    1951-52  JPY 9,650 (Wholesale)
  6S-B1  5 Tubes with Push Switch  1953-54  JPY 18,800 
  6S-12  5 Tubes with Magic Eye    1954 

 "Sanyo" products by Sanyo Electric Co. Ltd.

  SS-52A               5 Tubes (Plastic Cabinet)         1952   JPY 8,950 
  SS-48                5 Tubes                     1952  JPY 12,500
  SS-56 "Conny Super "     5 Tubes (Transformer-less)        1954-55 JPY 6,300 

"Victor" products by Victor Company of Japan

  7AW-33              3 Band 6Tubes with Magic Eye          1953 JPY 32,000 

"Columbia" products by Nippon Columbia Co. Ltd.

  R-522 (Prototype ?)      5 Tubes using GT tube (Transformer-less)   1952-53       
  R-524               5 Tubes                          1953    JPY 15,000 

"Onkyo" products by Osaka Onkyo Co., Ltd.

  OS-55               5 Tubes with Magic Eye       1953-54 (First Product of Onkyo Radio) 

"TEN" products by Kobe Kogyo Corp.

  TEN 5G-60             5 Tubes using GT tube       1953 
  TEN S-502 SUPER STAR   5 Tubes                 1953?
  TEN 5S-500            5 Tubes                1954 

"Diatone" products by Mitsubishi Electric Co.,Ltd.

  SB-12               5 Tubes              1954 JPY 14,700 

"Hitachi" products by Hitachi Ltd.,

  H-101               5 Tubes              1955-57   JPY 15,700

"Nanaora" Products by Nanao Radio Co., Ltd.

  "DX super" 7S-18       6 Tubes with Magic Eye      1953 
  NR5S-3              5 Tubes                1953 JPY 14,500 

"Pearl" products by Nippon Radio Ind. Co., Ltd.(JRC)

  NR-54              5 Tubes               1951?
  BR-12B             5 Tubes with Push Switch   1953 
  Lamp Radio SR-1       5 Tubes               1953 

Other Manufacturer's products
  
  Yusei                   5 Tubes             Yusei Kosaikai               1953? (NEW)
  Onken Model OS220         5 Tubese with Magic Eye   Musen Suki Sangyo Co., Ltd      1954?  
  Topic Model TRF-601        5 Tubes              Topic Radio Laboratory         1952-53 JPY 10,500 (Wholesale JPY 7,300) 
  Rain Bow Model No.D-200      5 Tubes             Rain Bow Denpa Kogyo Seisakusho 1952 
  Alpha Mmodel 6B-32         5 Tubes with Magic Eye   Nippon Alpha Electric Co., Ltd     1954 
  Kyosei Model unknown        5 Tubes              Kyosei Musen              1954?  
  Clarion Model 5S4          5 Tubes with Mu Tuning   Teikoku Dempa Co., Ltd.        1952  JPY 10,200 (Wholesale)
  Kowa Model A             5 Tubes with Magic Eye    Mituwa Tusin Kogyo Co., Ltd.     1953 
  Televian 6S-502           5 Tubes with Magic Eye    Yamanaka Electric Co., Ltd.      1953 JPY 17,800 
  TOKO SUPER Model unknown   5 Tubes with Magic Eye    Toko Electric Co., Ltd.         1954?  
  Normal Model 6S-M1         5 Tubese with Magic Eye   Yoshida Electric Co., Ltd.       1954 
  Pigeon Model 6S-2          5 Tubes with Magic Eye    Sogo Denki Co., Ltd.          1953 JPY 16,000 
  Pigeon Model TS-53A        5 Tubes              Sogo Denki Co., Ltd.          1953 JPY 12,500
  Melodyne Model MS-6L?     5 Tubes using mT Tube    Toyo Sangyo Radio Works      1953
  Waltz Model unknown         5 Tubes with Magic Eye    Tokyo Musen Denki K.K.        1955 

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"National" Products by Matsushita Electric Industrial Co., Ltd..


AS-450   1951-53 JPY 26,000 (27,600 from 1953)

  

TUBES: 6D6-6WC5-6D6-6ZDH3A-42-80-6E5, 6.5" Electro-ynamic Speaker (National Model 6F-51R) ,BC, SW1:2.7-7.5Mc, SW2: 7.5-22Mc

 One of hi-end models of Matsushita radio at early 1950’s.
Chassis was painted. This finish was different from lower model.
Many accessories (Magic eye, tone control, input for pick up and AC socket for player) equipped.
Peaking coil was used to improve sensitivity of SW band.

(Collection No.11884)

INDEX


AS-400   1951-52 JPY 17,900 (18,800 from 10/1951)

  

 

TUBES: 6WC5-6D6-6ZDH3A-42-80BK, Permanent Dynamic Speaker (6.5"), 3 Band All Wave

 European styled 3 band all wave super heterodyne.
The design was felt the influence of Philips that was associated with Matsushita in 1951.
The finish and construction of cabinet was not good.
This cabinet is fear condition.

(Collection No.11740)

INDEX


AS-300    1951 JPY 13,800

  

TUBES: 6WC5-6D6-6ZDH3A-42-80BK, Permanent Dynamic Speaker (6.5", National PD-65A), 2 Band All Wave

Low cost 2 band all wave set. Short wave band was 6-18Mc.
In 10/1951, The size of cabinet was extended, and speaker was changed from permanent type to electro-dynamic type.
Price was changed into JPY 15,200. Model name was changed into AS-300F.
In1952, Price was changed into JPY 16,300.

