Here the paralleled, high power RJ2B output relays are installed on a custom bracket. RG-400 teflon coax is used for the bypass leg. It goes through a grommet..and terminates on the smaller input RJ1A vac relay. More RG-400 tefon coax from input SO-239 connector...to the same RJ1A input relay. SFT-600 teflon coax (blue) used between the pair of output relays...and the output coax connector...which is a 7-16 DIN female type. The output relays coils are wired in parallel, with the back emf diode across one of the coils. This completes the vac relay installation and wiring. A total of 4 x vac relays are used. (1) input. (2) cutoff bias. (3+4) paralleled output relays. The feedthrough (bypass) swr will be measured, and a compensation cap installed to cancel out residual XL. SFT-600 teflon coax is the teflon version of LMR-600..and dwarfs RG-393.
https://www.youtube.com/watch?v=Jt7Iv8X84lY
Author
Topic: 10 kw CCS on 6M..using the 3CX-6000A7...Part 11 (Read 146 times)