JC-5 was designed to cover the needs of high power professional use and increased reliability. So, materials of the best in market were used, despite the high cost of some of them, due to their limited production! At the pictures you can take a look at the inside of the coupler. In the photos we can see mounted in a row the vacuum relays, by which the high voltage doorknob ceramic capacitors are selected. We can also see the high voltage copper wiring above the p.c. board. The reason we did not construct the high voltage paths on the board is that we don’t consider the p.c. board reliable enough for withstanding voltages of the order of 8 KV that may appear at the output of the coupler when λ/2 or short vertical antennas are used!
Independent Capacitor input and output blocks
3mm Coil wires
Dipped silver Mica Capacitors on the input circuit
Ceramic doorknob capacitors on the output
10 x vacuum relais (8Kvolt) & 19 x schrack relais
JC-5, Upgraded control Box, 2 pieces 4 pin connector, Manual and good packing.
You can also control the tuner with this control box. It is a very easy design so you can easy reproduce it to your own demand. You can also control it directly from many Kenwood and Icom transmitters
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