The more I think about this, the more I think building the amp without the choke is a very bad idea.
The premise of the amp was to have very simple circuitry by using the output stage as a phase splitter. So far, so good.
However, the change drastically reduced the power supply rejection ratio. No problem, we add a CLC choke filter, and add a tuning cap to notch out the 120 Hz. Or we add a regulated supply. Designer chose the CLC for simplicity.
Going to CRC will require:
A regulated supply.
Much more Capacitance in the supply.
A "proper" front end with phase splitter.
An input transformer phase splitter.
Just my 2 cents.
Doug
The premise of the amp was to have very simple circuitry by using the output stage as a phase splitter. So far, so good.
However, the change drastically reduced the power supply rejection ratio. No problem, we add a CLC choke filter, and add a tuning cap to notch out the 120 Hz. Or we add a regulated supply. Designer chose the CLC for simplicity.
Going to CRC will require:
A regulated supply.
Much more Capacitance in the supply.
A "proper" front end with phase splitter.
An input transformer phase splitter.
Just my 2 cents.
Doug
well I have bought the parts and was hopping to build this using what I have. It doesn't have to be perfect, it just has to work ok. Will this same amp work using the same schematic but with a CRC PS? Will it work with using the outputs trans. I have in pentode? If so I really need to know this. If not I need a schematic for an amp I can build with what I have already bought and have on hand.
My advice to you is to try it and report back.
Everything you have purchased is usable.
If I am wrong, I apologize in advance.
If I am right, someone on the board may be able to suggest an inexpensive change.
I have a EE degree, I have studied a lot for the last 3 years, but haven't built much. Therefore, I do not consider myself an "expert" or the last word. Hopefully, one of the guru's will chime in with a second opinion.
Good luck with your project.
Doug
Everything you have purchased is usable.
If I am wrong, I apologize in advance.
If I am right, someone on the board may be able to suggest an inexpensive change.
I have a EE degree, I have studied a lot for the last 3 years, but haven't built much. Therefore, I do not consider myself an "expert" or the last word. Hopefully, one of the guru's will chime in with a second opinion.
Good luck with your project.
Doug
If my OPT were bad would these work as a replacement?
http://store.triodestore.com/tf65wscta48o.html
If not what would work?
http://store.triodestore.com/tf65wscta48o.html
If not what would work?
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