Are you sure that you are measuring "active power (= U*I * cos (fi))" when in
standby?
The power factor of an idling capacitor input power supply can be quite low.
73/
Karl-Arne
SM0AOM
----- Original Message -----
From: <dl4seq@amsat.org>
To: <amps@contesting.com>
Sent: Tuesday, June 26, 2007 3:21 PM
Subject: [Amps] Henry 3K Classic stby. Input Power?
> Hello,
>
> I bought a used Henry 3K Classic with one 3cx1200a7. The amplifier is working
> great and I am very satisfied with the quality of it. The output power is
> very good and really sufficient (1.5kw). What surprises me is the AC input
> during standby: 600w! Has anyone an idea if this is normal or if there is a
> problem?
>
> Many thanks for every hint and 73's!
> Markus, DL4SEQ
>
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>
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> 17:32
>
>
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Checked by AVG Free Edition.
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