mattworld

Hi everybody,

I 'am new on this forum so i'll present me. My name is Matt and i'am from France, nears Saumur (hope you will understand my english).
I have buy a 2550 clone from Ceriatone without transformer and tube because i want to put better one.

The amp is this one : Ceriatone Amplification

And the layout : http://www.ceriatone.com/images/layo...50Chassis7.jpg

The problem is, i d'ont know what transformer to buy. On the picture i saw , they use JTm-45 tranformer ( Ceriatone Amplification).

So i search on this store : Mercury Magnetics - Marshall amp transformers

But they are not with the same voltage. On the ceriatone picture, the power tranformer use 3,5v and on mercutymagnetcis, they use 5V. Is it a problem ?

Do you know what type of transformer I can buy ?

thanks !

Matt

Marshall Amps

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jcmjmp

Usually, the 5v tap is for a rectifier tube, which does not exist on the Jubilee as it is solid state rectified.
The 3.15v is usually a center tapped, out of phase heater tap. When connected to each end of the heaters, it appears as 6.3v AC. This is what the jubilee uses.

A couple of months ago, I got Mercury Magnetics to make a clone of my Marshall 2550 power transformer. It will work on 230/240 or 120 v ac and you'd be getting a top notch PT that is modelled after a real jubilee PT. The only caveat is that it is a laydown PT, so you'll have to make a cutout in the chassis for it, which should be pretty easy.

The model/reference number is on the 3rd pic below.

This is what it looks like:

jcmjmp

I just took a closer look at the Ceriatone chassis and it appears as though they also use a laydown PT so you might be in luck. Worst case, if the opening is too smal you could do some minor adjustments or add an adjustment plate if the opening is too big.