What's My Line? (Help identify these PCB's)

italianguy63 · August 13, 2016, 06:02:51 AM

I have a group of un-identified PCBs I got from Mike. Any help identifying them and/or pointing me to the build docs will be greatly appreciated! Consider this the Italianguy quiz of the weekend!

ONE:

TWO:

THREE:

FOUR: (This is a NOC3 board)

Thanks in advance! MC

bluebunny · August 13, 2016, 06:36:56 AM

I have no idea what it might be, but that second one just screams "Rick Holt" at me.

Maybe I'll have a little disk-rummage...

italianguy63 · August 13, 2016, 06:54:17 AM

Thanks.. I can only guess. One has an old MXR or DA look to it.. Three makes me think some old fuzz/tonebender/rat type thing... the other 2, no idea. Should be a fun hunt.

bluebunny · August 13, 2016, 07:11:10 AM

It's Rick's Little Angel chorus, but the pre-birthday version.

Do I get a prize?

I'll take the boat, please.

italianguy63 · August 13, 2016, 07:19:22 AM

Awesome!! I will take you fishing if you come visit!! MC

slacker · August 13, 2016, 07:31:21 AM

The first one's the GGG 6 band EQ http://www.generalguitargadgets.com/effects-projects/eq/6-band-graphic-eq/ no idea how I know that.

vigilante397 · August 13, 2016, 11:22:18 AM

Quote from: slacker on August 13, 2016, 07:31:21 AM
The first one's the GGG 6 band EQ http://www.generalguitargadgets.com/effects-projects/eq/6-band-graphic-eq/ no idea how I know that.

I recognized that one as well. It's kind of a unique layout.

italianguy63 · August 13, 2016, 02:12:39 PM

Well we are 1/2 way there! Any ideas on the other 2? I looked at the NOC website, and did not see anything with 3 knobs like that....

vigilante397 · August 13, 2016, 04:22:07 PM

I haven't found anything to verify it, but the NOC looks like it might be a firefly?

stringsthings · August 13, 2016, 08:33:14 PM

Yup, it's the firefly.

italianguy63 · August 14, 2016, 05:10:08 AM

Quote from: stringsthings on August 13, 2016, 08:33:14 PM
Yup, it's the firefly.

Anybody have a build doc for that? That just leaves the last one....

slacker · August 14, 2016, 08:27:43 AM

The last one looks like it's got two transistors where one leg of each is tied to ground or power and, one of the other legs of each are tied together, if they were fets they could be two buffers, which makes me think of this. http://tagboardeffects.blogspot.co.uk/2012/02/split-n-blend.html perhaps.

Cozybuilder · August 14, 2016, 11:09:50 AM

You could verify if it matches this schematic:

duck_arse · August 14, 2016, 11:15:04 AM

just from the 120nF, I'd say cozy's got it. and the 156R as the kicker.

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What's My Line? (Help identify these PCB's)