>
>One popular HF amp today (I own one) is designed so that when one flips
>the power switch the fil, fan and HV all come on. There is no CW/SSB
>switch as on some of the older amps. i.e. SB-220 and Drake L-4B (I
>recall). This amp runs a pr of 3-500Zs with a key down output of 1500+
>watts. Duty cycle is 50% or 10 min on and 10 min off. The standby
>switch only defeats the T/R switching. And yes, it's full QSK.
>
>Now, my 8877 on 144 MHz is a different animal. It takes a full 1 min
>for the heaters to get the cathode up to operating temp. Here, it's
>smart to wait til the thing warms up.
1 minute is way short of the recommended warm-up time.
.
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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