Marshall 1987x 5881 model output transformer

[diydidi]

I have this Marshall 1987x head for repair. It is the 5881 model.
Someone removed the output transformer and I have no idea as to the specs of the original transformer.
Anyone have an idea what the transformer part number is and the specs??
Thank you!!!

[Jon Snell]

The part number is C3070.

[Pedro Vecino]

II think the C3070 is the 100 watt OT of the JCM900 and 2000 series.
The 1987 reissue must be D2507 (also Dagnall).

[drewl]

No reason you can't replace it with one for EL34's.

[J M Fahey]

In principle the "tech spec" to find it is simply "Marshall 50W OT"
Youīll find a few original ones if itīs important and many "second source" ones, most of them very good.

Itīs such a standard generic product that searching for it that way will be faster than mentioning impedance or other parameters, go figure.

[Jazz P Bass]

https://www.ebay.com/itm/MARSHALL-OU...sAAOSw7Hhcp3HW

[g1]

No reason you can't replace it with one for EL34's.

That is one for EL34s. They use the same one for 5881 version. All the marshalls I know of that have an EL34 as well as 5881 version, they always use the same OT.
But I think your point is that any generic marshall OT for 50W will work there, and I agree.