model 86 switches barely enough for a 4-1000A? model 88 switches work well in QRO if you parallel a couple sets of contacts. I built a custom one with 3 decks 2 used for the inductor taps. It has 4 wipers and double contacts on each deck. The third wafer does a plate tune padder. Never hurt it with a 4CX3000A. SS prices are a rip off is the general rule. i built mine for less than $50.
jmltinc@... wrote:
toggle quoted message
Show quoted text
Can anyone tell me how to select?unmarked wafer switches for RF switching, such as e-shopping
at Surplus Sales?
?
What is the general rule regarding contact spacing vs HV? If unmarked, how do I get into the ballpark of current handling capability? Any other concerns?
?
Thanks,
John, N9RF
