Hello,
I had modified 100v line amplifier for low impedance load (There is a thread in PA section).
It`s a single channel push pull amp with two MJ11016 transistors and it needs transformer (toroid with no labels) to work.
Rail voltage is 39v dc, only positive and toroid is rated for 100VA.
I had connected 3ohm load to it (pair of 6ohm Pioneer CS-770 speakers) and it plays good. It has a fan that didn`t turn on in 4 hours of listeting to music with volume at half.
146w rms and 292w peak measured.
Now my question is how can I know what is the lowest impedance load that I can connect to it?
I think that if there would be no output transformer, I would need to measure the current and see if transistors can handle it, but what is the case with output transformer? Do I need to measure current before the transformer and see if transistors can handle it and after the transformer and make sure that transformer can handle it?
Thank you
I had modified 100v line amplifier for low impedance load (There is a thread in PA section).
It`s a single channel push pull amp with two MJ11016 transistors and it needs transformer (toroid with no labels) to work.
Rail voltage is 39v dc, only positive and toroid is rated for 100VA.
I had connected 3ohm load to it (pair of 6ohm Pioneer CS-770 speakers) and it plays good. It has a fan that didn`t turn on in 4 hours of listeting to music with volume at half.
146w rms and 292w peak measured.
Now my question is how can I know what is the lowest impedance load that I can connect to it?
I think that if there would be no output transformer, I would need to measure the current and see if transistors can handle it, but what is the case with output transformer? Do I need to measure current before the transformer and see if transistors can handle it and after the transformer and make sure that transformer can handle it?
Thank you