(Collection No.11156)

INDEX


US-200 "Minkan Housou-gata No.2"  1951 JPY 9,950

  

 

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F, Permanent Dynamic Speaker (6.5")

 Low cost super heterodyne receiver.
This was a typical model of Japanese home radio.
The name “Minkan Housou gata” means “for Commercial Broadcasting”.

(Collection No.11322)

INDEX


HS-600 "Shin Minkan Housou-gata"  1952 JPY 7,900

  

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F, Magnetic Speaker (8")

 This is Matsushita’s cheapest set of 1952 model.
The simple construction and magnetic speaker was similar to TRF receiver.
Circuit was standard super heterodyne. Specifications were enough to use around the country except tone quality.
The speaker baffle board was made suitable for 6.5” dynamic speaker.
Permanent dynamic speaker equipped as option.
The price was expensive against cheap design.
This set did not succeed in business. Then this model was withdraw from 1953 catalogue.

(Collection No.11501)

INDEX


NS-100 "1952 Model 5 tubes Super" 1951-52 JPY 12,800

  

TUBES: 6WC5 6D6 6Z-DH3A 6Z-P1 12F, Permanent Dynamic Speaker (National Model 6P-51R, 6.5")

 At late 1951, Matsushita released this model as 1952 new model.
New feature was modernized symmetrical design.
Matsushita called clear plastic dial “Ring Light Dial”.
This model was changed into model NS-200 in 1953.

(Collection No..11850)

INDEX


PS-52   "Personal Super"  1951-52 JPY 13,900

  

TUBES: 6BE6-6BD6-6AT6-6AR5-6X4, Permanent Dynamic Speaker (5")

 Matsushita’s early small set with mT tubes. This model was revised model of PS-51.
PS-51 used first plastic cabinet. New model PS-52 used painted wooden cabinet.
The first plastic cabinet occurred some trouble and expensive. Revised model returned into wooden cabinet. Early Japanese mT tube was very expensive. The price of this model was similar to high-grade set.

(Collection No.11732)

INDEX


PS-71  "Personal Super"  1953 JPY 14,000 

  

  Rim Lock Tubes made by Philips

TUBES: UCH-42 - UF-41 - UBC-41 - UL-41 - UY-4, Permanent Dynamic Speaker (5"), Semi-Transformer-less (Auto Transformer)

 This is one of the Matsushita’s “Personal Super” series.
The circuit design of this set was peculiarity to Japanese radio set.
Technology was introduced from Philips which affiliated in Matsushita.
Tubes were “rim lock” types manufactured and imported from Philips.
Enclosure was Japanese original designed wooden cabinet.
Price was more expensive than ordinary large set.
Rim lock tube did not manufactured in Japan.
At last this set ended in unsuccessful in business, but made an contribution to improved Matsushita’s technology.
Replacement parts did not supply enough.
Most of this set was modified into miniature tubes.
This example that keeps original condition is rare.

(Collection No.11040)

INDEX


PS-54   1953 JPY 11,950 

  

TUBES: 12SA7-12SK7-12SQ7-35L6-35Z5, Permanent Dynamic Speaker (5"), Semi-Transformer-less (Auto Transformer)

 This is one of the Matsushita’s “Personal Super” series.
Price was more expensive than ordinary large set.
Tubes were Matsushita made GT tubes. Name of tube was equal to U.S. standard tube.
However details was not equal to original tube.
Heaters were series connected, However small auto transformer used to protect some trouble by poor voltage stability on the grid.
Cabinet made by Phenol resin based plastic and design was imitation of American set.
Chassis was hybrid of European technology introduced from Philips and American tubes.

Bar antenna was broken.

(Collection No.11260)

INDEX


HS-1000 "Kokumin Super" 1953 JPY 9,850

  

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F, Permanent Dynamic Speaker (National Model 6P-55, 6.5")

松下の、1万円を切るもっとも低価格の5 Tubes Super Heterodyne 。普及型として「国民 Super Heterodyne 」と称して発売した。
6WC5-6D6-6ZDH3A-6ZP1-12F で6.5インチのパーマネント・ダイナミック(ナショナル6P-55)を駆動するごく平凡なセットである。
比較的小型にまとめられ、量産を考慮した合理的な設計で低価格を実現している。

(Collection No.11323)

INDEX


NS-200 "Stansdard Super"        1953 JPY 14,800

 

TUBES: 6WC5-6D6-6ZDH3A-42-80BK, Permanent Dynamic Speaker (6.5")

 This is Matsushita’s middle class set.
Design of front panel imaged TV screen (from advertisement).
This modern design seems Japanese orginal.

(Collection No.11146)

INDEX


DX-330   1953 JPY 13,500

  

TUBES: 12SA7-12SK7-12SQ7-35L6-35Z5, Permanent Dynamic Speaker (5"), with Auto Transformer

 単巻きトランスを持つ、トランスレス用GT管を使用した小型5 Tubes Super Heterodyne 。ループアンテナを採用。
プラスチックキャビネットだが、まだ軟質プラスチックではない。電源事情が悪いためか完全なトランスレスに踏み切れないでいる。
トランスを持つため重く、硬質プラスチックの性質上割れやすいという欠点を持つ。
工業デザイン賞に入選した機種だが、デザインのモチーフが英国QUAD社のチューナであることは明らかである。
ただし、この横に長く、背の低いデザインはその後のデザインの主流となる。
GT管を使用したセットはmT管の量産化に伴って作られなくなり、短命に終わった。

本機は、ループアンテナを焼損したらしく、普通のアンテナコイルに交換されている。

(Collection No.11227)

INDEX


QA-700        1953 JPY 19,800

  

 

TUBES: 6WC5-6D6-6ZDH3A-42-80BK-6E5, Permanent Dynamic Speaker (8"), 2 Band All Wave

 This is Matsushita’s high-class 2 band all wave set.
Design of dial seems 5 band all wave.
However frequency scales were only 2 from left.
Other scale was indicated the name of stations.

