[TMC] Wanted: TMC Part No. TF-104 Filament Transformer

[Tony Faiola]

Hello Bruce:  I think there may be the transformer you seek here, but  
I need to check further.  It is a TMC T-239 (or 259) 6.3VAC CT at 5.5  
Amperes same primary as you require.  It's not clear in your query as  
to the equipment for your replacement.  It appears like the SBE power  
supply.  If so, I need to check the foot print to see if it has the  
exact same dimensions.  In the meanwhile, look up the T-239 or T-259  
specs.
Ciao, Tony

On Jul 18, 2012, at 11:22 AM, triodes at optonline.net wrote:

> Hello Fellow TMC Enthusiasts!
>
> I am looking for a replacement TMC part no. TF-104 transformer.
>
> It is a potted filament transformer with a 115/230 VAC primary, and  
> a 6.3VAC CT at 4.125 A secondary winding. It was made for TMC by  
> the Berkshire Transformer Co., and the Berkshire part no. for this  
> transformer is 1708.
>
> I believe the TF-104 was used in numerous pieces of TMC equipment  
> yes with different symbols same spec sheet, with one example being  
> the A-1397 Power Supply for the SBE-series of SSB/ISB exciters.  
> Based on the low numeric (104) of the part number, my guess is this  
> transformer was used in TMC equipment that may go back to the very  
> early days of the company, circa 1952 or so, which would  
> signifcantly pre-date it's usage in the A-1397 and SBE series.
>
> Can anyone help me with obtaining a replacement?
>
> Thanks & 73,
>
> Bruce, W2XR
>

Tony Faiola
faiola at ieee.org