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Thunderbird Club

@TBird1958 I keep forgetting to get a shot of the back of my Trace RAH350SMX but this 600 model turned up on GCs site so I stole a pic. The only difference I am aware of is the name on the back. The back of my amp is like this one and has several DI line out options.
QmXvwHZ.jpg
 
Here’s the control cavity of the ‘77 for those interested.
View attachment 7249955View attachment 7249956
Definitely wired different than the other Bicentennial birds I’ve seen.

Others are tone Cap from center lug of tone pot to center lug of volume pot vs yours which is more traditional with the tone Cap wired right lug on tone pot to ground on tone pot. Not sure what difference in sound if any that would have or what difference if any it would make in the operation of the knobs.

Your neck pickup is wired slightly differently as well but I suspect it still operates and sounds the same. Yours is just grounded slightly differently, but I suspect it has no impact on sound or operation.
 
Definitely wired different than the other Bicentennial birds I’ve seen.

Others are tone Cap from center lug of tone pot to center lug of volume pot vs yours which is more traditional with the tone Cap wired right lug on tone pot to ground on tone pot. Not sure what difference in sound if any that would have or what difference if any it would make in the operation of the knobs.

Your neck pickup is wired slightly differently as well but I suspect it still operates and sounds the same. Yours is just grounded slightly differently, but I suspect it has no impact on sound or operation.
So it's wired weird.
 
@TBird1958 I keep forgetting to get a shot of the back of my Trace RAH350SMX but this 600 model turned up on GCs site so I stole a pic. The only difference I am aware of is the name on the back. The back of my amp is like this one and has several DI line out options.
QmXvwHZ.jpg
That’s a beast!
 
@TBird1958 I keep forgetting to get a shot of the back of my Trace RAH350SMX but this 600 model turned up on GCs site so I stole a pic. The only difference I am aware of is the name on the back. The back of my amp is like this one and has several DI line out options.
QmXvwHZ.jpg
That has more going on in the back as any amp I recall seeing.
 
Definitely wired different than the other Bicentennial birds I’ve seen.

Others are tone Cap from center lug of tone pot to center lug of volume pot vs yours which is more traditional with the tone Cap wired right lug on tone pot to ground on tone pot. Not sure what difference in sound if any that would have or what difference if any it would make in the operation of the knobs.

Your neck pickup is wired slightly differently as well but I suspect it still operates and sounds the same. Yours is just grounded slightly differently, but I suspect it has no impact on sound or operation.
Now that I’m going to have some more free time, I’ll bring it down and you can explain it all to me. It’s a really nice Thunderbird.
 
…don’t know how it looked before, but I needed a blue one :smug:
I’m a big fan of the BaCHs, primarily because of the feel of the neck. Sure want a blue one. There’s one in Seattle I’m scheming to get my hands on some day….

Irv @Engle has the pattern for the logo and could probably make a decal if you want to restore it with the proper look.
 
Now that I’m going to have some more free time, I’ll bring it down and you can explain it all to me. It’s a really nice Thunderbird.
Marshall, congrats on your retirement day (today IIRC).
That’s a big move, I made it 12 years ago at age 55, loved my job but it’s still the best move I ever made from a quality of life, health and sanity standpoint. Be sure to quickly settle into a healthy routine with plenty of mental and physical stimulation. Set learning goals and vacation goals. Focus quality time on the family that your job may have been preventing you from doing and be supportive of your wife as she adjusts to your life changes.
And of course, you’re always welcome to hang at my house for bass fun and jamming.
 
I’m a big fan of the BaCHs, primarily because of the feel of the neck. Sure want a blue one. There’s one in Seattle I’m scheming to get my hands on some day….

Irv @Engle has the pattern for the logo and could probably make a decal if you want to restore it with the proper look.

Marshall, I just wanted to say Congratulations on making today your retirement. Now's the time to really enjoy life, family, home, music!