Mr Evil's Capacitance Multiplier Power Supply PCB

[PMI]

Hi Pete,

I have assembled a new CP using the parts you listed below except I used MUR860G for the diodes. For some reason, I can't seem to get it to adjust the voltage. Are there some resistor changes that need to be made as well?

Thanks, Terry

Not as far as I know, but if you suspect that kind of problem, try it at a lower voltage using your Variac to adjust the line voltage.

 

[kp93300]

Hi Pete,
I wish to buy 2 boards of the cap muliplier.
Any stocks?

thanks
kp93300

 

[BigE]

I would like to get 4 boards please!

 

[K.A.B]

Hello Pete,

I found that I need more boards put up me on 3 more.

Regards
Anders

 

[muskyhuntr]

Is this still a go?

 

[marcus1]

Is this still a go?

I'm interested in a couple as well if their available.
Thanks

 

[Bangla H]

Hallo Peter and all other DIY'er
I'm also interested to order and buy a 2 Set of Boards to finnish my SonnyA TSSA Amps.
There avaiable plaese some Info.
To all best Regards to lucky Start up to 2014.
Thanks.

 

[shattered_dream]

Hmm are these okay for the F5 amp?
One per channel?

Gesendet von meinem SGPT12 mit Tapatalk 2

 

[mr-mouse]

2 more

And 2 boards for me thanks..

 

[ymwong]

I would like to have 6 boards please.

Thanks.

 

[sysco55]

I would like 2 boards please.

 

[shattered_dream]

I would like to order 2 boards if there are some available

Gesendet von meinem SGPT12 mit Tapatalk 2

 

[Rick G]

Terry,
Did you ever get this figured out.? i have 2 CP that won't adj. either although i used all orig. parts except 15K caps for C1 & C2.

"I have assembled a new CP using the parts you listed below except I used MUR860G for the diodes. For some reason, I can't seem to get it to adjust the voltage. Are there some resistor changes that need to be made as well?"

 

[still4given]

Yes. The problem was that I used KSC1845/KSA992 for the BJT's. They have and ECB pinout. The boards are designed for BC550/BC560 so the pinout is CBE. I swapped those out and it is working perfectly.

 

[nautibuoy]

Pencil me in for two boards please.

Ray

 

[Rick G]

Yes. The problem was that I used KSC1845/KSA992 for the BJT's. They have and ECB pinout. The boards are designed for BC550/BC560 so the pinout is CBE. I swapped those out and it is working perfectly.

AH,
Well, guess i need to do some more investigating then.
Nothing obvious yet.

 

[Earthquake]

I'll take 6 if and when they become avaiable.

 

[still4given]

AH,
Well, guess i need to do some more investigating then.
Nothing obvious yet.

What rail voltage are you running. I could probably post a schematic with voltages at each transistor if that would help you.

Blessings, Terry

 

[Rick G]

Terry,
Thank You, that would be a big help.
I am running +- 43.7 at the fuse.The first 3 i built came up & adj. with no load. This last one & my etched version of his Single Layer won't adj.

 

[still4given]

Terry,
Thank You, that would be a big help.
I am running +- 43.7 at the fuse.The first 3 i built came up & adj. with no load. This last one & my etched version of his Single Layer won't adj.

Hi Rick,

Here is a schematic with the voltages I read with the PSU set to +-43.6 at the fuses and the output set to approximately +-43.2 with no load on it. Hope this helps.