839830
830 =Triad transformer
But the first three digits are 83
9, so it's not Triad.
Unfortunately, 839 isn't listed in the charts of EIA codes I looked at (not necessarily exhaustive). I know it's a transformer (or organ) manufacturer, as someone else here also has a PT with "839" as it's EIA code.
I have a couple sets of power/output transformers that were removed from old amps a few years ago. I think they came out of old organs but am not sure.
Your voltage measurements with ac applied to the 2 black wires (almost certainly the primary) will tell the tale.
The big lesson for everyone is:
Don't remove a transformer from a chassis without documenting how everything was connected, and preferably keep a schematic of the original amp with the transformer. Better yet, don't remove the transformer.
We all learn this the hard way... Some lump of iron in a box and no idea of how to use it. Most of the time, the transformer was ideally suited for the exact output stage it powered and often not much else. So it makes the most sense to use the transformer exactly the way it was used in the piece of gear it was taken from.
This is not intended to be mean... I learned the exact same lesson the hard way a few times over. Our mistake is thinking "it's a tube power transformer, so I can make a ______ with it, right?" A lot of times it's cheaper and faster to simply modify the original item into being a guitar amp, if such a change is even possible (and it may not depending on how exotic the item is you started with; I've got a bunch of tube o'scopes that won't be guitar amps without a stupid amount of work
).
Topic: mystery transformer set (Read 5033 times)