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FDP Forum / Amp Mods, Repairs, and Projects / What's considered to be the best Bassman circuit for guitar?

Roly
Contributing Member
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Whitehorse Canada

I don't get out much
Jun 12th, 2018 08:58 PM   Edit   Profile  

Not asking about the pre 1963 options.
I have a 69 Bassman here.
Transformers date to 68.
It has a drip edge cab but no black line faceplate.
A mix and match of skinny cloth covered wire and plastic covered wire. A lot like my 68 Super Reverb.
Sticker says AB 165...that's not correct.
I think it's an AC 568.

Any advice about what to leave alone, and what to change?
cheers


pdf64

UK

Jun 13th, 2018 07:41 AM   Edit   Profile  

It would be good to verify that it really is AC568.
See the tone lizard link for analysis and some ideas. Don't take it as gospel though, some folks love that 3rd gain stage etc as it is.
Personally I've no experience of any type of BF Bassman.

It may be worth considering using it as a platform for a Trainwreck Express.

Best to get it working right first though, before planning mods

External link

ejm

usa

Jun 13th, 2018 09:58 AM   Edit   Profile  

pdf64: I discovered the Tone Lizard Lounge more than a few years ago.
There are many useful and informative articles in there.
The ones that I picked up a lot from were the Marshall mod one (The ultimate JCM800) and another whose name escapes me. It had a lot of generic mods mostly based around Fenders.


FDP Forum / Amp Mods, Repairs, and Projects / What's considered to be the best Bassman circuit for guitar?




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