uhhh yeah, another muff a comin' ( video samples please check it out )

[Mark Hammer]

Damn those blue boards are pretty!

And they make it so easy to read the component values too.  I'm envious.

[Scruffie]

edit. anyone trying to etch off scruffie's, you need to connect Q2 and Q3 to each 15k power R with a jumper.

I think the technical term for this is bugger.

I'll re-do the layout soon... and add pads for your switchable mod.

It was one of my earlier layouts 

[joegagan]

no prob, scruffie, it teaches us AGAIN to do a check and recheck of the layout  before etching. but overall, a great, tight little layout. if you are going in to re-do, maybe remake the traces a wee bit wider for strength?

thank you for the layout!

[Scruffie]

no prob, scruffie, it teaches us AGAIN to do a check and recheck of the layout  before etching. but overall, a great, tight little layout. if you are going in to re-do, maybe remake the traces a wee bit wider for strength?

thank you for the layout!

Can do thicker traces, i've improved at making layouts now anyway so it should be easier and better in general.

I'll try and get on that this evening.

[azrael]

prototype in an EH case. built for a friend, it is the same as the schem on page 1 of this thread, with the following exceptions:

pregain control, 100k pot ( 2k R between  lug 1 and ground ) , replaces 39k input R.

2200 pf highs pass cap across lugs 2 and 3 of pregain pot, switchable. notice on video, switches in and out.

edit. anyone trying to etch off scruffie's, you need to connect Q2 and Q3 to each 15k power R with a jumper.

edit2 woohoo, this is my #200 video at my youtube channel. comin up on quartermillion channel views (!??)

why the decision to add a gain control to the stripped down muff? and why not just use the standard gain control?

I find this design interesting because I normally think the emitter shorted to ground is too gainy and can get muddy really easily. but here, I think it sounds great!

[joegagan]

good question!
i had to fill two holes in the top of that EH case, haha. it was a mod for a friend, the mighty bill richardson, luthier extraordinaire. ( http://studioguitar.com/default.aspx  ) i call it a mod but we replaced every single EH component with road-worthy quality parts and construction techniques. it is like a 55 chevy with modern corvette chassis, ha.

but  the pregain really does work well, esp with the treble bleed cap. i think having the gain control in the position makes it more a part of the pickup network, i approach it a little like a fuzzface.  my next experiment involves a dual gang 100k pot as follows:

*one gang as seen in above video, the other gang controls the 39k  feeding q4.  turn down hiss at the same time you turn down gain. will let you know how that goes.

BUT

we are still committed to the one knob version we first talked about in this thread. more on that later.