For those on an Apple Mac Osmond PCB is really very good. It is now totally free, with no restrictions. It isn't bloatware either, about 10meg.

Me neither. Pin 11 is the S&H rate requiring a 0-5v voltage. But if he ties this to ground, it just means S&H is off. This should not affect anything else. The stripboard layout is all over the place - I can't make any sense of it - he's been on the whacky-baccy. Go back to https://electricdruid.net...

Looks beautiful. I’m still building my three VCOs, I’ll post the finished build in my rack with some demos. I’d love to hear a demo of your quad, especially through the wavefolders. Very inspirational project. :yay: The project is still active if people want PCBs. Julian's panels are also available...

You can try brake fluid.

nrrrd wrote:Thanks. I should have said that I'm in the UK, so something in the EU would be good.

Julian will come in about half the cost of Schaeffer and he is in Devon. Tip-top quality.

A +1 for Julian. He's off the spectrum when it comes to accuracy. His work is worth every penny and is good value for money.

I am a cheapskate myself, but I do try to remember the old adage "The bitter taste of a job gone wrong lasts a lot longer than the sweet taste of a cheap price."

I am in Spain right now. Home late Saturday. Will take a look at your docs on my return, unless someone else picks up the gauntlet.

I can do this and organise PCBs, but to avoid too much to-ing and fro-ing you should cut and paste the schematics you desire into some coherent form. A BOM would be an added bonus but not really necessary. If you have preferred switches, sockets etc. the spec. sheet should be supplied for these.

Great work, thanks for sharing. I am very interested in making a eurorack version of this. I can work with Julian on a euro panel. Of course I'd only work with the blessing of Harald Antes.

Thonk has them

All the 1/4 watts I've had from Aliexpress have been the fine lead variety, with the usual size bodies.

Aliexcuse resistor example

I wrote to Thomas Henry to ask whether I could make and sell a few of his simple LFOs and he said yes, go ahead. I think it is only polite to ask, even though strictly the circuit was so generic he couldn't really complain. It's just good manners.

You might consider Makerbeam. This has a 10mm profile and M3 bolts.
https://www.technobotsonline.com/makerbeam-beams.html

I am up for doing Eurorack version PCBs, but only if Yves agrees to it first - he might like a royalty fee for all his hard work in the past. If this goes ahead I'd like someone to collaborate with checking and testing. The person who lays out the design should not be the one to check his or her wor...

Not mine, this one belonged to Richard Wright of Pink Floyd.

How about a small piece of black heatshrink over each LED? A lot of work I guess.

I'd probably use a 00 size artist's brush and black acrylic paint.

Very professional build. I may have one or two Octoginta II PCBs left, but I am more than happy to reorder stock if there is a demand. Julian also provides lovely panels. Whoop John Rock solid design of the VCO!!! Here's what I did with four of them. http://millionmachinemarch.com/wp-content/uploads...

If what you are trying to do is place that pin in a PCB program, I usually deal with it by placing a temporary pin at the rotation point and group it with the pin I want to rotate, placed on one of the cardinal points. Then I can rotate the grouped pair by 45º by clicking on the temporary pin, ungro...

a +1 for Julian, he does great work, both engraving and silk-screening.

Hi all! So I'm thinking this year I'm going to build my own modular... assuming I don't get a job and just buy a Pittsburgh Foundation or something. :hihi: I also want to build the Transcendent 2000 (yes, the one from 1978, featured in Electronics Today). For both of these, I'd need large plates o'...

I used to use toner transfer, etch and drill all my own boards, but it simply is not worth the time and effort these days.

If you are on an Apple Mac I would recommend Osmond PCB. This has now been made donation ware, free if you don't care to pay. It can add fillets, ie curves, to corners. When two traces are joined at a highly acute angle it is possible that the etching solution used to remove copper from the blank bo...

Osmond PCB for Mac is now free. Previous free versions were limited to 700 pads. Starting today, 12th Jan 2019, Osmond version 1.1.39 (32 bit) and version 1.2.6 (64 bit) are now free. All restrictions have been removed and no license is required. However, donations are accepted. If you have a Mac an...

I just bought one of these on Aliexpress at very modest cost inc delivery. Search for Seven Decade Programmable Resistor and a bunch come up.

1R - 9999999R in steps of 1R using 1% 1/2 Watt resistors.

Great fun, I enjoyed that, thanks.