Its not much use for high quality audio I'm afraid. Fun to have a play with though:
https://en.wikipedia.org/wiki/Constant-voltage_speaker_system
https://en.wikipedia.org/wiki/Constant-voltage_speaker_system
Folks, I have a transformer I scrapped from an old console radio. Unfortunately, I wasn't able to get a model number for the radio and all I have is the transformer. I can't seem to find the details online so im hoping someone can help me identify or give me info on how to test it.
Images attached below. It looks like a very well made transformer so I would like to identify and store it for a later project maybe. I've been taking apart a lot of old audio equipment from console radios and saving era specific hardware for projects. I love the older wire that's wrapped with a weaved fabric.
Any help would be appreciate, if there is already a thread that covers this, please point me to it.
Its from a Zenith unit - 95-XXXX is the part numbering scheme for all Zenith transformers and flybacks. Today, LGE (Zenith's parent) adds a "0" to the 95- prefix for ordering.
Zenith 95- transformer | eBay
I believe this is true. Now if only I could find out what era its from and what color coding they used back then for wiring. Or a schematic.. That would be nice too..
2nd row is EIA number and date code - 524=Triwec Transformers of Chicago and 7504= 4th week of 1975.
Gray/Red gray=Primary
Green/Green/yellow is a filament or low voltage winding
Red-red/yellow-Red is a center tapped B+ winding
Pretty standard EIA color codes used by Zenith and others.
My guess is it's from a Solid state Black and White TV. At that time, most Zenith Color sets had a Ferro-resonant supply with about 5 or six independent windings, so it isn't for a color set.
Zenith Allegro stereos (wedge and others...) of that era had a similar transformer. Two low voltage windings - one for pilot lamps and one for the unit B+ - see if HiFiEngine has a Zenith Allegro manual....
Fantastic, you are the man!! Yes, I know for sure that this xfrmr came from a stereo. I will look.
I'd start with Zenith HF-30 and HF-31 service manuals - 1974 and 1975 model years.
You might want to bug an eBay seller with a narrative that you are unsure if the manual covers your unit - give him the 95- number (model number missing.....😉 ) and see if he/she can find it in the HF-30 or HF-31, and then bingo!
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