National PL-420A
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| Year: 1954 | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Valves / Tubes | 4: 1R5 1T4 1S5 3S4 |
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| Main principle | Superheterodyne (common); ZF/IF 455 kHz |
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| Tuned circuits | 6 AM circuit(s) |
| Wave bands | Broadcast only (MW). |
| Details | |
| Power type and voltage | Dry Batteries / 1.5 & 67.5 Volt |
| Loudspeaker | Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 cm = 2.4 inch |
| Power out | |
| from Radiomuseum.org | Model: National PL-420A - Panasonic, Matsushita, |
| Material | Plastics (no bakelite or catalin) |
| Shape | Very small Portable or Pocket-Set (Handheld) < 8 inch. |
| Dimensions (WHD) | 200 x 130 x 55 mm / 7.9 x 5.1 x 2.2 inch |
| Notes | Test-Export of 1000 radios for the US-Market. The decision made at that time was the first step in opening up and expanding the U.S. market. Earphone available. Note that the National brand could not be used in the USA and subsequently Panasonic was created as a brand. Model PL-420A uses a National BL-145B (Eveready 457, RCA VS-082, Burgess K-45) battery. Model PL-420B uses the larger battery National BL-145 (Eveready 467, RCA VS-016, Burgess XX-45) - probably the cabinets differ in the internal layout or exterior dimensions. |
| External source of data | panasonic.co.jp |
| Mentioned in | -- Schematic |
Model page created by Ernst Erb. See "Data change" for further contributors.
All listed radios etc. from Panasonic, Matsushita, National ナショナル (also tubes); Osaka
Here you find 2625 models, 2385 with images and 507 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
