Pepco Paul Combo - Anyone have a schematic or more info?

[sohosteve]

Iso transformer?

Hey Vintagekiki
I wonder if you could help me?
I see you've done a mod adding an iso transformer to a Paul 201 combo and wondered what transformer you used and where you bought it from?
Another member here suggested trying this one
http://uk.mouser.com/ProductDetail/T...Ps07VYQMnV5cIl
But another member suggested that it may overheat...
Do you think it would do the job (I'm not an electronics guy but I will be handing over to a qualified tech to mod) but I'm trying to save him time (and consequently me money!) by sourcing as much info and the relevant parts for the job.
I'm in the UK so I'll be needing a 240v - 110v tranny anyway - am I right in thinking that I'd be able to use this straight from UK mains once installed?
thanks
Steve

http://www.guitarscanada.com/showthread.php?29848-Vintage-Pine-Electronics-Amp-with-My-Name-On-It!
Vintage Pine Electronics Amp with My Name On It! - "Paul" 201 - Repair/Advice

http://pepcotubeamps.blogspot.com/
Pepco tube amps

http://pepcotubeamps.blogspot.com/search/label/schematics
801 chassis model schematics

http://pepco201.blogspot.com/
Paul ( Pepco ) 201 Chassis Isolation

[ATTACH=CONFIG]24433[/ATTACH]

[audiopete]

Hi, that Triad N-68X will work just fine for your Pepco. I have a few Pine Pepcos (so I am familiar with them) and actually have used this iso transformer in a Garnet made Pan stencil amp with 50C5 power tube. It has been running fine for years. You need to mind orientation to prevent electric 60Hz hum. If it hums, try turning 90 degrees on axis. You need to wire the primary winding in series for 240V operation. This will provide 120V operation for the amp (which it was designed for) Good luck. Here is the datasheet: http://www.mouser.com/ds/2/410/N-68X-223861.pdf

[sohosteve]

Thanks Pete,
It's just arrived.
I don't know how to read a schematic though so no idea how to wire it in series for 240v.
I can use a soldering iron and have modded a few FX pedals but a bit nervous around the insides of vintage valve amps and the potential lethal voltages so I guess I'd be sensible handing it to a qualified tech..
Thanks to all here for your help and advice - have a great weekend!

[audiopete]

Good luck. Dealing with the voltages takes some knowledge and some courage (and some stupidity? Please post how it all works out.

[sohosteve]

Hey there
I wonder if anyone could help me with some graphic instructions to make my Pepco Paul 201 safe to use?
It's one of those 'hot string amps' that's lacking a mains transformer.
I'm not an electronics guy - can't even read a schematic - though I did just manage to successfully perform the way more complicated job of modifying my Fender Blues Deluxe using the excellent Fromel kit. Which involved swapping out all the major caps, various resistors, power transistors, reverb mod, tone stack mod etc etc.
Anyway, I now have the Triad N-68X Isolation transformer from Mouser so I just need leading in the right direction regarding which wires attach to which terminals etc
As I'm UK based I will be using it with 240v mains power supply.
Any help gratefully received.
I can upload high res gut shots of the amp if required.
Thanks
Steve

[bobloblaws]

You need to wire the primary winding in series for 240V operation. This will provide 120V operation for the amp (which it was designed for)

Old thread, but can you expound? I installed a Triad N-51X in one of these amps and I'm fixing to do an other one with the N-68X this time due to the higher VA rating and planned to use the 115V winding as I did previously. The N-51X doesn't even have the 230V option and that amp works just fine so I'm confused.

[g1]

That was a bit awkwardly written. He should have said "this will provide the proper voltages at the secondary".
He was talking to someone in the UK with 240V mains.

[bobloblaws]

That was a bit awkwardly written. He should have said "this will provide the proper voltages at the secondary".
He was talking to someone in the UK with 240V mains.

Ahhhh, OK, missed that. Thanks!