SF Super Bassman amp - Anyone know about these?

[Soiouz]

Just back from my usual tour of the vintage gear shops in Quebec City (lots of cheap stuff there as always) and I saw a silver face Fender SUPER BASSMAN head for sale.  Pristine shape.. Didn't get the chance to hear it. It's an impressive looking beast anyway, and was wondering if these are rare and how they sound? What's the difference with a plain BASSMAN head?

[Jay]

Ok, looked at the schematicand it looks to me like it's very close (so far as I can tell) a Bassman minus one gain stage plus two additional power tubes.  My guess not the greatest guitar amp due to the lack of the additional gain stage but would probably make a good bass amp for loud and mostly clean tube-y-ness.

[Soiouz]

Excellent info! Thanks Jay!!

[DB]

What did it look like?  A Dual Showman head without the reverb and vibrato?  I think I had one of these in the late 60s.

DB