[Hallicrafters] AF output transformers???

[Rodger Singley]

I was planning to at least temporarily do this in an HRO-50 I am returning
to its original configuration.  Somewhere in its life a 50 watt universal
output transformer was installed above chassis where the calibrator and NBFM
sockets live and individual bias pots were added for the 6V6 output tubes.
I guess it belonged to the great grandfather of our current crop of
audiophiles (fools?).  Apparently oxygen free copper cable wasn't available
back then so the modifier had to be content with plain old hookup wire...
At least no new holes were drilled so it is restorable back to original.
Until I find something more suitable at hamfest, I will be using a 110/220
volt filament transformer (that also came attached to the back of the set as
part of a product detector addition but that is a whole other story).

Rodger WQ9E

> -----Original Message-----
> From: hallicrafters-bounces at mailman.qth.net 
> [mailto:hallicrafters-bounces at mailman.qth.net] On Behalf Of Charlie
> Sent: Monday, January 30, 2006 12:58 PM
> To: Hallicrafters at mailman.qth.net
> Subject: [Hallicrafters] AF output transformers???
> 
> To replace your blown audio output transformer,  just turn a 
> 6.3 V filament transformer around backwards and us it for the 
> audio output.  Plate/B+ on the primary and speaker to the 
> filament leads.  For P-P tubes, use one that has a 110/220 V 
> primary with the center tap at the junction of the two 
> primary windings.
> 
> 
> Stand-by for flaming.  Am now putting on my asbestos suit.........
> 
> 73' Charlie k3ICH