(Collection No.11051)

INDEX


5X-568 1954 Price: unknown 

  

TUBES: 6WC5-6D6-6ZDH3A-42-80BK, 6.5" Permanent Dynamic Speaker (National Model P-6504)

 Typical 5 tube superheterodyne set. The shape of front panel was new design in 1954.
This set was one of last generations using ST shaped tube set.

Cabinet was fear condition.

(Collection No.11914)

INDEX


BX-235 "Magna Super"  1954 Price: unknown

  

  

 TUBES: 6D6-6WC5-6D6-6ZDH3A-42-80BK-6E5, Permanent Dynamic Speaker (8")

 高周波増幅を備え高感度と高音質を追求したセットで、DX、LOCALの切替スイッチを持つが、短波は無く、中波専用である。
トーン・コントロール、ピックアップ端子を備え、自社製8インチ・パーマネント・ダイナミック(8P-32S)を採用している。
このような高級受信機は、民放開局後、地方の富裕層が都会の民放を聞く需要が増えたため、各社から発売された。
オーディオ機器の要素もあり、その後のハイファイラジオにつながる製品である。

(Collection No.11047) Donated from ex Fukuyama Radio Museum Collection

INDEX


BX-270 6 Tubes Magic Super Heterodyne   1954 JPY 14,900 

  

  

TUBES: 6WC5-6D6-6ZDH3A-42-80BK-6E5, Permanent Dynamic Speaker (6.5")

 中波5 Tubes Super Heterodyne としては中級のモデル。プラスチックと南米産ゼブラ材をを大胆に使ったパネルデザインに特徴がある。
このように操作ツマミが縦に並ぶデザインはMT管時代のハイファイラジオでは一般的になるが、この時代としては斬新である。
操作部がシャーシ外にあるためシャーシが薄型になっているが、ダイヤル機構や操作部の構造は複雑で、デザイン優先で設計されたことがわかる。
松下は同年DX-350型が毎日新聞工業デザイン賞特選を受賞しており、工業デザインの重要性に早くから気づいていたメーカーである。
この頃から従来保守的だったデザインが個性的になっていく。

本機は中央のツマミの飾り金具が失われている。

(Collection No.11451)

INDEX


BX-250 "Snap Super"  1954-55 JPY 19,800 

  

TUBES: 6WC5-6D6-6ZDH3A-42-80BK-6E5, Permanent Dynamic Speaker (National Model 6P-71R, 6.5"), Push Button Selector

 プッシュボタン選局を備えたマジックアイ付5 Tubes Super Heterodyne 。
プッシュボタンは5局セットでき、基本的に販売店で各地域の局をプリセットして販売された。
ボタンの窓には写真のようにAからEの文字が印刷されているが、プリセット後に、地域別のコールサインを印刷したシートを挿入した。
下から2番目の”MANU”ボタンを押すと、通常の選局ツマミによる同調ができた。
この年の同社のラインナップの中では、中波専用5 Tubes Super Heterodyne としてはもっとも高価なモデルだった。

Knob (center) was missing. Cabinet is fear condition. Rear cover was missing.

(Collection No.11784)

INDEX


DX-350 5 Tubes Super Heterodyne   1954-55 JPY 12,500 

  

 

TUBES: 6BE6-6BD6-6AT6-6AR5-6X4, Permanent Dynamic Speaker (National Model 5P-51C, 5"), with Transformer

 This is small super heterodyne set using Phenol resin based plastic cabinet.
This model awarded in 2 nd Japan Industrial Design Contest in 1953 designed by Mr. Zen-ichi Mano who worked in Matsushita.
Design was inspired from Japanese historical architecture.
Front panel constructed by straight lines.
This set was one of the mile-stones of Japanese industrial design.
The cost of plastic cabinet and miniature tube was expensive.
Price was higher than ordinary wooden cabinet.
This set did not succeed in business, then withdrew from 1956 catalogue.

(Collection No.11676, 11693)

INDEX


DX-370   1954-55 JPY 8,500 

 

TUBES: 6BE6-6BD6-6AT6-6AR5-6X4, Permanent Dynamic Speaker (National Model 5P-51C, 5"), with Auto-transformer

This was low coat super heterodyne set using auto-transformer.
Design was unique and simple.

