[Heathkit] SB-102

Bwana Bob wb2vuf at verizon.net
Wed Jul 2 19:41:58 EDT 2014


Is it possible that you are reading the peak voltage and not rms?

Bob WB2VUF

On 7/1/2014 7:57 AM, WQ9E at btsnetworks.net wrote:
> To add to Drew's suggestions it sounds like you are measuring the filament voltage for the supply not connected to the radio.  If so the filament voltage will be very high under no load, it will drop to normal when connected to the transceiver.
>
> Rodger WQ9E
>
> -------- Original Message --------
>> From: "Drew P. via Heathkit" <heathkit at mailman.qth.net>
>> Sent: Tuesday, July 01, 2014 3:13 AM
>> To: heathkit at mailman.qth.net
>> Subject: Re: [Heathkit] SB-102
>>
>> Daniel Yoder wrote:
>>
>> "I just got my Tech ticket a few weeks ago and own a SB-102. I want to
>> see if I can fire this up soon. I am in the middle of rebuilding the HP-23A
>> and I want to get on 10 meters SSB.
>> I have another HP-23A that I have been cooking with my variac. At 70 VAC
>> input to the primaries I am getting close to 590 HV 220 LV and the 12 vac
>> is reading 22 and the 6 vac is reading 14, why is this AC so high?"
>>
>
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