543
Item nr.
Overhear 2m hams in the car
| Production | Japan, 1975. |
|---|---|
| Bands | 2m Ham (144-146MHz). |
| Semi- conductors | SN76007 (LF amp). |
| Cabinet | Metal. Size 15x5x17cm. |
| Power | DC12V. |
| Documents | RM.org. |
Frequency selection is by a choice of 11 crystals; my set only has 2, namely for 26.730 and 26.760 Mc. I think the first oscillator runs on the fifth harmonic of the crystal, and first IF could be 10.7MHz. In this case these crystals would receive 144.35 and 144.50 MHz. Crystals can be inserted through a small panel in the bottom. Besides the 11 crystal controlled channels, a twelfth position of the frequency selector allows to tune freely over the 2m band (the ham frequencies 144 to 146 MHz). The radio has Squelch, silencing the speaker as long as no signal is received.
Because the bottom lists JAPAN 508 as the origin, I think the unit was roduced in a year ending in 5, that should be 1975. In The Netherlands, MARC may stand for Machtigingsregeling Alternatieve Radio Communicatie, the name for 27Mc licences, but it was also used as brand names for fancy radios.
| Obtained | 5/2021 from Rudi, SN=16100284. |
|---|---|
| Condition | 8; stickers, slight wear, but complete and functional. |
| Disposed | Sold 6/2022. |
to connect the speaker to the bottom and need not be removed to open the cabinet. Inside you can see a lot of transistors and coils, and the crystal bank.
The top sticker seems to imply that the radio belonged at some time to ham PA3BNS, though the last letter is not very clear and could be a J also.