Just throwing this up on the off chance that someone may find this beast useful. This is a transformer I bought as a backup for a Marshall model 2001 bass amp. That's the one with eight (8) 6550s. I sold the amp a while back and the buyer said he wanted the spare, but I've lost touch with the gent. I don't know much about it. Bought it off of ebay where it was listed as a NOS item. The gents over on the vintage amps forum seemed to think it was as advertised. It weighs a ton, so I'll offer it at $125 shipped in the US of A.