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Vintage threads from the first ten years

Super Reverb and Pro Reverb

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10/22/1997 5:27 PM
D.B.	Super Reverb and Pro Reverb Why, if the schematics are so similar (virtually the same), is a SF Super Reverb so clean at high volume, yet a SF Pro Reverb breakup at half volume?

10/22/1997 7:09 PM
moocow	The schematics are the same, but the output transformers are not. The Super Reverb has a nice big "50 Watt" transformer, while the Pro has a smaller "35 Watt" transformer. The smaller transformer may be introducing distortion by restricting the amplifier's output.

10/23/1997 7:59 AM
John Martin	Just put a Bassman tranny in that Pro. (if clean is what you want) JM

10/23/1997 8:06 PM
Jeff	i wish everybody would stop fucking up (or recommending to) old Fender tube amps (unless, of course, you're doing S/F to B/F work). you want a bigger (Bassman) output trans to complement your reverb in a Pro Reverb? then sell the Pro Reverb, get a Bassman head and a reissue reverb tank and a 2-12" enclosure.

10/23/1997 8:14 PM

Jeff (more bitching...)

and another thing: the smaller output trans in a Pro Reverb will sound very LOUD and CLEAN if everything ahead of it is cleaned up (good tubes; proper bias; "blueprinted" circuitry), and if good, solid speakers are used. i've got a 76 S/F Pro Reverb that everybody THINKS has a Bassman output trans -- not so!!! stock transformer, and it kicks ass very loud and clean (even with lower plate voltage than it calls for).

10/24/1997 6:23 AM
Keith	Nobody would of brought this up if they hadn`t read it in Webers book about the cheezy output transformer in a Pro Reverb.

10/24/1997 7:40 AM
J Fletcher	I believe on this bulletin board you're allowed to swap output transformers,maybe not on some of the other ones.However,any Pro Rev I've played keeps up to a Super Rev.

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