Search found 885 matches

by Clockgate
Sat Oct 03, 2020 2:50 pm
Forum: Music Tech DIY
Topic: Elby CGS48 3.0 problems
Replies: 42
Views: 1743

Re: Elby CGS48 3.0 problems

I can't remember the exact output levels for all the waveforms, but in the standard build of the CGS48, the sine & variable outputs are much less than the others. Most DIY builders add op-amp gain stages to rectify this.
by Clockgate
Tue Jun 02, 2020 2:31 pm
Forum: BugBrand Devices
Topic: Soundscapes?
Replies: 12
Views: 778

Re: Soundscapes?

Awesome sounds there, I would be interested to know what setup you used for that piece.
by Clockgate
Sat May 30, 2020 7:59 am
Forum: Buchla, EMS & Serge
Topic: Any 73-75 word?
Replies: 44
Views: 8124

Re: Any 73-75 word?

tele_player wrote:
Sat May 30, 2020 7:10 am
I suspect he's just selling a Homebuilt prototype. The Homebuilt is interesting, useful, and cheap (for Serge), but Voice+Control is a better combination of modules. I also don't think we'll ever see a la carte DIY.
You are probably correct, there is only one unit in stock.
by Clockgate
Sat May 30, 2020 6:38 am
Forum: Buchla, EMS & Serge
Topic: Any 73-75 word?
Replies: 44
Views: 8124

Re: Any 73-75 word?

I don't think it's that curious or surprising. Probably an intentional omission to help sales of each panel. The voice/control/preset don't have the reverb/peak and trough/preamp. If the ala cart diy surfaces though, it would be nice to configure something. I have to disagree, I think it's both cur...
by Clockgate
Fri May 29, 2020 7:48 pm
Forum: Buchla, EMS & Serge
Topic: Any 73-75 word?
Replies: 44
Views: 8124

Re: Any 73-75 word?

I see 73-75 now have a completed homebuilt system for sale. I have the voice panel and really like it. I usually diy, but the cost of the extra parts, plus the time involved, made the pre-built panel a no brainer. The homebuilt system looks great, but it seems rather curious to me that there is no v...
by Clockgate
Thu May 14, 2020 4:30 pm
Forum: Music Tech DIY
Topic: Use of TLC339 in logic circuits?
Replies: 13
Views: 382

Re: Use of TLC339 in logic circuits?

It doesn't 'digitize' the input, but it can produce usable logic signals from a varying analog voltage. It's probably easiest to explain using an opamp. The opamp amplifies the voltage difference between the 2 inputs (+ & -). The 'open loop gain', which is the gain before you add a feedback resistor...
by Clockgate
Thu May 14, 2020 1:08 pm
Forum: Music Tech DIY
Topic: Use of TLC339 in logic circuits?
Replies: 13
Views: 382

Re: Use of TLC339 in logic circuits?

The TLC339 is a low power version of the popular LM339 quad comparator. Comparators are used in a lot of synth modules. You can create logic signals from varying analog voltages. Also if you feed a sine or triangle etc into one input of a comparator, and a DC voltage into the other input, this will ...
by Clockgate
Wed May 13, 2020 5:13 pm
Forum: Music Tech DIY
Topic: to many NAND gates!!!
Replies: 18
Views: 640

Re: to many NAND gates!!!

Well, as Eloc pointed out, there is Gate Universiality. So, you can make ANDs, ORs, XORs, NORs, etc with those by combining them. Still wasn't very exciting was it? :D You could make a rising or falling edge detector with them. The basis of gate universality being De' Morgan's laws. Expressed in En...
by Clockgate
Fri May 08, 2020 4:13 pm
Forum: Music Tech DIY
Topic: Elby CGS48 3.0 problems
Replies: 42
Views: 1743

Re: Elby CGS48 3.0 problems

Hi, The pdf link is still on? I cant download it Are you using Chrome? I get an error when I try to download it with Chrome, but it opens when I use Firefox or Internet Explorer. Very strange. Edit: I tried a number of times using Chrome, and it opens sometimes and gives me the error other times.
by Clockgate
Fri May 08, 2020 12:00 pm
Forum: Music Tech DIY
Topic: Plugged in a Pitt ADSR red stripe up...
Replies: 12
Views: 475

Re: Plugged in a Pitt ADSR red stripe up...

If it's still working, the chances are it is from a resistor, which started burning but didn't go open circuit. The other possibility could be a reverse voltage protection diode. I don't have euro so I'm not familiar with the module.
by Clockgate
Sun May 03, 2020 8:21 am
Forum: Buchla, EMS & Serge
Topic: First Serge Panel - advice appreciated
Replies: 5
Views: 441

Re: First Serge Panel - advice appreciated

Okay, very messy! (apologies) but this is the layout I'm thinking of: https://imgur.com/A9CaKqE Will probably get a designer to help me ;) The more I look at the 73-75 the more it interests me though. Pity there doesn't seem to be any more panel/pcb sets going I have a 73-75 voice panel, and it sou...
by Clockgate
Sun May 03, 2020 5:33 am
Forum: Music Tech DIY
Topic: Elby CGS48 3.0 problems
Replies: 42
Views: 1743

Re: Elby CGS48 3.0 problems

oops double post
by Clockgate
Sun May 03, 2020 4:59 am
Forum: Music Tech DIY
Topic: Elby CGS48 3.0 problems
Replies: 42
Views: 1743

