Source for Transformer

[Valvehead]

I need a Marshall power trans for a 9000 series power amp. This is a dual mono 50w amp (el34) .

Anyone know a source for this? or does anyone like Hammond make a dual mono trans like this ?

[soundguruman]

did you already check a Marshall dealer to order a replacement?
not that there is any for sure...but check.
or call these guys. I feel that they may come up with something:
Info@MercuryMagnetics.com • www.MercuryMagnetics.com(818) 998-7791
and MM may make a stacked replacement for you

[Dave Curtis, dB AudioTech]

soundguruman: and MM may make a stacked replacement for you

And you'll probably pay 2 or 3 times what that amp is worth for them to do it.

Stacked? I'd be really surprised if it has dual secondary windings.

Valvehead, have you tried marshallparts.com? (Parts is Parts)

Marshall Transformers | Guitar, Amplifier, and Korg Keyboard Parts | NATIONAL PARTS DISTRIBUTOR FOR KORG, VOX, BLACKSTAR. PARTS FOR FENDER, GIBSON, GRETSCH, HOFNER, SWR, GUILD, AND MUCH MORE
If you don't see it, call them. 800-590-0014

[g1]

From what I recall the power supply was common to both sides of that amp, so nothing "dual" about the PT.

[Valvehead]

hmmm...so why couldnt a 100w Marshall power trans be used if i cant find this exact one

[Valvehead]

and sure enough..........this trans has been discontinued...they dont sell a replacement


scem =
only shows 1 power amp

http://www.drtube.com/schematics/marshall/9005.gif


waiting on batteries to charge and i will post a pic of the trans secondary

[Valvehead]

ok...heres a pic ..secondary on the bottom , left to right ...

left to right, we have :

1 to heaters

2 to ground

3 to heaters

4 to standby sw ch. A

5 to rectifiers ch A

6 to standyby sw ch B

7 to rectifiers ch B

[g1]

Some pricey replacements:
Mercury Magnetics - Marshall amp transformers (MAR-9005-P about half-way down page)
Mains transf. for Marshall MGP 9005 Rack Power Amp 50+50W - Mains Transf. for Marshall

[g1]

So it does have separate HV windings for the two sides of the amp. Sorry for the error, memory does not always serve.

[Valvehead]

thats what it looks like to me ..

[acorkos]

mercury does carry a drop-in replacement...$365


PT MAR-9005-P Model 9005 50/50 Rack mount power amp -- Upgrade! 365.00

[Valvehead]

$365..........that right there is comedy . WOW.

for the record , I will never by a Mercury over priced snake oil fancy transformer.

Ive had a few people hire me to put in MM trannys in their amps.....I heard no difference , and none of them did either. Snake oil = tube amp style.

[g1]

After exchange and shipping I don't suppose the one from TAD is much cheaper: Mains transf. for Marshall MGP 9005 Rack Power Amp 50+50W - Mains Transf. for Marshall

[Valvehead]

yikes...

i did email Hammnod to see if they have anything-havent heard back yet