Search found 2979 matches

by Synthbuilder
Mon Oct 26, 2020 4:37 am
Forum: Oakley Sound Systems
Topic: Brexit and the future of Oakley Sound
Replies: 14
Views: 394

Re: Brexit and the future of Oakley Sound

My thanks for everyone's thoughts on this matter. For the moment I will continue on as normal.

However, it may be prudent that if you do want something and you live in the EU, then maybe now is the time to order.

Tony
by Synthbuilder
Thu Oct 22, 2020 7:34 am
Forum: Oakley Sound Systems
Topic: Brexit and the future of Oakley Sound
Replies: 14
Views: 394

Brexit and the future of Oakley Sound

I have no real idea of what will happen at the end of this year. I've just been to the government's online help pages and, to be honest, I'm not any the wiser. The basic gist of the information was 'get professional help, it's really complex'. Ultimately, with a no deal looking increasingly likely, ...
by Synthbuilder
Mon Oct 19, 2020 8:53 am
Forum: Eurorack Modules
Topic: Behringer Roland System 100M clone
Replies: 210
Views: 16224

Re: Behringer Roland System 100M clone

This was my photo. I just discovered this from your post on GS. I originally got it from another interested party who had found it on Facebook. I hope it was OK to post it on here. The actual colour of the PCB of the new revision may not be green (it may or may not be green) - however it will have ...
by Synthbuilder
Sun Oct 18, 2020 3:29 am
Forum: 5U Format Modules
Topic: 5U sounding Oscillator, not in 5U format?
Replies: 31
Views: 675

Re: 5U sounding Oscillator, not in 5U format?

In euro I have my Dual VCO module which are the same VCOs that are in the 5U ASV. And which pairs nicely with the DLF which is the same circuitry as the 5U Discrete Ladder Filter (904 and CP3 clone). You do have to build them yourself though. http://www.oakleysound.com/DVCO-e.htm http://www.oakleyso...
by Synthbuilder
Sat Oct 17, 2020 7:49 am
Forum: Eurorack Modules
Topic: Behringer Roland System 100M clone
Replies: 210
Views: 16224

Re: Behringer Roland System 100M clone

Orange vs green (sorry color blind can't see it) is a board stock choice no? We need a PN or rev number. They should change the part number. The green one is on the left. Which is unusual for Behringer as all the boards I have seen from them are orange. The colour is determined by the colour of the...
by Synthbuilder
Sat Oct 17, 2020 7:42 am
Forum: Eurorack Modules
Topic: Behringer Roland System 100M clone
Replies: 210
Views: 16224

Re: Behringer Roland System 100M clone

does it take less time to reach stable tuning? The previous orange boards would never reach stable tuning since the scaling was affected by the surrounding temperature. If you were lucky and the module was always at the same temperature and was calibrated at that temperature, the VCOs would be in t...
by Synthbuilder
Sat Oct 17, 2020 7:34 am
Forum: Eurorack Modules
Topic: Behringer Roland System 100M clone
Replies: 210
Views: 16224

Re: Behringer Roland System 100M clone

Where did you order it from? Not mine sadly. The picture came from a Facebook post. I'd like to have a closer look at one of the new ones to see what other changes have been made. I'm not going to buy one though... I wonder whether they have fixed the unwanted soft synchronisation issue? That's som...
by Synthbuilder
Sat Oct 17, 2020 2:18 am
Forum: Eurorack Modules
Topic: Behringer Roland System 100M clone
Replies: 210
Views: 16224

Re: Behringer Roland System 100M clone

A new version of the 112 VCO has landed. Complete with temp co resistors - these are the slightly bigger resistors (0805 size) near the larger chip in the middle of the board. Basically a surface mount version of my modification. You're welcome Uli. The new board is the green one. So don't buy orang...
by Synthbuilder
Fri Oct 16, 2020 3:16 am
Forum: Oakley Sound Systems
Topic: How to keep the sequencer in "tune" with a separate oscillator
Replies: 8
Views: 189