Appeared on The Denpa Kagaku (Radio Technic & Science) 07/1954 published by Nippon Housou Shuppan Kyokai

(Collection No.11129)

INDEX


AX-530/D "Snail All Wave"  1955-56 JPY 21,500

  

TUBES: 6WC5-6D6-6ZDH3A-42-80BK-6E5, Permanent Dynamic Speaker (National Model 8P-32, 8"), 2 Band All Wave, with Band Spread

 松下の全波受信機。6WC5-6D6-6ZDH3A-42-80BK の構成で、自社製8P-32型、8インチ・パーマネント・ダイナミック・スピーカを駆動する。
左のダイヤルは Band スプレッドとなっている。キャビネットの仕上げも良く、高級なセットである。
この機種は、当初短波の Band を、海外放送用の6-18Mcで発売されたが、1956年に日本短波放送対応のため Band を4-12Mcに変更したAX-530D型(DはDomesticの意か)にマイナーチェンジされた(写真はAX-530D型)。

(Collection No.11226)

INDEX


"Sharp" products by Hayakawa Electric Co., Ltd.


5R-51   1951?

   

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F, Permanent Dynamic Speaker,

 中波帯が535-1605kcに変更された直後のものと思われる5 Tubes Super Heterodyne 。
6WC5-6D6-6ZDH3A-6ZP1-12F という普及型の構成である。
1948年に発売された小型5 Tubes Super Heterodyne 5R型の後継機種である。

(Collection No.11454)

INDEX


AL-5   1951?  JPY 8,150 (Wholesale)

  

 

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F, Permanent Dynamic Speaker (Sharp Model PD-67S, 6.5"), 2 Band All Wave

This is low cost 2 band all wave set.
Cabinet was conservative design.
Speaker and tubes were common with other low cost set.
This model was changed into Model AL-10 in a short time.

(Collection No.11700)

INDEX


AL-10   1952?

  

 

TUBES: 6WC5-6D6-6ZDH3A-42-80HK, Permanent Dynamic Speaker (Sharp Model PD-67S, 6.5"), 2 Band All Wave

 AL-5型をマイナーチェンジしたAll Wave Super Heterodyne 。ダイヤル部がプラスチックを使った新しいデザインに変更された。
シャーシのレイアウトが変更され、出力管と整流管が-6ZP1-12Fから42-80HKに変更されたため、音声出力が拡大された。

(Collection No.11343)

INDEX


AR-310   1952-53 JPY 16,500

  

  

TUBES: 6WC5-6D6-6ZDH3A-42-80HK-6E5, Permanent Dynamic Speaker (Sharp Model PM-60, 7"),

 This is hi-end B.C. only model of 1952 Sharp catalogue.
Call signs of NHK (upper area) and early commercial stations (lower area) were indicated on the dial.

Conservative and well-balanced design was well received.
Imitations made by small manufacturers were produced.
One of the examples was Normal Model 6S-M1.

One of the knobs was missing. It is possibility that knob is unoriginal.

Appeared on The Denpa Kagaku (Radio Technic & Science) 08/1953 published by Nippon Housou Shuppan Kyokai

(Collection No.11655)

INDEX


AR-330    1953    JPY 15,900 

  

 

 TUBES: 6WC5-6D6-6ZDH3A-42-80HK-6E5, Permanent Dynamic Speaker (Sharp Model PM-70, 7"),

 1953年後半に発売された、同社の中波 Super Heterodyne の中ではもっとも高級なモデル。
大型のダイヤル目盛には、開局直後の民放のコールが記入されている。
デザインが共通の卓上電蓄GR-530型も存在した。

本機はツマミが2個失われている。

掲載誌:電波科学1953.10

(Collection No.11655)

INDEX


5R-800 "Houshi-gata"  1952-53 JPY 9,850

  

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F, Permanent Dynamic Speaker (Sharp Model PD-67S, 6.5")

 Low cost Super Heterodyne set. The name "houshi" means "bargain".
This mode was changed into Model 5R-820 in 1953.

(Collection No.11345)

INDEX


5R-820   1953 JPY 9,980

  

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F, Permanent Dynamic Speaker (Sharp Model PD-67S, 6.5")

low cost Super Heterodyne set. This was new model in 1953. Design was modernized from old model 5R-800.

(Collection No.11431)

INDEX


SR-280M   1952-53 JPY 14,250

  

 

TUBES: 6WC5-6D6-6ZDH3A-42-80HK/BK, Permanent Dynamic Speaker (Sharp Model PM-60, 7"),

 シャープの比較的高級な5 Tubes Super Heterodyne 。
丸型のユニークなパネルは、戦前の英国Ecko社のラジオをモチーフにしたもののように見える。
プラスチック成形の技術が進歩し、自由なデザインに生かされるようになった一例である。

(Collection No.11364)

INDEX


Sharp RS-355  1954-55 JPY 19,800

  

TUBES: 6D6-6WC5-6D6-6ZDH3A-42-80-6E5, Permanent Dynamic Speaker (8"),

高周波増幅を備えて遠距離受信が可能なだけでなく、大型スピーカや音質調整、PU端子を備えている点で電蓄の要素を備えている。
キャビネットのデザインは、1950年のアメリカ、フィルコ社の海外向け高級受信機トロピック3104型に範をとったもの。
ダイヤルのデザインはAll Wave 風だが、中波のみである。
価格も普通の5 Tubes Super Heterodyne が1万円を切った頃にJPY 19,800と安いAll Wave より高い値が付けられていた。

 (Collection No.11157)

INDEX


"Matsuda"products by Tokyo Shibaura Electric Co., Ltd.


Matsuda Radio 513A   1951-53  JPY 8,900 (Wholesale)

   

 

TUBES: 6WC5-6D6-6ZDH3A-42-12F, Permanent Dynamic Speaker

This is early model of Toshiba’s 1950’s radio set.
The badge on the front panel was made by cloisonne ware.
To realize low cost, construction and circuit was simplified.
The quality became inferiority.

