change the 50C5 to a 6AQ5 I had on hand (rewire socket). This radio used a selenium rectifier which was bad so silicon bridge rectifier was used with new 100uf caps as filter to get clean 150v B+. Since If selectivity was minimal I added an old 6KHZ mechanical filter and a second IF amp tube (5899 subsub mini) to fix that and and a bit of gain. 63 results for 50c5 tube. Save this search. Shipping to: Russian Federation. Matched Pair 50C5 GE NOS NIB same code Vacuum Tubes, TV-7D tested 117%+.
Another tube that would be very interesting to try in a simple transmitter is the 6HU8, which is equivalent to the European ELL80 is a dual PENTODE output tube intended to give 6 Watts + 6 Watts stereo output, or as a push-pull - AA5 AM tube radio designs to run on 240V AC, four methods (a "what if" study). -To run an AA5 on 100VAC (Japan), replace the 50C5 with a 35C5 or 30A5, or if it's a 50L6, use a 35L6. Optional: install second 1K resistor in parallel with the resistor connected between rectifier output B+ and the output tube screen/ B+ for rest of set.
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