For your setup I'd use the AS1T230 you originally chose. I believe it's R12 on the all in one board where you can adjust the value to get the B+ where you want it. This transformer gives you more overhead and more options down the road.
If you haven't already you should download and get familiar with PSUDII - I've found it to be an invaluable tool in designing HV supplies.
If you haven't already you should download and get familiar with PSUDII - I've found it to be an invaluable tool in designing HV supplies.
My tubes are arriving today so now I think it is good to get your ideas about tube care.
I have two children that can't help but poke at things.
For this reason I have an IEC jack with an on off switch and the on off switch on the front of the chassis.
BUT.....Tube cleaning wise, many people recommend 96+% Iso Alcohol, no rubbing alcohol.
What I was wondering is, what about Denatured Alcohol or Acetone? I have plenty of it that I use to clean circuit boards. Is it ok for tubes?
If not I will just go to the pharmacy and pick up some 99% Iso Alcohol.
I have two children that can't help but poke at things.
For this reason I have an IEC jack with an on off switch and the on off switch on the front of the chassis.
BUT.....Tube cleaning wise, many people recommend 96+% Iso Alcohol, no rubbing alcohol.
What I was wondering is, what about Denatured Alcohol or Acetone? I have plenty of it that I use to clean circuit boards. Is it ok for tubes?
If not I will just go to the pharmacy and pick up some 99% Iso Alcohol.
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On my LM4780's I used RG142 silver plated dual shield for my input wiring.
On my Aikido I am planning to use RG316 silver plated dual shield for input and output wiring.
I have zero problems with noise on my LM4780's, if I do have any it is source noise from a crappy recording.
I recently dragged them over to my friends house and borrowed his SL1000 MK2 w/ ext. preamp; I was very pleased with my amplifier performance even on VERY dynamic passages.
On my Aikido I am planning to use RG316 silver plated dual shield for input and output wiring.
I have zero problems with noise on my LM4780's, if I do have any it is source noise from a crappy recording.
I recently dragged them over to my friends house and borrowed his SL1000 MK2 w/ ext. preamp; I was very pleased with my amplifier performance even on VERY dynamic passages.
Actually it's not very hard to make a dead silent Aikido preamp..as long as you don't make any major mistakes it will end up like that. I've even made silent Aikidos with AC heaters.
Why? Well usually inputs are from CD level sources, 2V. And the output is higher. This is much higher than the old days with phono cartridges that produce 50mV or even 5mV, and people got decent performance from less noisy circuits than Aikido.
So, if you have any noise, something is wrong. Also be sure to do as cjkpkg did and twist all your wires.
Why? Well usually inputs are from CD level sources, 2V. And the output is higher. This is much higher than the old days with phono cartridges that produce 50mV or even 5mV, and people got decent performance from less noisy circuits than Aikido.
So, if you have any noise, something is wrong. Also be sure to do as cjkpkg did and twist all your wires.
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