| Overview | Replacement Parts | Re-Capping the Printed Circuit Board | Pictures | |
|---|---|---|---|---|
The General Electric P-745A is a 5-transistor portable radio that measures 3.5 x 6.5 x 1.6 inches. Production started in 1958, and the radio features that CONELRAD markings at 640 & 1240 KC which were required by law.
This radio was sold as "Non-Working," so I assumed it would be an easy re-cap job to get the radio playing again. When turned on, it would make a pop and would play a bit of static.
| Original Rating/Part | Quantity | New Replacement | ||
|---|---|---|---|---|
| 8 MFD. @ 6V+ | 1 | Sprague TE-1303.3 | ||
| 32 MFD. @ 6V | 1 | Sprague TE-1093-E3 (32 MFD. Replacement) | ||
| 3 MFD. @ 6V+ | 4 | Sprague TE-1302 | ||
| 4JX1A520C | 1 | NTE/Vetco NTE102 | ||
| 2N241A | 1 | NTE/Vetco NTE102 | ||
| 2N169 | 1 | 2N169 | ||
| 2N94 | 1 | NTE NTE103A | ||
| 2N212/1297 | 1 | 2N212, 2N169 (Change R1 to a 27K, 33K, or 39K resistor) | ||
The re-cap was pretty easy thanks to the diagram in the Beitmans schematic (click here to see it).
The radio still wouldn't play after the re-cap, so I checked polarity and replaced 3 kinda dodgy looking resistors (R2 (10K), R3 (1K), and R14 (39K)). I also checked for continuity between osc. coil leads which all seemed fine, so I then turned my attention to the transistors.