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72987 1969-12-31 Re: [EE] Wire wrapping insight nee..	73000 2005-03-08 RE: [EE] Wire wrapping insight nee..
73004 2005-03-07 Re: [EE] Wire wrapping insight nee..	73008 2005-03-08 Re: [EE] Wire wrapping insight nee..
73029 2005-03-07 Re: [EE] Wire wrapping insight nee..	73033 1969-12-31 [EE] Wire wrapping insight needed!..
73074 2005-03-07 Re: [EE] Wire wrapping insight nee..	73102 2005-03-07 Re: [EE] Wire wrapping insight nee..
73116 2005-03-08 Re: [EE] Wire wrapping insight nee..	73140 2005-03-07 Re: [EE] Wire wrapping insight nee..
73145 2005-03-07 Re: [EE] Wire wrapping insight nee..	73183 2005-03-06 Re: [EE] Wire wrapping insight nee..
73186 2005-03-07 Re: [EE] Wire wrapping insight nee..	73201 2005-03-07 Re: [EE] Wire wrapping insight nee..
73213 2005-03-07 Re: [EE] Wire wrapping insight nee..	73218 1969-12-31 Re: [EE] Wire wrapping insight nee..
73226 2005-03-07 Re: [EE] Wire wrapping insight nee..	73228 1969-12-31 Re: [EE] Wire wrapping insight nee..
73240 2005-03-05 Re: [EE] Wire wrapping insight nee..	73247 2005-03-07 Re: [EE] Wire wrapping insight nee..
73260 1969-12-31 Re: [EE] Wire wrapping insight nee..	73266 2005-03-07 RE: [EE] Wire wrapping insight nee..
73280 2005-03-07 Re: [EE] Wire wrapping insight nee..	73325 2005-03-08 Re: [EE] Wire wrapping insight nee..
73333 2005-03-06 Re: [EE] Wire wrapping insight nee..	73341 2005-03-08 Re: [EE] Wire wrapping insight nee..
73367 2005-03-07 Re: [EE] Wire wrapping insight nee..	73386 1969-12-31 Re: [EE] Wire wrapping insight nee..
73387 2005-03-06 Re: [EE] Wire wrapping insight nee..	73397 2005-03-07 Re: [EE] Wire wrapping insight nee..
73404 2005-03-07 Re: [EE] Wire wrapping insight nee..	73408 2005-03-07 Re: [EE] Wire wrapping insight nee..
73436 1969-12-31 Re: [EE] Wire wrapping insight nee..	73437 2005-03-06 Re: [EE] Wire wrapping insight nee..
73465 2005-03-07 Re: [EE] Wire wrapping insight nee..	73487 1969-12-31 Re: [EE] Wire wrapping insight nee..
73495 2005-03-08 Re: [EE] Wire wrapping insight nee..	73496 2005-03-07 Re: [EE] Wire wrapping insight nee..
73506 2005-03-06 Re: [EE] Wire wrapping insight nee..	73523 2005-03-05 Re: [EE] Wire wrapping insight nee..
73543 2005-03-07 Re: [EE] Wire wrapping insight nee..	73545 2005-03-07 RE: [EE] Wire wrapping insight nee..
73549 2005-03-07 RE: [EE] Wire wrapping insight nee..	73562 2005-03-07 RE: [EE] Wire wrapping insight nee..
73563 2005-03-07 RE: [EE] Wire wrapping insight nee..	73592 2005-03-06 Re: [EE] Wire wrapping insight nee..
73603 2005-03-07 Re: [EE] Wire wrapping insight nee..	73607 2005-03-07 Re: [EE] Wire wrapping insight nee..
73614 2005-03-06 Re: [EE] Wire wrapping insight nee..	73615 2005-03-06 Re: [EE] Wire wrapping insight nee..
73628 2005-03-08 Re: [EE] Wire wrapping insight nee..	73629 2005-03-07 Re: [EE] Wire wrapping insight nee..
73632 2005-03-06 Re: [EE] Wire wrapping insight nee..	73635 2005-03-07 Re: [EE] Wire wrapping insight nee..
73641 2005-03-06 Re: [EE] Wire wrapping insight nee..	73650 1969-12-31 Re: [EE] Wire wrapping insight nee..
73672 2005-03-07 Re: [EE] Wire wrapping insight nee..	73760 2005-03-09 Re: [EE] Wire wrapping insight nee..
73772 2005-03-09 Re: [EE] Wire wrapping insight nee..	73776 2005-03-09 Re: [EE] Wire wrapping insight nee..
73798 2005-03-09 Re: [EE] Wire wrapping insight nee..

 Message #73397 of 126777 
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Howard Winter wrote:
> Huh!  What's wrong with AC straight from the 6.3V transformer winding,
> as God and Marconi intended?   :-)

I'm not so sure about Marconi, but maybe DeForest.  Anyway, I agree that
it's fine to use AC when the heater is designed that way most of the time.
I do remember seeing a very sensitive circuit that had filtered DC even for
AC fillaments just to get a little less noise.  Maybe it was a bad, design,
I don't know.  At the time was a kid eagerly soaking up what the supposed
experts were doing.


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