Search found 721 matches

by sanders
Tue Feb 23, 2021 5:00 pm
Forum: Buchla, EMS & Serge
Topic: EMS KS. Unobtanium?
Replies: 76
Views: 3984

Re: EMS KS. Unobtanium?

Yeah, this is exactly what I think. The clone is going to have to be in some other kind of case all together. What should happen is a redesign that does does the same thing in the same way even. I would think most of any demand that’s out there for a newly available KS will be coming from Synthi ow...
by sanders
Sun Dec 20, 2020 11:38 pm
Forum: Music Tech DIY
Topic: EHX 16-Second Delay Repair?
Replies: 11
Views: 285

Re: EHX 16-Second Delay Repair?

Front and back of digital board, then front and back of analog board. Photos and scheme all from this site: http://www.sdiy.org/xyzzy/eh16/boards/index.html http://www.sdiy.org/xyzzy/eh16/boards/digitalboardtop.jpg http://www.sdiy.org/xyzzy/eh16/boards/digitalboardsolder.jpg http://www.sdiy.org/xyzz...
by sanders
Sun Dec 20, 2020 11:25 pm
Forum: Music Tech DIY
Topic: EHX 16-Second Delay Repair?
Replies: 11
Views: 285

Re: EHX 16-Second Delay Repair?

I agree, it could just be some cap.. also, if you can, please check the voltages on the rails, you should have +12V and -15V, also +5V for the digital section I will start here. The problem is, the PCBs barely fit into the enclosure and everything is jammed in there about as tight as can be. This m...
by sanders
Sun Dec 20, 2020 11:10 pm
Forum: Music Tech DIY
Topic: EHX 16-Second Delay Repair?
Replies: 11
Views: 285

Re: EHX 16-Second Delay Repair?

It’s a f#cling awesome effect, I can tell you that much; I’ve been looking for one I could afford for more than 10 years. Wouldn’t you know it, I finally found one, actually had the cash, and I only got to use it only a few days before it started dying. Besides the lovely delay loop sound itself, th...
by sanders
Sun Dec 20, 2020 8:35 am
Forum: Music Tech DIY
Topic: EHX 16-Second Delay Repair?
Replies: 11
Views: 285

Re: EHX 16-Second Delay Repair?

In case anyone is interested, here are the best schematics I’ve been able to find. “Look upon my works and despair” (repair?) Image
Image
by sanders
Sun Dec 20, 2020 8:16 am
Forum: Music Tech DIY
Topic: EHX 16-Second Delay Repair?
Replies: 11
Views: 285

Re: EHX 16-Second Delay Repair?

Ok, I’ll try to describe the issue. Basically it was working fine, until I noticed that it would take a minute or so to sort of warm up one day, and every day thereafter. The delay wouldn’t sound for about a minute, and then it would slowly come back in, distorted and bit-crunched at first. This wen...
by sanders
Sat Dec 19, 2020 4:13 am
Forum: Music Tech DIY
Topic: EHX 16-Second Delay Repair?
Replies: 11
Views: 285

EHX 16-Second Delay Repair?

I recently acquired one of the 80s version 16-Second Delays that began dying (losing delay signal) almost as soon as I got it. I’ve been writing and calling several of the more well known music electronic repair places and have yet to find a single place willing to work on it for me. I do routine ma...
by sanders
Sat Dec 12, 2020 6:25 pm
Forum: Buchla, EMS & Serge
Topic: VCS-3 / Synthi-A trapezoid generator indicator light?
Replies: 40
Views: 1783

Re: VCS-3 / Synthi-A trapezoid generator indicator light?

The board B trimmers for the envelope shouldn't affect the lamp behaviour. It’s been about 5 years now, And I’m just relying on memory. On reflection, it’s entirely possible the LED and zener did most of the work. I also may have been misinterpreting what seemed like a give and take happening betwe...
by sanders
Sat Dec 12, 2020 4:38 am
Forum: Buchla, EMS & Serge
Topic: VCS-3 / Synthi-A trapezoid generator indicator light?
Replies: 40
Views: 1783

Re: VCS-3 / Synthi-A trapezoid generator indicator light?

