[Boatanchors] Hallicrafters SX-25

[Robert Nickels]

On 3/7/2014 8:35 PM, Joe Walden wrote:
> I am looking for the 4000 to 10,000 ohm and the 500 or 600 ohm
> speaker output windings

Joe - Edcor USA makes a broad line of transformers, including push-pull 
audio output transformers for that class of tube,  priced at less than $20:

http://www.edcorusa.com/c/65/xppseries

Their products are favored by the tube hi-fi and guitar amplifier 
builders and are made in the USA (note that screen winding taps are 
provded to allow use of the "ultra-linear" circuit). Unfortunately I'm 
not aware of any current production transformer with the old 500 or 600 
ohm secondary.   I'd go with a 10 watt Edcor replacement in the radio 
and an outboard 70 volt line transformer if I needed to drive a 500 ohm 
speaker.

73, Bob W9RAN