Are you sure that you are measuring "active power (= U*I * cos (fi))" when in
The power factor of an idling capacitor input power supply can be quite low.
----- Original Message -----
Sent: Tuesday, June 26, 2007 3:21 PM
Subject: [Amps] Henry 3K Classic stby. Input Power?
> 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
> Many thanks for every hint and 73's!
> Markus, DL4SEQ
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