• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

6V6 line preamp

well..I do have a toroid that I can use...

AS1T230
Electrical Characteristics
Outputs 4x
Power 100VA
Output Voltage Current
230V 0.22A
230V 0.22A
6.3V 3A
6.3V 3A

Keeping the choke load and dropping the resistors to 560 looks like I can still get there right?
 

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perookinfect!

47uF after choke means that rectifier isn't jeopardized with induced peaks .......

this solution can be almost on par with best solution - choke input filter+shunt reg :clown: , but we are here slightly short in voltage for that ....

halfen R1 and you've got 20-25 V to shunt, but I dont think it will be audible. Just over a mV already...
 
main difference is bidirectional nature of shunt reg

it doesn't mean much when we think of it - God ! , that stage is A class anyway ! , but when you put proper shunt reg , there is always difference in sound

positive , for these old ears

:clown:

edit - maybe - as solution for including the reg - is to leave intact just LC , toss everything after , and connect reg .

1440x0,046 will probably be enough of overhead
 
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OK Gentlemen!!!!

I have SILENCE!!!!

Here is the PSU I whacked up tonight....It is DEAD SILENT now...ear to the tweeter silent. I tried the bridge with the allied xformer and the caps started to sizzle so I shut it down immediately. Have not tried the toroid yet since the first C in the setup is only good for 400V...I placed an order with Mouser today to breadbord up a proper PSU for it and use the PS1 for something else.

Thank you all for ideas and support here...this one was very frustrating...Salas, my friend, you called it from day one...CLCRC works magic on my setup.
 

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Whats your power amp? Glad you got it worked out. This forum is a shining example of the positive ways on wgich the internet can influence our lives. Where else would you find so much help fromso many experienced people. :cheers: Great lesson as usual fellas!
 
Right now it is the Moskido...aikido front end into a MOSFET power stage...class A inefficient as hell but sounds divine.

and yes...this is THE most helpful forum for diy stuff with people actually HELPING and not criticizing...except when it is REALLY deserved...
 
Told ya it was racket with the PS-1 reg for some reason.😉 Since you are gear-less to analyze so we could help you combat that, you are better off with passive filter cells. Congrats for you got music finally.
 
Congrats :cheers: even if I dont quite understand what PSU you really are listening to but anyway here



is a solution good for 800 volts as first cap if you dont want to wait for Mouser and DHL. Gives you a healthy bleeder as bonus.

Counts as 47 uF

Best
Staffan
 
So, this is the PS1 HV schematic, and how I temporarily modified it...sorry for the crude paint like image but I think you will get the idea.

I will get a breadboard this weekend and yank you the PS1 PCB.
 

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Yes, listened for a few hours and it sounded wonderful.

I am using the Russian 6P6S got a great price on a matched pair on "the bay".

I will pull out the broskie PSU and whip up this new PSU and hopefully put it all back together this weekend.

I think I have a 500V 47uF kicking around but I did not order one from Mouser yesterday...I still may play with which xformer to use which will dictate the rectifier style.

After 4 hours the little Allied xformer was pretty warm but not "hot". It is probably working pretty close to the limit though. I would prefer to use the toroid if I can, the heater winding has more headroom too.