NAP250 amp boards & regulator boards

[Bigun]

You have the 110, why not ‘simply’ add regulators to that? Or was that what you woz sayin?

 

[StevenCrook]

You have the 110, why not ‘simply’ add regulators to that? Or was that what you woz sayin?

Nah, don't want to mess with the 110 in any way. So complete new amp is the plan.

 

[jpk73]

I can see if I have some PCBs left over. You can PM me about that!

 

[jpk73]

Attached pictures of my actual files, still some boards available...

 

[jpk73]

...also I have some preamp PCBs available, information about them you can find here:

 

[lohk]

I am really interested in the preamp board.

 

[jpk73]

You have PM!

 

[mdardeniz]

On Avondale's amplifier there is a series diode and resistor to drop voltage/noise. Why don't we use series zener for drop voltage. Is there any problem with zener like adds noise or something. Perhaps, does 1w zener can be good?
I want to drop 40v voltage 34v for pre part of amplifier.