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ANTENTOP- 01- 2010, # 012

Practical Photos for P.A. on Tube GU-43B



Photo # 5


Photo # 5. Here is shown tube socket. Grids ring are used from original socket. Cathode and heater is made by myself. I made it from phosphor bronze in 0.35- mm thick.

Photo # 6. Tube Inductor wound from copper wire in diameter 3.6- mm (7 AWG). It was used main electric  wire (plastic insulation was removed).

One inductor has diameter 45- mm another one 32- mm. Box- it is capacitor at antenna terminal. It was used old German Capacitor 3x 495- pF. Green resistor is antistatic resistor 30- kOhm x 2-Wtts that is connected to bridge to antenna. White wire is high- voltage wire to the RF- Choke.


Photo # 6

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February 13, 2018 22:52

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