Hello friends,
Wondering if someone could have information on this unit. See picture below. The only identification is the 77235 which I assume is a model number since it is the same on the two units I have.
No information about this on current Hammond catalog, but physically it looks like one of their "broadcast quality" units. Transformer is in sealed case, looks rather vintage from the ancient Hammond logo style.
The soldered pins strongly suggest dual windings, and winding pairs from each side are isolated from the other as you one would expect. Measurements are:
If people have links to catalog archives that would be good too; I found a 1965 and 1974 catalog but no other meaningful results. Hammond's series and model numbers don't seem to have changed much in time so there's a possibility that maybe an OEM job - I don't know the origin of the transformer.
Thanks in advance for any help
Wondering if someone could have information on this unit. See picture below. The only identification is the 77235 which I assume is a model number since it is the same on the two units I have.
No information about this on current Hammond catalog, but physically it looks like one of their "broadcast quality" units. Transformer is in sealed case, looks rather vintage from the ancient Hammond logo style.
The soldered pins strongly suggest dual windings, and winding pairs from each side are isolated from the other as you one would expect. Measurements are:
- Pins 1-4 : 59 DCR, 3.27H
- Pins 5-8 : 46 DCR, 3.3H
If people have links to catalog archives that would be good too; I found a 1965 and 1974 catalog but no other meaningful results. Hammond's series and model numbers don't seem to have changed much in time so there's a possibility that maybe an OEM job - I don't know the origin of the transformer.
Thanks in advance for any help
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You're the man! Thanks a lot.
Altough I wouldn't pay 430 bucks for that rusty pair... Down from 567$ ??? He's nuts.
The seller must have saved that datasheet a long time ago because it's nowhere to be found on Hammond's website.
Looking at the datasheet, that's basically an OEM version of their "broadcast series" 850GA line isolation signal transformer. Should make for a nice single-ended to balanced input trafo.
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