[ARC5] Heater voltage split in "command" receivers

[Mike Hanz]

Sounds like a perfect opportunity for those audio guys who sell matched pairs...getchur matched filament strings here!  More transparent white noise guaranteed!  Hear everything you're missing with existing poorly matched filament voltages!  :-)

On Jan 25, 2013, at 5:13 AM, Leslie Smith <vk2bcu at operamail.com> wrote:

> Yes, Ken, I did the same, and made the same observation.
> The heater resistances are unequal.
> 
> 
> 
>  Les
>  vk2bcu at operamail.com
> 
> 
> On Fri, Jan 25, 2013, at 3:21, Kenneth G. Gordon wrote:
>> On 24 Jan 2013 at 1:17, WA5CAB at cs.com wrote:
> 
>> Just to check (and because I am intensely curious about most things), I  took 
>> the time to measure the AC filament voltage at each tube socket: in no  case 
>> whatever was the 24 VAC source evenly-divided across any two sets of 
>> seriesed tubes: it would be 11 volts on one tube and 13 volts on its  partner, 
>> or 11.5 V on one and 12.5 on its partner, etc.
>> 
>> I found that interesting, but not particularly important.
>> 
>> Ken W7EKB
> 
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