Re: How to keep the sequencer in "tune" with a separate oscillator

I use a Doepfer A-156 dual quantiser. You can pick these up very cheaply second hand. I think I paid 40GBP (50USD) for mine.
by Synthbuilder
Fri Oct 09, 2020 4:50 pm
Forum: Eurorack Modules
Topic: Behringer Roland System 100M clone
Replies: 210
Views: 16224

Re: Behringer Roland System 100M clone

The 112 uses an lm3046, which might indicate that it uses the thermal oven method of compensation. That's what I thought when I first saw photographs of the back of the module. I thought that there was a VCO on each side of the board which is why I could only see one 3046. However, although the two...
by Synthbuilder
Fri Oct 09, 2020 4:39 pm
Forum: Oakley Sound Systems
Topic: Eurorack Superladder Filter
Replies: 2
Views: 65

Re: Eurorack Superladder Filter

groffcole wrote:
Fri Oct 09, 2020 2:54 pm
I'm curious, are there plans to create the Transistor Superladder Variable Slope VCF in eurorack format?
At some point I might do one, but currently there are no plans to do so.

I am planning to do the Diode Superladder in Euro probably early next year.

Tony
by Synthbuilder
Fri Oct 09, 2020 8:33 am
Forum: Oakley Sound Systems
Topic: EFG Deluxe troubleshooting
Replies: 6
Views: 128

Re: EFG Deluxe troubleshooting

I found that I had missed to solder one of the pads on R25. Well spotted. :tu: Interesting that the peak LED was still working without any negative supply to U3. It just shows that it's always worth checking the power supply pins of each IC when things don't work right. ... but now the FOLLOW led i...
by Synthbuilder
Fri Oct 09, 2020 7:39 am
Forum: Eurorack Modules
Topic: Behringer Roland System 100M clone
Replies: 210
Views: 16224

Re: Behringer Roland System 100M clone

...which is the problem of the Roland/ Malekko 512 model too. Interestingly the 512 does have a PTC resistor in the CV control which should compensate the scaling. See the red rectangular 0805 resistor (R17) below the trimmer. Although this may have been added at a later stage in the production run...
by Synthbuilder
Fri Oct 09, 2020 4:02 am
Forum: Eurorack Modules
Topic: Behringer Roland System 100M clone
Replies: 210
Views: 16224

Re: Behringer Roland System 100M clone

Unlike the majority of analogue VCO modules the original batch of 112 modules have no temperature compensation for scaling. The scale factor, ie. how many volts per octave, is therefore temperature dependant. The more the temperature changes, the more the scaling is out. Scale drift is a real nuisan...
by Synthbuilder
Thu Oct 08, 2020 9:59 am
Forum: Oakley Sound Systems
Topic: EFG Deluxe troubleshooting
Replies: 6
Views: 128

Re: EFG Deluxe troubleshooting

First thing I see when connecting power only is that GATE led is on constantly. The preamp seems to be working, both x1 and x10 gain works, volume works and PEAK led is working as it should. GATE out is sending signal constantly, as is SLEW out. You may have two faults there. That the peak LED work...
by Synthbuilder
Sun Oct 04, 2020 2:57 am
Forum: Oakley Sound Systems
Topic: Completely control of Eurorack SVF with external CV
Replies: 6
Views: 140

Re: Completely control of Eurorack SVF with external CV

Is the 1v/oct tracking on a filter's cv input really just to change the filter's frequency (and tone) based on what key you are playing on your keyboard? It's really about mantaining harmonic structure as you play up and down the keyboard. If filter cut-off does not track the oscillator frequency t...
by Synthbuilder
Sat Oct 03, 2020 5:42 am
Forum: Oakley Sound Systems
Topic: Completely control of Eurorack SVF with external CV
Replies: 6
Views: 140