(Collection No.11234)

INDEX


Matsuda Radio 614A   1953-54 JPY 15,500

  

TUBES: 6WC5-6D6-6ZDH3A-42-80HK-6E5, Permanent Dynamic Speaker

このような丸型ダイヤルと丸みを持ったキャビネットはこの時期流行したらしく、各社から出されている。
この時代の東芝製品は極端な部品点数の削減を図っていて、信頼性は低い。
また、シャーシを共通化したためにキャビネットのデザインが違うだけの製品が並ぶ商品構成になってしまっている。
同社はこの後高度成長期に経営危機を招くことになるが、この時代の製品にもその問題点が潜んでいるように思われる。

(Collection No.11498)

INDEX


Matsuda Radio 6SC-19    1955?

 

TUBES: 6WC5-6D6-6ZDH3A-42-80-6E5, Permanent Dynamic Speaker

 This set was unique designed super heterodyne set.
The design of front panel was Japanese classic textile named “himawari (sunflower)”.

(Collection No.11547)

INDEX


"General" prodcts by Yaou Radio MFG.Co., Ltd.


6S-5   1951-52 JPY 9,650 (Wholesale)

   

TUBES: 6WC5-6D6-6ZDH3A-42-80BK-6E5, Permanent Dynamic Speaker (General Model PD-6502 D)

 Yaou Radio had a market in the country area.
This is one of Yaou’s best seller models.
Design was simple and conservative.

(Collection No.11192) Donated from ex Fukuyama Radio Museum Collection

INDEX


6S-B1   1953-54 JPY 18,800

  

TUBES: 6WC5-6D6-6ZDH3A-42-80BK-6E5, Permanent Dynamic Speaker (General Model PD-650), with Push Button selector

当時ラジオの3大メーカーの一つになっていたゼネラルのプッシュボタン式5 Tubes Super Heterodyne 。
中波専用だが、民法の開局に合わせて選局しやすくするためプリセット式のボタンを設けてある。
ダイヤルエスカッションの意匠は、アメリカ・ゼニス社の大型ポータブル、トランスオーシャニックのデザインを流用したもの。
オリジナルはAll Wave である。

  
                    Owner's Manual 

(Collection No.11741)

INDEX


6S-12   1953-54

  

TUBES: 6WC5-6D6-6ZDH3A-42-80BK-6E5, Permanent Dynamic Speaker (General Model PD-650),

 Yaou Radio became one of the big three radio manufacturers in early 1950’s.
The design of dial escutcheon was in the shape of TV screen.
TV broadcasting started in 1953 in Japan.
However, TV set was too expensive to ordinary people.
This design realized people’s small dream.

  
                  Owner's Manual

(Collection No.11252)

INDEX


"Sanyo" products by Sanyo Electric Co. Ltd.


SS-52A   1952 JPY 8,950

  

  

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F, Permanent Dynamic Speaker

This is first radio set of Sanyo Electric Co.,
Plastic cabinet was introduced to realize a low cost set.
Design of cabinet was imitation of Zenith Model G-510.
The technology of plastic molding was very difficult to Japanese industries.
The rear cover was made by steel to protect bending cabinet by heating tubes.
Sanyo made an endeavor to realize a plastic cabinet.
Original model SS-52 was troubled in the cabinet.
SS-52 was changed into SS-52A immediately after selling.
Low price was realized. SS-52A became cheapest super heterodyne set.
Color variation (red and green) existed.

(Collection No.11728)

INDEX


SS-48 5 Tubes Super Heterodyne  1952 JPY 12,500

 

TUBES: 6WC5-6D6-6ZDH3A-42-80BK, Permanent Dynamic Speaker

This is early model of Sanyo Electric Co.,
The first model SS-52A was low cost model.
This was middle class model using wooden cabinet.

(Collection No.11127)

INDEX


SS-56 "Conny Super"   1954-55 JPY 6,300

 

TUBES: 12BE6-12BD6-12AV6-35C5-35W4, Permanent Dynamic Speaker (5")

This was extremely low priced set in 1954.
Circuit was standard transformer less super heterodyne using miniature tubes.
The technology of plastic molding was progressed and cost was reduced.
Functions were very simple, tuning and volume control only.
But it’s enough to small home use radio.
Color variation existed.

(Collection No.11159)

INDEX


"Victor" products by Victor Company of Japan


7AW-33   1953 JPY 32,000

  

TUBES: 6D6-6SA7-6D6-6SQ7-42-80-6E5, Electro-dynamic Speaker, 3 band

 電蓄を除けばビクターの最高級受信機。中波のほかに6-10Mc,11.5-20Mcの短波を受信できる。
標準短波帯6-18Mcを2つに分けて少し広い Band とした「 Band スプレッド」式にして、操作性を改善している。
6D6-6SA7-6D6-6SQ7-42-80-6E5 という、高一付 Super Heterodyne で、重要な部分に当時量産され始めたGT管を採用している。
バリエーションとしてデザインがほぼ共通で2 Band の7AW-23型(JPY 29,000)があった。
All Wave の物品税率が高かったこともあって、標準的な5 Tubes Super Heterodyne の2倍程度という高額商品だった。

(Collection No.11767)

INDEX


"Columbia" products by Nippon Columbia Co. Ltd.


