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68 Bandmaster info wanted..

FuzzWas

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Apr 13, 2003
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I just found a Bandmaster for cheap and I am wondering what other fender amps use the same circuit design. I know some share circuits but I don't know about this one, and I don't know the exact circuit name either.

I went to ampwares and they list both AB568 and AA1069. But I am pretty sure 68 is considered blackline or something...can't remeber.

I got it off ebay so we'll have to wait and see what it's really like when it get's hear.

Nothing else to add, so if you have a bandmaster and want to add your opinions that would be nice.;)

Pics welcomed too!
 

Kiwi

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Jul 31, 2002
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Free advice -

When it arrives, before you even plug it in....

Pull the power fuse and check its rating against the spec printed on the back of the amp. If the fuse is rated higher, immediately replace it with the correct one.

Reasons:

1) A pal learned the hard way that the previous owner of his new mid-70s Marshall JMP Mk II had put a 4-amp fuse in its 2-amp circuit. When it finally blew, it took the tranny with it.

2) I just got a BF Bandmaster, all original, 1967 ... and the previous owner had put a 3-amp fuse in there, where it specified a 2-amp fuse, to protect a 1.5 amp circuit.

On to happier topics. There are many online resources to dating the chassis and transformer for your new-old amp. Welcome to classic-amp ownership!

Kiwi
 

FuzzWas

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Apr 13, 2003
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Kiwi - that is supreme advise! Thank you very much.

That is something I never thought to check and will from now on. Your friend must have gotten sick from that incodent.

I can't wait to have a pet bandmaster though.:lolspin
 

Kiwi

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FuzzWas said:
Kiwi - that is supreme advise! Thank you very much.

That is something I never thought to check and will from now on. Your friend must have gotten sick from that incident.


He wasn't real happy. About $200 for parts and labor and a thorough check-out (like, what ELSE might be wrong) by a top-rated amp tech.

All for a ten-cent fuse.

Same thing - wrong fuse - for my newly arrived '67 Bandmaster but at least I now knew to look. I have to ask: What was WITH people back then?!?!?

People, just look at the fuse, first....

Kiwi
 

FuzzWas

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people back then..."parts is parts":lol2

That just shows how tough these old amps are. You have to wonder how long these wrong fuses have been in a 60's amp. Maybe 20 or more years?? A PCB would have been completely gone.
 

NewOldCokeDave

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Jul 16, 2001
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That is NOT an NOS circuit board.. That has been recapped with Orange drops already.. The board and possibly the resistors are original, but it's hard to tell from the pics..

The SR is a bit more involved than a Bandmaster as it has the reverb circuitry as well. (Unless yours is the Bandmaster Reverb)

Unless you want to build another amp, I wouldn't bother with it actually..

68 is close to Blackface specs, but there maybe some differences if it's early or late '68..

I would check to see if you amp can be tweak as it is.. Less expensive..
 

FuzzWas

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Apr 13, 2003
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Dave can you tell me what AB763 means exactly? is it just a date code or mfg number?

I see a the site below that many of the reverb and tremolo amps have this designation as the schematic name.

http://www1.korksoft.com/~schem/fenderheaven.htm

Sorry if it's a dumb question but it's kind of confusing me.



Thanks!!
 

NewOldCokeDave

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It's a date in time of a specific design.. Seeing as Fender pretty much settled into about 4 or 5 specific designs, they went away from specific models of amps like (5F6, Bassman, 5F8 Twin, 5E3 Deluxe and designated specific designs which could be used in different multiple models..

The AB763 is for second version (AB) July (7) 1963 (63), with predececors of AA763 (first version Jul '63), and things like AA864, etc, etc..

Hope this helps..
 

FuzzWas

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That helps a whole lot Dave! You know your stuff don't you?

I have a brother in the UK so if I go visit this year I will send you some Cokes:pt

Thanks again for all the help.
 
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