Page 1 of 1

Amp tech question

Posted: Tue Nov 25, 2008 2:03 am
by Will
I'm looking to convert the 6.3V heater supply in my Champ 12 to DC in order to cut down on ambient hum. From what I've seen so far, all I should have to do is add a small bridge rectifier and filter cap. A 1000uf/25v cap should work fine, but what type of diode should I use? Would the standard Radio Shack 1Amp Rectifier diodes work OK?

Here is the schematic if it makes a difference:
http://www.ampwares.com/schematics/champ_12.pdf

Posted: Thu Nov 27, 2008 2:10 am
by punch
Is it really that bad or is this a boredom thing? I don't have a great answer other than check out "the real mctube" it's a tube distortion pedal with instructions online that I made and it has a couple rectification circuits one of which is similair to what you're describing (I think). It should list the values for you. I got the diodes I needed from rat shack. Just make sure you make safety precautions before you mess with a tube amp. Anyone got a better a better answer for him?

Posted: Thu Nov 27, 2008 2:12 am
by punch
Is it really that bad or is this a boredom thing? I don't have a great answer other than check out "the real mctube" it's a tube distortion pedal with instructions online that I made and it has a couple rectification circuits one of which is similair to what you're describing (I think). It should list the values for you. I got the diodes I needed from rat shack. Just make sure you make safety precautions before you mess with a tube amp. Anyone got a better a better answer for him?

Posted: Thu Nov 27, 2008 2:17 am
by Reece
How did you double post 2 minutes apart?

Posted: Thu Nov 27, 2008 9:14 am
by Bacchus
Really slow server/connection probably. It's happened me before. I'll hit submit, and nothing happens. I hit it again two minutes later, and have double posted, two minutes apart.

Posted: Fri Nov 28, 2008 5:17 am
by punch
I dont know. But it keeps happening to me. My computer is old. Like pretending not to like strats old. And that's pretty fucking old.

Posted: Fri Nov 28, 2008 10:04 am
by timhulio
Zing!

I like Strats, but I just haven't met the right one. Maybe I'm telesexual.