The note specifically states that the connection described (a diode off the
TX EN loop) is only for the Alpha 87A and 89, which use PIN diode switching
with almost no delay times.
It wasn't intended for amps with T/R relays!
Glenn AE0Q
On Tue, Dec 6, 2011 at 8:18 AM, Paul Christensen <w9ac@arrl.net> wrote:
> I really wish that information would disappear, but the Internet is
> forever...
>
> Barry and other's -- Please be careful with this set-up. I was part of the
> original discussion back in 1998 together with Terry, W6RU. The concept
> looks great on paper, but results in hot-switching on the trailing RF
> envelope with some Alpha amps. I detected the problem when the Jennings
> RJ-1A failed in my Alpha 77Dx.
>
--
"Remember, any tool can be the right tool!" Red Green
AE0Q ex: GM5BKC, ZB2WZ, V31RY, SV0WY, WA0VPK
ae0q@arrl.net --SOWP 5558-M, ARRL LM, QCWA LM, OOTC, NCVA--
http://www.radiotipsandtales.com
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