Re: Completely control of Eurorack SVF with external CV

The CV1 or the CV2 input could be used. Which one you chose will be the one you can live without once you have used it for the master frequency control. This then presents itself as a bit of conundrum since ideally any filter module should have at least two CV inputs available for controlling cut of...
by Synthbuilder
Thu Oct 01, 2020 4:56 pm
Forum: Eurorack Modules
Topic: Behringer Roland System 100M clone
Replies: 210
Views: 16224

Re: Behringer Roland System 100M clone

Looks like Behringer have fixed the scaling drift problem. It's a long video, but it boils down to Tim got in touch with Behringer and they admitted they made a mistake, and told him that all new Dual VCO modules are made differently so as to correct for the scaling problem. He's managed to get one ...
by Synthbuilder
Thu Oct 01, 2020 9:20 am
Forum: Oakley Sound Systems
Topic: EFG Deluxe BAT42 substitute
Replies: 2
Views: 67

Re: EFG Deluxe BAT42 substitute

Sparrows78 wrote:
Thu Oct 01, 2020 6:47 am
Is it ok to substitute these with BAT48s ?
Yes. They should work just fine.

Tony
by Synthbuilder
Thu Sep 24, 2020 7:52 am
Forum: Oakley Sound Systems
Topic: COTA troubleshooting - was working but now silent
Replies: 7
Views: 154

Re: COTA troubleshooting - was working but now silent

bloke_zero wrote:
Thu Sep 24, 2020 4:51 am
... replacing U4 solved it...
Excellent news.

I wonder what happened to it. Those things are usually pretty resilient. Although a short to ground on pin 1 and/or pin 16 with the power applied will kill them.
by Synthbuilder
Tue Sep 22, 2020 2:57 am
Forum: Oakley Sound Systems
Topic: Oakley Eurorack Sequence synced with a pattern sequencer
Replies: 5
Views: 143

Re: Oakley Eurorack Sequence synced with a pattern sequencer

I'm curious if you have any examples of modules that can be used as external clocks. A clock signal is generally one that goes from 0V to +5V and back again in a regular and repeating fashion. However, many modules can take any signal at their clock input. They'll respond, ie. move forward one step...
by Synthbuilder
Mon Sep 21, 2020 6:24 am
Forum: Oakley Sound Systems
Topic: COTA troubleshooting - was working but now silent
Replies: 7
Views: 154

Re: COTA troubleshooting - was working but now silent

bloke_zero wrote:
Mon Sep 21, 2020 5:50 am
I just tried swapping U2 & U4 which made the -12db LP output start working *but* with no resonance - 24db still no audio.
That sounds like U4 could be dead.
by Synthbuilder
Mon Sep 21, 2020 4:58 am
Forum: Oakley Sound Systems
Topic: COTA troubleshooting - was working but now silent
Replies: 7
Views: 154

Re: COTA troubleshooting - was working but now silent

The first thing to do in these cases is check the power supply on the board. Make sure that +15V and -15V are getting to the board and that both pins 2 and 3 are both connected to 0V of the power supply. The best way to do this is with a multimeter on the resistance setting with the power off but th...
by Synthbuilder
Mon Sep 21, 2020 2:38 am
Forum: Oakley Sound Systems
Topic: Oakley Eurorack Sequence synced with a pattern sequencer
Replies: 5
Views: 143

Re: Oakley Eurorack Sequence synced with a pattern sequencer

I'm curious, is it possible to synchronize the Oakley Eurorack Sequencer with something like the Robaux SWT16+? Yes. You can clock both sequencers with the same external clock which will keep both sequencers in perfect sync. For more complex patterns the Oakley Sequencer can be clocked (or shifted)...
by Synthbuilder
Sat Sep 19, 2020 3:06 am
Forum: Oakley Sound Systems
Topic: DLF BOM question
Replies: 2
Views: 91

Re: DLF BOM question

snowtires wrote:
Fri Sep 18, 2020 7:14 pm
Does that mean any ferrite bead will work there?
Yes. All you need to get is a standard axial wired ferrite bead,

For example, Farnell: 9526820, Mouser: 81-BL01RN1A1F1J.

Tony

Go to advanced search