R-522 (Prototype ?)  1952-53

  

TUBES: 12SA7-12SK7-12SQ7-35L6-35Z5, Permanent Dynamic Speaker (Columbia model DS-51), Transformer-less

 日本では珍しいGT管を使ったトランスレス5 Tubes Super Heterodyne 。
感電を防止するためか、同社製品には通常あるはずのピックアップ端子がない。
このセットのキャビネットは同社の民間放送型 Super Heterodyne R-522型とまったく同じものだが、この機種は通常のトランス式ST管 Super Heterodyne である。
5インチの小型スピーカが使われているが、本来の7インチスピーカを取り付けるボルトが残っている。
この時代のコロムビアのラジオは、底板に張られた回路図にしか型番やシリアルナンバーの表示がなく、失われているものも多いが、このセットにはまったく表示された形跡がない。かわりにキャビネット後部と裏蓋に「No.4」の文字がペイントで記入されている。
トランスレス Super Heterodyne のテストのために作られた試作品の可能性もある。
本来のR-522型は、「民間放送型」の廉価版といいながらJPY 14,000という価格で、松下が1万円程度の「民間放送型」 Super Heterodyne を販売していたのに対して高価格だった。

本機は、出力管が失われている。

(Collection No.11046)

INDEX


R-524 5 Tubes Super Heterodyne  1953 JPY 15,000 

 

TUBES: 6WC5-6D6-6ZDH3A-42-80HK, Permanent Dynamic Speaker (Columbia model DS-79)

 This is Columbia’s standard super heterodyne set.

Output tube replaced from 42 to 6ZP1.

(Collection No.11131)

INDEX


"Onkyo" products by Osaka Onkyo Co., Ltd.


OS-55   1953-54

   

TUBES: 6WC5-6D6-6ZDH3A-42-80-6E5, Permanent Dynamic Speaker (Onkyo PD-180)

 Osaka Onkyo established as speaker manufacturer.
This model is their first radio set.
This set installed their hi-fi “Non Press Cone” speaker unit model PD-180 (8”).
Their strong point was “tone quality”.
Their hi-fi radio sold as low end audio equipment.
Later Onkyo grew up as audio equipment manufacturer

(Collection No.11637-2)

INDEX


"TEN" products by Kobe Kogyo Corp.


5G-60    1953

  

  

TUBES: 6SA7-6SK7-6SQ7-6V6-6X5, Permanent Dynamic Speaker (6.5")

  Kobe Kogyo was the company reorganized from Kawanishi Kikai Seisakusho Ltd.
This set used early Japanese GT tubes.
In Japan ST tubes used for a long time until 1950’s, then tubes changed into mT type.
Home use radio set using GT tubes was rare in Japan.

6SA7 was modified into 6BE6 and 6X5 modified into 80. It is possibility that knob is unoriginal.

(Collection No.11181)

INDEX


S-502 "SUPER STAR"  1953?

  

 神戸工業は川西機械時代からTENブランドで真空管やラジオを製造してきた。
これはその比較的後期のセット。6WC5 - UZ-6D6 - 6ZDH3A - 6ZP1 - KX-12Fの構成。
小型の普及型セットである。"TEN VOX"の6.5インチパーマネント・ダイナミックを搭載する。
同社は後に家庭用ラジオから撤退し、電子部品とカーラジオのメーカーになっていく。
現在も富士通テンとしてカーオーディオを生産している。

(Collection No.11295)

INDEX


5S-500  1954

  

 神戸工業の高級型5 Tubes Super Heterodyne 。6WC5-6D6-6ZDH3A-42-80HK の構成で、6.5インチ・パーマネント・ダイナミックを駆動する。
真空管は自社製である。デザインは当時の流行の先端を行くモダンなものである。

本機は、スピーカーグリルの桟が2本折れている。

(Collection No.11236)

INDEX


"Hitachi" products by Hitachi Ltd.


H-101   1955-57, JPY 15,700

  

TUBES: 6WC5-6D6-6ZDH3A-42-80BK, ermanent Dynamic Speaker (Hitachi Model HS-70, 7")

 Hitachi's high grade 5 Tubes Super Heterodyne. Hitachi faded out from the production of radio set in 1949.
They restarted production of in 1954. This model was the first model at restarting.

(Collection No.11781)

INDEX


Other Manufacturer's products


Yusei  Yusei Kosaikai/Golden Star Radio Co., Ltd. 1953?

  

TUBES: 6WC5 6D6 6ZDH3A 6ZP1 KX-80BK, 6.5" Permanent Dynamic Speaker (Pioneer Model PA-6)

The Japanese term “Yusei” means “Postal Service”.
Yusei Kosaikai was the welfare enterprise foundation for staff of postal service established in 1952.
This set probably manufactured by special order to sold low price radio to postal service staff.
The manufacturer “Golden Star Radio Co., Ltd” was an obscure factory.

(Collection No.11882)

INDEX


Onken Model OS220   Musen Suki Sangyo Co., Ltd. 1954?

