Search found 58 matches

by krome_magnon
22 Nov 2017, 14:57
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Joyo PowerSupply 2 schematic [schematic]
Replies: 22
Views: 6262

Re: Joyo PowerSupply 2 schematic [schematic]

So, what technology would the Gig Rig Isolator be using?

https://shop.thegigrig.com/isolator/

Obviously not a multiple secondary transformer.
by krome_magnon
11 Nov 2017, 23:20
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Joyo PowerSupply 2 schematic [schematic]
Replies: 22
Views: 6262

Re: Joyo PowerSupply 2 schematic [schematic]

Ice-9 wrote:Does anyone fancy a forum project with real isolated outputs ? I might do one if anyone is interested.
Oh yes!

I can't imagine how it's done without individual taps off a transformer into normal linear regulator ICs. Would love to know how to do it.
by krome_magnon
30 May 2017, 11:11
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EBS - Multidrive
Replies: 11
Views: 7152

Re: EBS - Multidrive

ricothetroll wrote:What the hell is that schematic ? :D

MC14660B doesn't even exist, MC14660 is a 25W power resistor...

My guess is it's either a very weird one, or a joke from the author
Possibly a 4066 switch judging from how it's used in the schem.
by krome_magnon
14 Aug 2016, 19:15
Forum: Electric Guitar Rewiring
Topic: separate pickup switches.
Replies: 4
Views: 3894

Re: separate pickup switches.

Try this, you will need 3 DPDT switches. When all of them are off the signal path is grounded and silent. If any one or more are ON then that pickup is connected to the signal path. [ Image ] https://s725.photobucket.com/user/ruinbird/media/3puwdpdt_zpsfkktk9ig.jpg.html?sort=3&o=0 AWESOME!! this is...
by krome_magnon
13 Aug 2016, 18:50
Forum: Electric Guitar Rewiring
Topic: separate pickup switches.
Replies: 4
Views: 3894

Re: separate pickup switches.

Try this, you will need 3 DPDT switches. When all of them are off the signal path is grounded and silent. If any one or more are ON then that pickup is connected to the signal path. https://s725.photobucket.com/user/ruinbird/media/3puwdpdt_zpsfkktk9ig.jpg.html?sort=3&o=0 https://s725.photobucket.com...
by krome_magnon
11 Jun 2015, 00:17
Forum: Boutique Stompboxes dissected...
Topic: Crowther Audio - Prunes & Custard
Replies: 173
Views: 54305

Re: Crowther Audio - Prunes & Custard

I've been told that my original tracing has dissapeared so it's now hosted on Photobucket.

Image
by krome_magnon
31 Dec 2014, 15:43
Forum: Boutique Stompboxes dissected...
Topic: Van Weelden - Royal Overdrive
Replies: 7
Views: 5483

Re: royal overdrive - van weelden

A central block of purest MOJO!!!!!
by krome_magnon
27 May 2014, 22:32
Forum: Stuff Seen for Sale
Topic: Lovetone Doppelganger clone PCBs
Replies: 9
Views: 10337

Re: Lovetone Doppelganger clone PCBs

krome_magnon wrote:I'll have one! Where do I pay? 8)

Half figured that one out.

Just typed in details to the spreadsheet, now awaiting conformation?
by krome_magnon
27 May 2014, 21:58
Forum: Stuff Seen for Sale
Topic: Lovetone Doppelganger clone PCBs
Replies: 9
Views: 10337

Re: Lovetone Doppelganger clone PCBs

I'll have one! Where do I pay? 8)
by krome_magnon
02 Mar 2013, 22:25
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Boss - FB-2 Feedbacker / Booster [schematic]
Replies: 11
Views: 4103

Re: Boss FB-2 Feedbacker / Booster [schematic]

