Fender Bassman Blackface Head

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sadbirthdays
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Fender Bassman Blackface Head

Post by sadbirthdays » Wed May 16, 2018 7:43 am

Has anybody ever tried putting a reverb tank in theirs?

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Horsefeather
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Re: Fender Bassman Blackface Head

Post by Horsefeather » Sat May 19, 2018 8:35 am

It takes more tubes to drive reverb so that's a major operation. Easier to just get a Twin Reverb and revoice it to Bassman specs, I reckon.

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marqueemoon
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Re: Fender Bassman Blackface Head

Post by marqueemoon » Sat May 19, 2018 9:35 am

That or get an outboard spring reverb unit.

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spiffy chap
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Re: Fender Bassman Blackface Head

Post by spiffy chap » Mon May 21, 2018 1:57 pm

I just use a reverb pedal or my RE201’s spring. Never had the desire to mod mine.

1966 Blackface Bassman

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Re: Fender Bassman Blackface Head

Post by spiffy chap » Mon May 21, 2018 1:57 pm

I just use a reverb pedal or my RE201’s spring. Never had the desire to mod mine.

1966 Blackface Bassman

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muchxs
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Re: Fender Bassman Blackface Head

Post by muchxs » Mon May 21, 2018 3:57 pm

You're trying to make a cat do dog tricks.

Fender style tube driven reverb requires both sections of a 12AT7 for the drive side, a small driver transformer then 1/2 of a 12AX7 on the recovery side.

It could be done if you were willing to assimilate one of the channels for the reverb circuit. Still, it's a vintage amp and kinda rude to modify it.

Modifying a vintage Fender usually kills any resale value it might have had.

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Re: Fender Bassman Blackface Head

Post by mbene085 » Mon May 21, 2018 5:21 pm

muchxs wrote:
Mon May 21, 2018 3:57 pm
You're trying to make a cat do dog tricks.

Fender style tube driven reverb requires both sections of a 12AT7 for the drive side, a small driver transformer then 1/2 of a 12AX7 on the recovery side.

It could be done if you were willing to assimilate one of the channels for the reverb circuit. Still, it's a vintage amp and kinda rude to modify it.

Modifying a vintage Fender usually kills any resale value it might have had.
Yeah, this is how I feel about it.

If you found a Bassman that was in complete need of a rebuild, like a flood-damaged one or something, then sure, mod away. But at that point, why not just buy a kit and experiment on a new build instead?

Mucking with a perfectly functional blackface amp just seems sacrilegious.

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Re: Fender Bassman Blackface Head

Post by Igorilla » Thu May 24, 2018 12:53 am

mbene085 wrote:
Mon May 21, 2018 5:21 pm
muchxs wrote:
Mon May 21, 2018 3:57 pm
You're trying to make a cat do dog tricks.

Fender style tube driven reverb requires both sections of a 12AT7 for the drive side, a small driver transformer then 1/2 of a 12AX7 on the recovery side.

It could be done if you were willing to assimilate one of the channels for the reverb circuit. Still, it's a vintage amp and kinda rude to modify it.

Modifying a vintage Fender usually kills any resale value it might have had.
Yeah, this is how I feel about it.

If you found a Bassman that was in complete need of a rebuild, like a flood-damaged one or something, then sure, mod away. But at that point, why not just buy a kit and experiment on a new build instead?

Mucking with a perfectly functional blackface amp just seems sacrilegious.
+1

Besides being a major surgery circuit-wise you'll still have to deal with the ptoblem of hum caused by a pretty small head cab if you decide to install the reverb pan into the head cab. The transformes will be very close to reverb pan's transducers (hum city!). There is good reason why the piggy-back amps with reverb, like bandmaster reverb and showman reverb, have quite big head cabs.

A good solution, if you don't want a tube driven outboard reverb unit, is a SurfyBear Reverb kit. Install the reverb pan under your pedal board, put the circuit board in a small hammond enclosure, connect and you are done. This is going to give you a real spring reverb with a lot of adjustability.

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