Trying to ID a transformer

[OldSubSailor]

I was working though a tote of HV transformers I've had around for a while and came across one that, per the note I'd taped to it years ago, was removed from an old HAM transceiver. It's a large, heavy beast whose leads are typical for a power supply transformer .

On the case are the numbers 95-1353 and under that 138328. Here's where it got interesting. I did a google search and among the hits was an A-K discussion thread from back in 2005 wherein someone said they believed it to be a power transformer from a DYNACO A440, which was a very early mono amp.

Can anyone point me to a spec sheet, including (hopefully) the color codes for the winding leads?

Thanks in advance.

 

[mbz]

Maybe try a resistance check/ohmmeter to identify the pairs. Possibly the higher voltages means more turns means higher
resistance, see if the pairing fits into that idea...

 

[OldSubSailor]

Maybe try a resistance check/ohmmeter to identify the pairs. Possibly the higher voltages means more turns means higher
resistance, see if the pairing fits into that idea...

I already did that and yes it does. There is one interesting measurement. What appears to be the HV secondary (brown/red - brown/red) is 32 ohms. The center tap is brown/red dot. But the resistance to the two ends measure 15.6 ohms and 16.8 ohms. My best GUESS is that this is a somewhat lower voltage tap to provide B+ for some tubes (driver for an output stage or front end of a receiver?)

Other than that it appears to be a typical power trani with a primary and a couple low voltage ( 5 volt and 6 volt) secondaries.

This is why I'd like to find some specifications for this trani that includes the lead color codes.