[Drake] TR4C audio transformer

[Darrell, WA5VGO]

Well, I believe the TR-4 uses a 6AQ5 audio output tube. With about 250 
volts on the plate, it would have a primary impedance of around 5000 ohms. 
So I would pick up a replacement transformer that has a 5000 ohm primary 
and a 4 ohm secondary rated at about 2 watts.These values don't have to be 
exact. Anything in the ballpark should work just fine. Check out the 
Hammond catalog. They probably have something with the exact footprint.

73,
Darrell, WA5VGO


At 09:20 AM 7/27/2005 -0400, jkerby14 at comcast.net wrote:
>I have a TR4C with an open audio transformer . I`m looking for a replacement
>. Sure ,I`d like to have a new one . It`s Drake part number 369-0120 . If
>that`s not possible a good one from a junk chassis would get the old girl
>back on the air. It is T-15 on the schematic and says CT-864 on the
>tranformer . Any help would be much appreciated . 73 , Jeff Kerby / N4YU
>
>______________________________________________________________
>Drake mailing list
>Home: http://mailman.qth.net/mailman/listinfo/drake
>Help: http://mailman.qth.net/mmfaq.html
>Post: mailto:Drake at mailman.qth.net