Mercury transformers, stock? (pics)

Sorry if this is a dumb question, but upon taking apart my DC-5 out of pure curiosity I found a pleasant surprise, or at least what could be one - a Mercury Magnetics output transformer! Before I get too excited, though - were Mesas ever built with MM's from the factory? This amp had been modded before (solo boost and volume taper also pictured below) so I figured maybe this had been done as well if it is in fact, an aftermarket part. Any info is appreciated. Thanks!

The MM OT:



Volume taper job already done:


Solo boost replacement for the slave:

We have never built an amp using MM transformers. Thanks!

Doesn't get any clearer than that. Thank you!

That's expensive iron! I'll bet those transformers cost more than my DC-3. And the Thiele cab that came with it!

http://www.classictone.net/Marshall-Style-Transformers.html

Classic tone transformer seems to have a real classic build with paper layer, as real vintage ones

but witch one would be good for a dc5 ? don't know

Never seen this DC mod. Anyone have any info? Seems a much better use for that very unused (on mine anyway) slave jack & I'm assuming pot also.

Solo boost replacement for the slave:
[/quote]

:mrgreen: :mrgreen: :mrgreen: I know who did it........