1000 VA
I have build a bunch of stuff. I think a 1000 VA is fine, less and you cannot startup your big amps, and more is unnecessary because its not taking the startup transient, you start from zero and go slowly up.
here is a link, I think I bought one of these red dealies, but not one that they have now, about 1000 VA.
I have build a bunch of stuff. I think a 1000 VA is fine, less and you cannot startup your big amps, and more is unnecessary because its not taking the startup transient, you start from zero and go slowly up.
here is a link, I think I bought one of these red dealies, but not one that they have now, about 1000 VA.
Hi,
fit a bulb tester between the mains and the new project.
Test the transformer alone.
Add the PSU to the transformer and test again.
Add one amplifier channel with output bias set to near zero and test again.
Remove bulb tester and substitute soft start.
Increase bias and check voltages and temperatures throughout the amplifier.
Save up for a small Variac (2A to 3A @ 240Vac) does almost all other jobs that need a variable supply voltage. Is that equivalent to a 4A or 6A @ 120Vac?
fit a bulb tester between the mains and the new project.
Test the transformer alone.
Add the PSU to the transformer and test again.
Add one amplifier channel with output bias set to near zero and test again.
Remove bulb tester and substitute soft start.
Increase bias and check voltages and temperatures throughout the amplifier.
Save up for a small Variac (2A to 3A @ 240Vac) does almost all other jobs that need a variable supply voltage. Is that equivalent to a 4A or 6A @ 120Vac?
I bought a 1kva model
I couldn't find a 1kva initially. Which is odd, because I remember seeing them for sale at the usual websites.
Anyway, I found one at a tremendous price. Ted Weber (the guitar amp guru) has a tool site where I found the variac for 50 bucks!
http://amptechtools.com/variac.htm
I couldn't find a 1kva initially. Which is odd, because I remember seeing them for sale at the usual websites.
Anyway, I found one at a tremendous price. Ted Weber (the guitar amp guru) has a tool site where I found the variac for 50 bucks!
http://amptechtools.com/variac.htm
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