[Amps] Henry 3K Classic stby. Input Power?

[Karl-Arne Markström]

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 at amsat.org>
To: <amps at 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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