I am looking for something as close to the original style indicator housing as possible (I will either fit a neon or an led with the mods) I’ve seen at least half a dozen different indicators used on Synthi’s from different years and production runs. Those “morning mist” painted panel Synthi’s (as ...
by sanders
Sat Dec 12, 2020 4:07 am
Forum: Buchla, EMS & Serge
Topic: VCS-3 / Synthi-A trapezoid generator indicator light?
Replies: 40
Views: 1783

Re: VCS-3 / Synthi-A trapezoid generator indicator light?

I wish I can improve the behaviour on mine a little bit .. so it will get a tad more dim when not triggered. After quite a bit of tinkering, I was able to “trim” away this behavior on mine using the Board b trims. I think it became easier to fine tune after I replaced my lamp with an LED. That said...
by sanders
Sun Nov 01, 2020 10:05 am
Forum: Buchla, EMS & Serge
Topic: VCS-3 / Synthi-A trapezoid generator indicator light?
Replies: 40
Views: 1783

Re: VCS-3 / Synthi-A trapezoid generator indicator light?

You just have to look, you can usually find something close on eBay if you have the right search. Dialight/Dialco made a lot of similar panel indicators for Moog and Buchla. Bulgin may have made the indicators for EMS. Many of the same lamps (and other things) were used in British made guitar amps a...
by sanders
Thu Oct 29, 2020 10:55 pm
Forum: Buchla, EMS & Serge
Topic: VCS-3 / Synthi-A trapezoid generator indicator light?
Replies: 40
Views: 1783

Re: VCS-3 / Synthi-A trapezoid generator indicator light?

Here’s a similar red indicator, without bezel, with retaining clip:
https://www.ebay.com/itm/INDICATOR-NEON ... Sw14RdbUAv
attachment=0]CA924542-7D7B-4650-9C15-52EDF666AF50.jpeg[/attachment]
by sanders
Sat Sep 05, 2020 8:08 pm
Forum: Music Tech DIY
Topic: Phutney clone
Replies: 802
Views: 97919

Re: Phutney clone

hey Phutney Builders, how's your experience with NOS trannies and tropical fish caps compared to modern equivalents. is it worth the time and money? My subjective opinion is the same as above; yes to original transistors, but no significant improvement from tropical fish caps in the VCF. I tried se...
by sanders
Fri Jul 31, 2020 6:11 pm
Forum: Buchla, EMS & Serge
Topic: EMS KS. Unobtanium?
Replies: 76
Views: 3984

Re: EMS KS. Unobtanium?

E9F218EB-70E6-4DF3-8016-C1BDF8385DA0.jpeg If anyone has a nice high res photo of the back of the KS' pcb I can take an honest crack at it and make the adjustments for the shift register fiasco. There is currently an updated (for lack of better term) KS one-off prototype using available parts and te...
by sanders
Fri Jun 19, 2020 5:06 am
Forum: Buchla, EMS & Serge
Topic: Haible Son of Storm Tide in 4u
Replies: 4
Views: 637

Re: Haible Son of Storm Tide in 4u

Do you have a panel design for it? I’ve been planning to make a SOST for about 10 years, but the feature set is so dense, it’s not the easiest circuit to lay out a nice panel for. I like the BBD Haible used in this design, think it’s comparable to SAD1024 or TCA350. This makes a huge difference in t...
by sanders
Fri Jun 05, 2020 4:10 am
Forum: Buchla, EMS & Serge
Topic: EMS Synthi Battery Pack
Replies: 7
Views: 545

Re: EMS Synthi Battery Pack

I wish there were more info/schematics on these early case side controllers. Looks as if it was a passive controller. I believe the “keyboard” was resistive, yes? And the “random voltage generator” was just a mechanical roulette wheel that would land on a random resistance value probably. AX wasn't ...
by sanders
Tue Jun 02, 2020 2:29 am
Forum: Eurorack Modules
Topic: PPG waves in eurorack wavetable oscillators?
Replies: 19
Views: 943

Re: PPG waves in eurorack wavetable oscillators?

