[Amps] Alpha 9500 Idling Current

[Paul Christensen]

> "Paul, My Alpha 9500 runs 232 ma idling current with 3535 volts on the
plate no load and 3420 volts on the plate when idling.  Larry, WA9MAG:

That amount of Ip idle current seems high to me for the 9500.  Possibly
W6WRT and W8ZR can weigh-in with their findings.  Possibly, it was set
higher in software?  

The Alpha 8406 I use on 6m idles at 200+ mA, but I deliberately set it high
in software to help offset an internal EBS timing error.   Hard to believe,
but the 8406 was truncating CW characters in QSK mode.  It was so bad, I
first suspected a fault with the RF input sensor but it's sensing fine.
When observing a QSK-keyed CW waveform on a scope, the 9500 suffers from the
same EBS issue, albeit it's much more subtle and as is typically the case
with EBS, it only affects the very onset of the waveform.           

Paul, W9AC

-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Larry P.
Greenberg
Sent: Thursday, December 29, 2016 12:25 PM
To: amps at contesting.com
Subject: [Amps] Alpha 9500 Idling Current

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