[Elecraft] normal K3 voltage drop on TX
Jerry Moore
jermo at carolinaheli.com
Fri Aug 21 11:12:33 EDT 2015
If you google around you'll find the Astron VS-35M is known to have issues
with voltage sag under load.
-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of
Charles Yahrling
Sent: Friday, August 21, 2015 11:06 AM
To: elecraft at mailman.qth.net
Subject: [Elecraft] normal K3 voltage drop on TX
What would be a normal value on the FP voltage display when tx at 100W,
using factory fused cables? No sub installed.
PS is Astron VS-35M linear, voltage set at 13.9 idling per FP display.
drops to 11.1 on TX. Current varies but up to 15.5A indicated. Specs call
for 17-22A tx @100W.
I suspect bad pass transistor and/or high drop over fuses, but want to
establish normal indication for tx drop. 11.1v seems way out.
tnx in advance
--
de AB1VL
NAQCC #6799
ab1vl.com
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