Re: Elby CGS48 3.0 problems

Clock gate: It’s more where I should cut! Gandalf: I ordered this kit in October last year and maybe it was already fixed then? I tested with multimeter and I get values from R401 to 407. Both tracks to be cut are on the component side of the board. If it has already been done, you should easily be...
by Clockgate
Sat May 02, 2020 12:14 pm
Forum: Music Tech DIY
Topic: Elby CGS48 3.0 problems
Replies: 42
Views: 1743

Re: Elby CGS48 3.0 problems

I couldn't get a decent picture with my camera, and one of the cuts in obscured now that the board is populated. Do you know which tracks to cut, but aren't sure how to go about it? Use the point of a sharp Stanley blade or similar and just scrape at the copper track until it looks open. Use the con...
by Clockgate
Mon Apr 27, 2020 6:16 pm
Forum: Music Tech DIY
Topic: MTA .156 distro board?
Replies: 7
Views: 275

Re: MTA .156 distro board?

Use a bit of stripboard?
by Clockgate
Sat Apr 25, 2020 7:18 pm
Forum: General Gear
Topic: Behringer - Introducing the CAT Synthesizer
Replies: 153
Views: 13655

Re: Behringer - Introducing the CAT Synthesizer

Back in the olden days of this thread, we talked about the Behringer CAT. All the nonsense aside, Those French Girls used one so well in the early 80's when I was in Glasgow. Later in the 80's Poisoned Electrick Head played a mean live set when I was in the North Of England. Been looking for an ori...
by Clockgate
Thu Apr 23, 2020 5:40 pm
Forum: Music Tech DIY
Topic: Elby CGS48 3.0 problems
Replies: 42
Views: 1743

Re: Elby CGS48 3.0 problems

I received the following message from Elby regarding the CGS48 3.0: The Serge Shaper circuit needs a 0/5V sawtooth NOT the +/-5V sawtooth that is present on U301_1. The modification in the build guide (referring to P401) achieves this. The LM3900 needs +V/0V for power but is incorrectly wired to +V/...
by Clockgate
Thu Apr 23, 2020 11:26 am
Forum: Music Tech DIY
Topic: Elby CGS48 3.0 problems
Replies: 42
Views: 1743

Re: Elby CGS48 3.0 problems

I'm currently building 2 x CGS48 3.0 VCOs for my BOG, and am a bit confused about one of the PCB errors mentioned in the new build document. The new document says to cut the track to P401_3 and wire P401_3 to the right end of R202. On doing a continuity check for P401 on the PCB, I found that pin 1 ...
by Clockgate
Wed Apr 22, 2020 5:10 pm
Forum: Music Tech DIY
Topic: Shipment race!
Replies: 27
Views: 1384

Re: Shipment race!

I put a Mouser order in last Tuesday, it was shipped from Texas on Wednesday and arrived at my residence in London on Friday morning. I was blown away by that. Unfortunately, my recent Tayda order seems to be lost in the ether.
by Clockgate
Tue Apr 21, 2020 6:37 pm
Forum: Music Tech DIY
Topic: CGS514
Replies: 73
Views: 3480

Re: CGS514

Looks like Elby has gotten around to updating the the CGS114 pcb. Does anybody have any experience with this one yet? http://www.elby-designs.com/webtek/cgs/serge/cgs514/cgs514.htm I bought a set of BOG PCBs recently, and I was supplied with the original ver 1.0 type. It doesn't seem to be availabl...
by Clockgate
Sun Apr 19, 2020 7:23 pm
Forum: Music Tech DIY
Topic: CGS514
Replies: 73
Views: 3480

Re: CGS514

Looks like Elby has gotten around to updating the the CGS114 pcb. Does anybody have any experience with this one yet? http://www.elby-designs.com/webtek/cgs/serge/cgs514/cgs514.htm I bought a set of BOG PCBs recently, and I was supplied with the original ver 1.0 type. It doesn't seem to be availabl...
by Clockgate
Sun Apr 19, 2020 4:28 pm
Forum: Music Tech DIY
Topic: Best of CGS Build Thread
Replies: 1124
Views: 160919

Re: Best of CGS Build Thread

Doesn’t it suck that Elby took the schematics down? Anyway all is not lost: https://sdiy.info/wiki/CGS_Serge_dual_universal_slope_generator Thanks for that, very handy to know. A kindly wiggler also sent me the schematics for the CGS modules about 10 minutes after my first post (isn't muffs fantast...
by Clockgate
Sun Apr 19, 2020 12:44 pm
Forum: Music Tech DIY
Topic: Best of CGS Build Thread
Replies: 1124
Views: 160919

Re: Best of CGS Build Thread

I'm currently building my second BOG, with panel & PCBs from Elby. I am just about to start the CGS114 DUSG, of which the PCB supplied is the original type, rather than the new updated one on the Elby site. Does anyone know where I can find the schematic for the DUSG? The one on Ken's site isn't now...
by Clockgate
Tue Apr 07, 2020 10:16 am
Forum: Expert Sleepers
Topic: Silentway CV to MIDI in Reaper
Replies: 4
Views: 198

Re: Silentway CV to MIDI in Reaper

I disabled the MIDI port in Reaper preferences, and it is now working. Thanks again.
by Clockgate
Tue Apr 07, 2020 6:12 am
Forum: Expert Sleepers
Topic: Silentway CV to MIDI in Reaper
Replies: 4
Views: 198

Re: Silentway CV to MIDI in Reaper

Windows 10 PC.

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