If I recall correctly, in the "old days", we were limited (by FCC
regulation) to 1000 watts DC INPUT power to the final amp. stage. The amp
had a CW "high voltage" position to give this 1000 watt input, and a higher
voltage value for SSB. This allowed higher peak SSB powers while still
keeping to the 1000 Watt DC input limitation. Hence the CW/low and SSB/high
voltage positions.
de Vic, N5YY
----- Original Message -----
From: "Paul Young" <paul@g0hwc.com>
To: <Amps@contesting.com>
Sent: Monday, August 04, 2008 10:54 AM
Subject: Re: [Amps] Alpha 87A Low Voltage Switch
> >Hi Group,
>>
>>Anyone know why the Alpha 87A has the hi and lo voltage switch on the
>>front
>>panel when it's never supposed to be used on the lo setting? Just
>>curious.
>>
>>73 Jerry
>>K1JOS
>
> I seem to remember seeing something in the Alpha 87a Yahoo Group
> http://groups.yahoo.com/group/Alpha87a
>
> Something about regulations back when they were built ?
>
> Paul G0HWC
>
> Check out my website www.g0hwc.com / www.sstv.org.uk *Echolink node
> MB7ICL-L "381900"*
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
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