@krome_magnon Ah, thanks! That looks like the one I've seen before. Awesome! I'll have to try it. But one Q: what is the 4066 and what could I use in place of it? The 4066 is a bi directional switch. The confusing symbol kind of shows what it does, the triangles show the signal can go either way an...
by krome_magnon
02 Mar 2013, 16:54
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Boss - FB-2 Feedbacker / Booster [schematic]
Replies: 11
Views: 4103

Re: Boss FB-2 Feedbacker / Booster [schematic]

Here's the old. analogue, Boss DF-2 Feedbacker / Distortion schem.
by krome_magnon
20 Aug 2010, 23:46
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Dunlop - DCR-2 Rackmount Crybaby Wah
Replies: 11
Views: 5716

Re: Dunlop Crybaby Rack Wah DCR2

Here's the schem of the DCR-1SR.

A whole lot of control and support circuitry for the wah section on page 3.
by krome_magnon
19 Aug 2010, 21:54
Forum: DIY Stompbox designs
Topic: DIY ebow
Replies: 16
Views: 4091

Re: DIY ebow

4075921 is Gregory Heet's Ebow patent.

http://www.google.com/patents/about?id=AYc5AAAAEBAJ

And you could drive yourself nuts searching through the linked citations and simply searching guitar sustainer on google patents.

Lot's of food for thought though :)
by krome_magnon
08 May 2010, 15:14
Forum: Boutique Stompboxes dissected...
Topic: Aphex - Punch Factory [gut shots]
Replies: 36
Views: 5679

Re: Aphex Punch Factory [gut shots]

irmcdermott wrote:here are a few more
PICT0035 is perfect thanks.
by krome_magnon
07 May 2010, 22:26
Forum: Boutique Stompboxes dissected...
Topic: Aphex - Punch Factory [gut shots]
Replies: 36
Views: 5679

Re: Aphex Punch Factory [gut shots]

Would it be possible to get a shot of the back of the vu/control board without any backlight?

Like the back of the audio board, so the traces are clearer?

Cheers.
by krome_magnon
15 Jan 2009, 00:30
Forum: Amplifiers
Topic: retro American tv/hi-fi 50s style cabs??
Replies: 4
Views: 1250

retro American tv/hi-fi 50s style cabs??

Does anyone remember the brand name / maker of some retro American tv/hi-fi 50s style cabs that were out a few years back? A quick googling produces no results. I was thinking of making some in that style. And would like to see what's been done before. If you have read King Dork by Frank Portman you...
by krome_magnon
03 Jan 2009, 18:20
Forum: Boutique Stompboxes dissected...
Topic: Paul Cochrane - Timmy [traced]
Replies: 581
Views: 161538

Re: Paul Cochrane - Timmy [traced]

a bit of decoding of that thumbnail's URL leads to - https://img383.imageshack.us/img383/6647 ... er3wj0.png :D
by krome_magnon
03 Jan 2009, 16:12
Forum: Boutique Stompboxes dissected...
Topic: Crowther Audio - Prunes & Custard
Replies: 173
Views: 54305

Re: Crowther Audio - Prunes & Custard

Here's a quick and dirty suggestion for off board wiring...

Image

Is it any help? he power hook up would obviously be a little different if a DC socket rather than just a batter was used.
by krome_magnon
20 Sep 2008, 23:50
Forum: Boutique Stompboxes dissected...
Topic: Lovetone - Doppelganger [traced]
Replies: 154
Views: 26633

Re: Lovetone - Doppelganger [traced]

I did a reverse of the Dopp a number of years ago - here's the schemos I worked out (separate ones for CV and audio), am pretty sure the parts values are correct. I have the original layout copied (Protel format) and a layout of my own ... bit reluctant to release these as I hate the idea of someon...
by krome_magnon
19 Sep 2008, 23:35
Forum: Boutique Stompboxes dissected...
Topic: Lovetone - Doppelganger [traced]
Replies: 154
Views: 26633

Re: Lovetone - Doppelganger [traced]

Another update. Some tidying up, some corrections, some notes, some guesses to stuff not in the photos.

Image