  

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F-6E5, Permanent dynamic Speaker (6.5"),

 DON(mott)真空管を生産していた無線枢機産業の5 Tubes Super Heterodyne 。
真空管には自社製のDON製品が使われている。
mT管を使用したラジオが現れる中で低価格のST管を使用した従来型の5 Tubes Super Heterodyne が中小メーカから安価に供給された。
これはそのひとつである。

(Collection No.11432)

INDEX


Topic Model TRF-601 5 Tubes Super Heterodyne  Topic Radio Laboratory 1952-53 JPY 10,500 (Wholesale: JPY 7,300)

  

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F, Permanent dynamic Speaker (5"), Cast Al Cabinet

 中小メーカの小型5 Tubes Super Heterodyne 。アルミ合金製のキャビネットが特徴である。

同社製品は、アルミ合金製キャビネットを使用したものが多く、小型で安価な機種が多い。
プラスチックキャビネットの普及で同社の技術は不要になったと思われる。

本機の電源コードおよび出力トランスは当館で修理したときに交換したもの。

(Collection No.11032)

INDEX


Rain Bow Model No.D-200 5 Tubes Super Heterodyne  Rain Bow Denpa Kogyo Seisakusho 1952

  

 

TUBES: 6WC5-6D6-6ZDH3A-42-80BK, Permanent dynamic Speaker (Leica Model PD-6)

 無名メーカの5 Tubes Super Heterodyne 。
ダイヤルは当時試験放送を実施していたテレビ(丸ブラウン管)の画面をイメージしたものと思われる。
ダイヤルには開局当時の初期の民放のコールが記されている。

(Collection No.11216)

INDEX


Diatone Model SB-12   Mitsubishi Electric Co., Ltd. 1954 JPY 14,700

  

 

TUBES: 6WC5-6D6-6ZDH3A-42-80HK, Electro-dynamic Speaker (Diatone Model D-62)

 景気回復の中で、重電を中心とする電機メーカは、ラジオから離れていったが、ダイヤトーンスピーカを擁する三菱電機は細々と生産を続けていた。
まだ真空管は自社製ではなく、NEC製を使用している。デザインのセンスは比較的新しい。
これは、三菱電機が自社の販売網を擁して総合家電メーカとして飛躍する直前のセットである。

(Collection No.11229)

INDEX


Kyosei Model unknown 5 Tubes Super Heterodyne  Kyosei Musen 1953?

  

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F, Permanent dynamic Speaker (Pioneer Model PD-61)

 無名メーカの普及型5 Tubes Super Heterodyne 。
キットか完成品かは不明である。

(Collection No.11241)

INDEX


Televian Model 6S-502   Yamanaka Electric Co., Ltd 1953 JPY 17,800

  

TUBES: 6WC5-6D6-6ZDH3A-42-80-6E5, Electro-dynamic Speaker (Televian Model D-6)

 戦前からの老舗、山中電機のマジックアイ付5 Tubes Super Heterodyne 。

同社製品の中でも高級なモデルである。青色に塗装されたシャーシはこの頃の同社製品の特徴である

(Collection No.11243)

INDEX


Nanaola DX super Model 7S-18   Nanao Radio Co., Ltd. 1953

  

  

TUBES: 6WC5-6D6-6ZDH3A-42-80-6E5, Electro-dynamic Speaker (Pioneer)

 Ancient manufacturer Nanao Radio made this super heterodyne with RF stage.
Design of cabinet was European style like Telefunken or Philips.
This set seems all wave receiver.
However this is B.C. band only.
Call signs of Japanese station were indicated on the large scaled dial.
Push button switch like band selector was tone control selector.
Commercial broadcasting started in city area.
Rich people who lived in country area needed high sensitivity radio.
Such expensive hi-end radio equipped RF stage and hi-fi speaker was produced.
Serial number of this set was 166. It is possibility that number of built may be limited.

(Collection No.11267)

INDEX


Nanaola Model NR5S-3   Nanao Radio Co., Ltd. 1953 JPY 14,500

  

 

TUBES: 6WC5-6D6-6ZDH3A-42-80HK, Electro-dynamic Speaker (6.5")

 戦前からの大手メーカー、七欧通信機の5 Tubes Super Heterodyne 。
パイオニアのスピーカがオリジナルかどうかは不明。当時の5 Tubes Super Heterodyne としては回路、デザイン、価格ともごく平凡なもの。
キャビネット内部側面にアルミ箔が貼ってあり、アンテナ線が接続されている。
簡易的なループアンテナとしたものである。

掲載誌:電波科学1953.8

(Collection No.11264)

INDEX


Normal Model 6S-M1   Yoshida Electric Co., Ltd. 1954

  

 

TUBES: 6WC5-6D6-6ZDH3A-42-80HK-6E5, Permanent Dynamic Speaker (6.5", National)

This is small manufacturer’s set.
The design of cabinet was imitation of Sharp Model AR-310.
Details were small changed from original.
Some variations existed on this model.
This model put on the market as the cabinet kit model M-1.

Cabinet is fear condition. Rear cover is missing.

(Collection No.11135)

INDEX


"Pearl" Products manufactured by Nippon Radio Ind. Co., Ltd.(JRC)


Pearl Model NR-54   Nippon Radio Ind. Co., Ltd. (JRC) 1951?

