tweed bassman build

[snuffy]

This is my first attempt at cabinet finishing.Bought a bare cab. on the bay and did my best. I have alot of respect for you cab. builders. It was not easy.
As for guts, I used a mojo chassis,hammond pt, heyboer ot, hammond choke, weber circuit board. Made my own cap board in g-10. Amp is quiet and sounds good.

[ToneMerc]

Snuffy, looks great on both fronts.

TM

[Structo]

Man that looks great!

Very nice!

[Bob S]

If that sounds half as good as it looks it's a keeper.
Great Job all round.

[martin manning]

Looks great! Thanks for the high-res photo's... your work is top-notch.

[Firestorm]

You're going to proud of that for years and years. As well you should.

[Firestorm]

Oh, a recurring question on builds that have a speaker right in front of the output tubes: did you try flipping the phase and did it make a difference?

[M Fowler]

That is a great looking build, congrats.

Mark

[tribi9]

Awesome, love the angles on the bias caps.

[statorvane]

Fantastic looking cab. Super job.

What speakers did you match with the Legends?

Are those 5881 power tubes?

[snuffy]

Thanks for the nice words guys. I owe it all to this forum. @ Firestorm- Great question. I have not tried flipping the phase,but will give it a try.Thanks! @Stratovane- The blue speaks are Emi. alnicos, 35w. The power tubes are old mesa 6l6gc. I had a chance to do some tube swapping today, and settled on this- V1,12at7... V2&V3,12ax7...V4&5, Phillips 6l6wgb. Amp sounds much better.

[Bob S]

And it goes to 12 !

[LeftyStrat]

Beautiful build!

I'm with Firestorm, do try flipping the phase to try it out. When I first heard of this I didn't believe it, but I tried it in a small combo and it was noticeable.

[Firestorm]

Beautiful build!

I'm with Firestorm, do try flipping the phase to try it out. When I first heard of this I didn't believe it, but I tried it in a small combo and it was noticeable.

I actually measured this in a very unscientific way: the fixed field behind an alnico extends straight back and can deflect a compass needle 17 inches away. That field is modulated by the signal, so you gotta believe a tube sitting in that field is affected somehow. Probably not the electrons travelling to the plate 'cause they get up to about 70km/sec. by the time they hit the plate, but the electrostatic fields in the tube have to be affected: notably the virtual cathode, which we were on the verge of understanding when all the smart guys transitioned to solid-state. Just a recurring interest of mine, arcane though it may be.

[LeftyStrat]

I actually measured this in a very unscientific way: the fixed field behind an alnico extends straight back and can deflect a compass needle 17 inches away. That field is modulated by the signal, so you gotta believe a tube sitting in that field is affected somehow. Probably not the electrons travelling to the plate 'cause they get up to about 70km/sec. by the time they hit the plate, but the electrostatic fields in the tube have to be affected: notably the virtual cathode, which we were on the verge of understanding when all the smart guys transitioned to solid-state. Just a recurring interest of mine, arcane though it may be.

Like I say, I scoffed at the idea when I first heard it. But my experiments suggest there is an effect. Now I can't scientifically say one phase will always be better than the other, because I haven't played with it enough.

What I can say is it seemed to produce almost a comb filter effect, where one sounded better than the other. Perhaps minimum cancellation.

Like you, it's interesting to me, and I always encourage others to experiment with it.

I believe the first I heard of the effect was from a post by John Suhr on here.