I now have an AC-powered Freedom Amp on hand to measure. It appears that the transformer is putting out about 40VAC before it is rectified to about 54VDC. Since these were rated at 55W, I’m assuming the transformer is rated for 1A of current.
I also have a 2×10″ unit with reverb that came to me needing a small repair. This has two small transformers. I have not powered this one up yet, but will post an update if the transformers are putting out a different voltage than the single-speaker units.
Does anyone have a schematic for the reverb circuit? I purchased the Freedom Amp schematics from Ron Neely, but the reverb is not included on that document. It should be fairly easy to trace, but documentation is always nice.
I was able to get a schematic from ronsound, but as I suspected, there isn’t any information about the transformer used. I suspect that it is a common 60 VAC part, but would like to verify this for accuracy’s sake. If you don’t have the means to measure voltage, a close up picture of the transformer would be helpful if anyone is willing to take one of theirs.
Hello. I am converting a battery powered Freedom Amp to run on AC power. I was wondering if someone has an AC-powered unit and would be willing to measure the the transformer’s secondary voltage.
Are there any schematics available for the 70’s versions of these? I’ve emailed EHX, and they do not have any on hand.