Mains Voltage here is ~240VAC.
There are several avaible, D55-449M Fuji Electric Co Ltd, 3.55KVA for $120 each.
The primary is 240vac with several tappings.
The lowest possable sec voltage is a taped 36vac, I was thinking of using two transformers, one for each rail.
I am guessing the highest possable sec voltage is probably no more than 40vac, possably still too low to give me much power.
They only weigh 19kg, is that a bad thing?
There are several avaible, D55-449M Fuji Electric Co Ltd, 3.55KVA for $120 each.
The primary is 240vac with several tappings.
The lowest possable sec voltage is a taped 36vac, I was thinking of using two transformers, one for each rail.
I am guessing the highest possable sec voltage is probably no more than 40vac, possably still too low to give me much power.
They only weigh 19kg, is that a bad thing?
Hi Svetlana,
you could parallel two 40 volt windings and use them as plus minus 20 volt rails and just ground the centre where they meet.
I think you need resistors in series to ground though to keep the rails the same?
With 6 amps bias that should give abut 120watts class A and dissipate close to 300 watts per channel
BTW are there any more of these, im slowly getting bits together for my aleph-X. A company name or phone number of who is selling these would be nice
cheers arthur
you could parallel two 40 volt windings and use them as plus minus 20 volt rails and just ground the centre where they meet.
I think you need resistors in series to ground though to keep the rails the same?
With 6 amps bias that should give abut 120watts class A and dissipate close to 300 watts per channel
BTW are there any more of these, im slowly getting bits together for my aleph-X. A company name or phone number of who is selling these would be nice
cheers arthur
" So whats the highest safest voltage I can run these parts..maybe 1/3 of their stated voltage ratings? maybe a half? why cant I run them at their full 60 volts?"
Max rating, less 10%, divide by two.
60V - 10% = 54V / 2 = ±27V rails.
Visualize a positive clip. The negative transistor will have the sum of the positive and the negative rail voltage across itself.
Max rating, less 10%, divide by two.
60V - 10% = 54V / 2 = ±27V rails.
Visualize a positive clip. The negative transistor will have the sum of the positive and the negative rail voltage across itself.
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