Search found 284 matches

by uncleboko
21 Jun 2020, 15:49
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - Micro Synth XO Version [schematic]
Replies: 101
Views: 49877

Re: EHX - Micro Synth XO Version [schematic]

Would there be room for the slider pots?
by uncleboko
13 Jun 2020, 15:28
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - Micro Synth XO Version [schematic]
Replies: 101
Views: 49877

Re: EHX - Micro Synth XO Version [schematic]

A reworked Space Drum circuit using LM13700 was posted a while back which might give some clues.

viewtopic.php?t=11251
by uncleboko
06 May 2020, 19:00
Forum: Amplifiers
Topic: How to improve tube amplifier tone by changing one part
Replies: 101
Views: 5516

Re: How to improve tube amplifier tone by changing one part

They will no doubt make you play faster too :lol: :lol:
by uncleboko
30 Dec 2019, 22:29
Forum: Pedal Debugging & Troubleshooting Support
Topic: EHX 4 Knob Deluxe Octave Multiplexer Schematic?
Replies: 5
Views: 406

Re: EHX 4 Knob Deluxe Octave Multiplexer Schematic?

uncleboko wrote:Did anyone ever adapt this for LM13600/13700?
Did anyone?
by uncleboko
02 Oct 2019, 11:42
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Wem Watkins - Super IC Copicat Tape Delay (1978)
Replies: 2
Views: 1357

Re: Wem Watkins - Super IC Copicat Tape Delay (1978)

Designed I think by Alan Bradford of Time Machine Electronics.
by uncleboko
31 Aug 2019, 13:09
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - Riddle QBalls VCF
Replies: 25
Views: 7785

Re: EHX - Riddle QBalls VCF

uncleboko wrote:A pedal tech told me its almost entirely opamps, with a quad comparator thrown in for good measure!!!
With a plethora of resistors, caps, dual diodes and a vactrol. More than that I cannot say having lost touch with this guy.
by uncleboko
30 Aug 2019, 23:44
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - Riddle QBalls VCF
Replies: 25
Views: 7785

Re: EHX - Riddle QBalls VCF

A pedal tech told me its almost entirely opamps, with a quad comparator thrown in for good measure!!!
by uncleboko
24 Jan 2019, 16:42
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Klemt Echolette M100 tube amp
Replies: 18
Views: 2999

Re: Klemt Echolette M100 tube amp

I knew a guitarist in the Barnet area of North London around 1964-65 who used Echolette echo with an Echolette amp, and could play much Chet Atkins stuff - including Lullaby of Birdland!!
by uncleboko
08 Jan 2019, 22:05
Forum: Pedal Debugging & Troubleshooting Support
Topic: EHX 4 Knob Deluxe Octave Multiplexer Schematic?
Replies: 5
Views: 406

Re: EHX 4 Knob Deluxe Octave Multiplexer Schematic?

Did anyone ever adapt this for LM13600/13700?
by uncleboko
19 Aug 2018, 08:56
Forum: Pedal Debugging & Troubleshooting Support
Topic: Servicing a 90's EH Deluxe Memory Man
Replies: 17
Views: 257

Re: Servicing a 90's EH Deluxe Memory Man

May be stating the obvious but have you tried disconnecting the switching altogether and testing the wet path for audio at various points?
by uncleboko
13 May 2018, 12:40
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - (Super) Space Drum (Percussion Effect) [schematic]
Replies: 35
Views: 13183

Re: EHX - (Super) Space Drum (Percussion Effect) [schematic]

uncleboko wrote:Ah yes of course I forgot about the power requirement!

I'm used to plugging a pair of electret capsules into my digital recorder, which has plug in power, when recording a gig.
by uncleboko
13 May 2018, 00:12
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - (Super) Space Drum (Percussion Effect) [schematic]
Replies: 35
Views: 13183

Re: EHX - (Super) Space Drum (Percussion Effect) [schematic]

Ah yes of course I forgot about the power requirement!
by uncleboko
12 May 2018, 10:55
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - (Super) Space Drum (Percussion Effect) [schematic]
Replies: 35
Views: 13183

Re: EHX - (Super) Space Drum (Percussion Effect) [schematic]

Hello, I'm interested in making one for fun! Where can I find Xtal mic or can I put another thing in order to replace the xtal? Thanks https://www.ebay.co.uk/p/20-Pcs-Electret-Condenser-Microphone-Mic-Capsules-for-Mp3-Mp4/1738417686?_trksid=p2047675.l2644 These should do the trick, you may need to ...
by uncleboko
13 Feb 2018, 10:02
Forum: Amplifiers
Topic: Mike Matthews Freedom Amp [schematic]
Replies: 14
Views: 10637

Re: Mike Matthews Freedom Amp [schematic]

I worked on one of these a few years back and had a schematic but will have to dig it out. Why the amp sounded so good came down to the transistors used. they were same transistors used in vintage fuzz boxes that fetch so much dough. Nonsense. + a very huge 1. Pure mojocrap Superb tone control!
by uncleboko
06 Aug 2017, 21:03
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - Deluxe Octave Multiplexer [schematic]
Replies: 14
Views: 2428

Re: Deluxe Octave Multiplexer schematic [schematic]

No, it used a CA3098 and was dated Jan/Feb 1978.
by uncleboko
06 Aug 2017, 18:26
Forum: Modern Stompbox Effects (1975 - ...)
Topic: EHX - Deluxe Octave Multiplexer [schematic]
Replies: 14
Views: 2428

Re: Deluxe Octave Multiplexer schematic [schematic]

Page 1 - GE diodes = 1N3666, diode from base of 2n5087 is 1N5226A
by uncleboko
17 Jul 2017, 17:57
Forum: Ready-To-Build Effect Projects
Topic: A BETTER FLANGER - Electronics Today January 1987 [verified]
Replies: 11
Views: 1704

Re: A BETTER FLANGER - Electronics Today January 1987 [verified]

No luck with EH Flanger Hoax schematic, obviously kept very hidden!