[Kenwood] Using TS870SAT with Collins 30L-1

[hamradio at twcny.rr.com]

Bob: This looks like a safe bet but now a cheap one. I think I will give these folks a call

http://ameritron.com/Product.php?productid=ARB-704


Nick




---- K2RET <K2RET at comcast.net> wrote: 
> Nick,
> 
> Whether a direct hook up will work or not I can not answer.  However, I 
> myself have always used an isolation relay between my radio and amplifiers. 
> Most of your older amplifiers keying circuits used 110 volts AC to pull in 
> the TX relay in the amp.  Modern radios are not designed to handle this high 
> voltage as only small switching transistors are now used.  Tom, W7WHY has it 
> correct.  Build a small 12v relay in a box with wires to connect from your 
> radio to your amp.  Use the radio keying circuit to pull in the relay and 
> the relay contacts to pull in the amps keying circuit.  The cost is minimal 
> and the protection is well worth a few bucks.
> 
> Bob - K2RET 
> 
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