I’ve also gone down this road with wavetable modules and I don’t think any of these modules really get the feel of what I consider a PPG wave/ wave computer etc type sound simply because they’re mostly all monophonic oscillators and to me the PPG sound is inherently polyphonic, chords and pads. Some...
by sanders
Wed May 13, 2020 2:19 pm
Forum: General Gear
Topic: Behringer Mono/Poly!
Replies: 220
Views: 14728

Re: Behringer Mono/Poly!

I don’t expect more than an impression of the sound from these synth videos.. But have you seen this demo? [bbvideo] http://www.youtube.com/watch?v=lcbSCiIRr0Y&app=desktop&persist_app=1 [/bbvideo] Listen to the arpeggio segment at 3:35. That’s a mono/poly. love that they reproduced the panel layout ...
by sanders
Tue May 12, 2020 1:36 pm
Forum: Buchla, EMS & Serge
Topic: Switchcraft Tini-Jax overmolded cables availability?
Replies: 87
Views: 6628

Re: Switchcraft Tini-Jax overmolded cables availability?

+1 signed on it's so hard to decide how many to get; like I don't want to underestimate what I need, cause for all I know, I'll never have an opportunity to buy more. But then I've got to be conservative about spending now as well. talk about life choices... Anyway, I'm so glad this order is happeni...
by sanders
Fri Apr 17, 2020 7:36 pm
Forum: Buchla, EMS & Serge
Topic: Switchcraft Tini-Jax overmolded cables availability?
Replies: 87
Views: 6628

Re: Switchcraft Tini-Jax overmolded cables availability?

Super interested in group but as well!
by sanders
Thu Apr 16, 2020 2:58 pm
Forum: Music Tech DIY
Topic: Phutney clone
Replies: 802
Views: 97919

Re: Phutney clone

F7F190F7-9AAA-472E-898A-74E3A2465A81.jpeg I was able to fix a lot of the unwanted noise by adjusting the channel output gain trims on PCB X. I’m sure I’ve done so in the past, but for whatever reason, I realized the gains were up too high once again. I typically play the phutney through a board and...
by sanders
Thu Apr 16, 2020 2:21 pm
Forum: Music Tech DIY
Topic: sample/hold for minimoog?
Replies: 1
Views: 219

Re: sample/hold for minimoog?

Not what you’re asking. But, maybe worth noting, there’s already a dedicated S/H designed for the Minimoog, although it was a stand alone accessory device and much more complex than the circuit above. But I bet it’s worth the extra effort, as it seems like a really well designed, full featured contr...
by sanders
Thu Apr 09, 2020 6:47 pm
Forum: Music Tech DIY
Topic: Phutney clone
Replies: 802
Views: 97919

Re: Phutney clone

I regularly use a graphic eq to notch out 10db of noise at 500Hz, 630Hz, 800Hz, 1k Hz, 1k25 Hz, 1k6 Hz, and then scoop out another 15db of hum at 200hz using parametric eq on my board. After all this, I get a relatively quiet ground floor output. I’ve often been told the Synthi is a very Noisey inst...
by sanders
Thu Mar 26, 2020 8:03 pm
Forum: Music Tech DIY
Topic: Synthi options
Replies: 18
Views: 1301

Re: Synthi options

I wanted an authentic Synthi experience, but also felt it was too ridiculous spending $700 (or more) on a 16x16 or 20x20 ghielmetti (even though a 20x20 would make an awesome super-Synthi). For a one-off diy build, to me it seemed the best reasonably-priced compromise was an ‘off the shelf’ 15x15 (w...
by sanders
Thu Mar 26, 2020 7:10 pm
Forum: Music Tech DIY
Topic: [Korb-Modular] Online-Shop launched
Replies: 66
Views: 9471

Re: [Korb-Modular] Online-Shop launched

I’m a little frustrated with a Korb Pusher I bought second hand. I noticed two of the FSRs were occasionally intermittent, so I removed the panel to get my multimeter probes in there. While removing the panel the two intermittent FSRs severed at the panel cutout, and by the time I carefully got the ...

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