  

TUBES: 6WC5-6D6-6ZDH3A-42-12F, Electro-dynamic Speaker

 日本無線の民生用ラジオ部門が分離、独立した日本ラジオ工業(略称は”JRC”となるところがミソ)の小型5 Tubes Super Heterodyne 。
親会社と同じJRCのマークも付いている。
周波数は新しい535-1605kcになっているが、IFは463kcの旧規格のままである。

本機はダイヤル指針が脱落している。本来は水平である。

(Collection No.11587)

INDEX


Pearl(JRC) Model BR-12B   Nippon Radio Ind. Co., Ltd.(JRC) 1953

  

 

TUBES: 6WC5-6D6-6ZDH3A-42-80HK, With Push Button Selector, Permanent Dynamic Speaker

 日本無線の民生用ラジオ部門が分離、独立した日本無線電機の5 Tubes Super Heterodyne 。日本ラジオ工業から社名変更したと思われる。
親会社と同じJRCのマークも付いている。
この頃量産されるようになったプッシュボタン式選局を備える個性的なデザインのラジオ。
押しボタンは5個あり、JOAK,JOAK,FEN,JOKR,JOQRの東京の局の表示がある
シャーシ中央部をプッシュボタンのユニットが占めているため、左右に離れて部品が配置された特異なレイアウトのシャーシである。
構造が複雑でコストが高かったと思われる。キャビネットのデザインは個性的だが時代の流行に合っているとは言い難い。
1953年8月の資料に同社の名前がないことから、この年に消滅したものと思われる。
日本無線は終戦直後いち早く民生用ラジオ業界に参入し、平和産業への転換を果たし、再び軍需や業務無線の製造に戻った結果、同社の民生用ラジオ部門はその役目を終えたのである。

(Collection No.11269)

INDEX


Pearl Desk Lamp Radio Model SR-1   Nippon Radio Ind. Co., Ltd. (JRC) 1953

  

 

TUBES: 12SA7-12SK7-12SQ7-35L6-35Z5, Permanent Dynamic Speaker

 Nippon Radio Ind. Co., Ltd. was separated company from JRC.
This was transformer less super heterodyne radio with desk lamp.
Speaker was installed in the top cover.
The construction of upper frame was weak.

Upper frame was broken.
Shade was missing. We equipped this shade made at same days.

(Collection No.11041)

INDEX


Kowa Model A   Mituwa Tusin Kogyo Co., Ltd. 1953

  

  
                                  短波コンバータ用ソケット

TUBES: 6WC5-6D6-6ZDH3A-42-80BK, Permanent Dynamic Speaker (6.5", Mitsuwa Vox)

 中堅メーカー、ミツワ通信工業の5 Tubes Super Heterodyne 。
回路は平凡だが、おもしろいのは、短波コンバータ(配置図には「アダプタ」と表記)用のソケットが付けられている点である。
日本短波放送(NSB)開局以前にこのような装備があるセットは珍しい。
ソケットはシャーシを継ぎ足して取り付けられており、標準的なものではなく、特別な仕様の様に思える。
このセットは、銘板の検査者が「成長の家文化科学部」となっている。宗教法人が特注したものと思われるが詳細は不明である。

(Collection No.11407)

INDEX


 Clarion Model 5S4   Teikoku Dempa Co., Ltd.. 1952 Wholesale: JPY 10,200

  

 

TUBES: 6WC5-6D6-6ZDH3A-42-80BK, With Mu Tuning and Rod Antenna, Permanent Dynamic Speaker (6.5")

This is one of the Clarion’s home radio set.
This set used Mu tuning unit instead of variable capacitor.
And rod antenna was installed a t the top of cabinet.
Clarion (Teikoku Denpa) changed their product from home radio into auto radio.
This set used the technology of auto radio.

(Collection No.11307)

INDEX


 Pigeon Model 6S-2   Sogo Denki Co., Ltd. 1953 JPY 16,000

  

TUBES, 6WC5-6D6-6ZDH3A-42-12F/80BK-6E5, Permanent Dynamic Speaker (6.5", Nissan Model P6B))

 Small manufacturer's Super Heterodyne set.

This cabinet probably repainted.

(Collection No.11348)

INDEX


 Pigeon Model TS-53A   Sogo Denki Co., Ltd. 1953 JPY 12,500

    

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F, Permanent Dynamic Speaker (6.5")

Medium manufacturer’s super heterodyne set.
Trade mark likes the package of cigarette “Peace” designed by Raymond Loewy.

(Collection No.11509)

INDEX


Melodyne Model MS-6L?   Toyo Sangyo Radio Works 1953 JPY 15,800

  

TUBES: 6BE6-6BD6-6AT6-6AR5-6X4-6E5 , Permanent Dynamic Speaker (6.5")

 Small manufacturer’s super heterodyne set.
This was one of the early example of set using mT tube.

(Collection No.11524)

INDEX


Alpha Model 6B-32   Nippon Alpha Electric Co., Ltd 1954

  

TUBES: 6WC5-6D6-6ZDH3A-42-80BK-6E5 , Permanent Dynamic Speaker (6.5")

Nippon Alpha Electric was separated from Anritsu Electric Co.,
Magic eye was installed at the center of dial pointer.

(Collection No.11446)

INDEX


TOKO SUPER Model Unknown   Toko Electric Co., Ltd. 1954?  

  

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F-6E5 , Permanent Dynamic Speaker (6.5")

 Small manufacturer’s low cost super heterodyne set.
This manufacturer made radio cabinet and radio kit.
This set may be assembled kit.
In the mid 1950’s, the price of ST tube was cheap.
The small manufacturer’s radio set using ST tubes was sold as bargain item at a department store.

(Collection No.11420)

INDEX


Walz Model unknown Model unknown Tokyo Musen Denki K.K. 1955

  

TUBES: 6WC5-6D6-6ZDH3A-6ZP1-12F-6E5 , Permanent Dynamic Speaker (6.5")

 Small manufacturer’s low cost super heterodyne set.
Tubes was also small manufacturer’s E.V.T. brand.

(Collection No.11293)

INDEX


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