[HBR] Transformer

[TC Dailey]

Yep... what I was thinking... just figured somebody might like to know it's 
out there.  Halliscratcher speakers had 5K inputs on some models.

----- Original Message ----- 
From: "Walt Hutchens" <waltah at earthlink.net>
Subject: Re: [HBR] Transformer


>> In the back of the latest Antique Electronic Supply catalog, there's a
>> replacement output xfmr, made per request of the CCA guys.  It's 600 ohms 
>> in /
>> 8 ohms out / 12 watts.  In case you need one.
>
> This transformer is intended for the Collins military receivers -- the 
> R-390
> would be an example -- that have a 'line' audio output at 600 ohms and 
> thus
> need another transformer to get to speaker impedance.   As an output
> transformer in an HBR-set something more like 3000 or 5000 ohms to a 
> speaker
> value (4 or 8 ...) would be appropriate.   The AES transformer # T-P31 
> would
> do (and at a very good price, as these things go), also their # P-T125ASE
> or  P-T125A.
>
> Output transformers are also easily improvised if needed.