Sony TR-6

  - Released in May 1956
  - 6-transistor + 2 diode
  - 6V (C-cells x 4)
  - 224 x 110 x 35 mm
  - 890 grams

     TR-6 in wakakusa green

Intro dates

Note: Model names appearing in red represent the first transistor radio released by the respective maker

NEC NT-6A  (March '57)

- One of the two first NEC transistor radios
   (NEC simultaneously released 2 different "first" models )
- 6-transistor + 1 diode
- 6V (C-cells x 4)
- 215 x 100 x 42 mm
- 890 grams with batteries

Show me more about the NT-6A

Standard SR-F31  (April '57)

- Standard's first transistor radio
  (Used Sony then Hitachi transistors)
- 6-transistor + 1 diode
- 9V (AA-cells x 6)
- 202 x 107 x 50 mm
- 850 grams with batteries

          
    
                    

Hitachi TH-669  (May '57)

- Hitachi's first transistor radio
- 6-transistor + 1 diode
- 6V (C-cells x 4)
- 215 x 105 x 35 mm
- 800 grams with batteries

Show me more about the TH-669

Sony TR-66  (May '57)

- The direct successor to the TR-6
- Design goal was to deliver a less expensive product
- 6-transistor + 2 diode
- 6V (C-cells x 4)
- 224 x 116 x 44 mm
- roughly 1 kg with batteries

Show me more about the TR-66

Hitachi TH-668  (November '57)

- 6-transistor + 1 diode
- 6V (C-cells x 4)
- 213 x 100 x 37 mm
- 800 grams with batteries

Show me more about the TH-668


Hoffman "Home & Travel" P410 + P411 series
                               [K-P411 solar pictured]

- 411 was Hoffman's first solar transistor radio
- Released in (late spring?) 1957
- 6-transistor + 1 diode
- 6V (P410: C-cells x 4, P411: Rechargeable AA-cells x 4)
- 222 x 114 x 35 mm (410)
- P410: 790 grams, P411: 1 kg

Show me more about the P411

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