The CS-7 is a remote control switch for the Drake TR-7. It would switch five different radios locally, and up to 5 remote antennas. Decades have passed and 90% of those remote RF switches went into the trash when the tower came down.

This is a PCB that will allow the CS-7 to live on. It converts the 25 V ac used to drive a small motor in the RF remote switch to 12 V dc. This will drive most of the popular remote RF switches on the market, including the ones from DX Engineering.

The control board fits inside the CS-7 and will current limit at 100 mA. If there is a fault, i.e. a broken wire or faulty relay (s) the indicator will change from green to red.

No holes are drilled in the CS-7 and if you'd like to revert it back to factory, it's easy enough to do. Only a few wires are moved during the conversion.

There is a second PCB that allows you to use a plug instead of wiring in 8 different wires. Makes moving the shack around much easier.

The price includes both PCBs.

This is for an advanced builder. One SMD is used, and it's rather large by SMD standards.

Documentation is thin, with part list, PCB overlays and schematic.

Price for the pair of PCBs is $15.00
Shipping is $3

Shipping will be added at time of check out.

Stacks Image 2624
Stacks Image 2626