I have the dsp-l8, dsp-d8 and o2-minipops percussion synths.
You can also find them here: https://github.com/hexagon5un/jan_ostmans_synths

I have added a cv input amplifier, so I can set the output amplitude and can have an envelope as cv input. Funny extra is that now I have a thru zero amplitude control :yay: which means that if I have chosen a saw wave with the ramp on the left side when sending a positive voltage to the input, firs...

A great plus was when he distributed the Arduino programs for several drum modules for free so it was relatively easy to build myself, which I did several times.

IF the processor you referring to is an atmega or attiny a resistor of a few kohm is enough since these processors have Schottky diodes to Vcc and Gnd incorporated on the chip.

I did some tests and wrote about it at here

I still have to figure out how well this dac goes *silent* by just placing the reference voltage to 0 volt...

Very nice! It reminds me of the first digital synth I designed back in 1982. It ran on the bus of a Commodore VIC-20; the waves were stored in a static RAM chip. Used a multi-channel clock divider and a multi-channel DMA chip to read 3 channels at once from the RAM. Your demo is WAY more impressive...

The cv for the frequency was delivered by a sequencer which also triggered an adsr envelope cv for a vca.
After that it was sent to a reverb module and to the audio amplifier.
No filter was used and the signals on the scope are directly taken from the output of the generator.

After discovering the free samples from the website https://www.adventurekid.se/akrt/waveforms/adventure-kid-waveforms/ I played with the thought to download some of the free sample packs and incorporate them into a eurorack module. Therefore I first had to build a eeprom programmer to program a 28c...

This one is my favorite

Ennio Morricone one was responsible for many joyful hours, RIP

I use wirewrap wire, solidcore with heat resistant insulation. It depends on what the circuit is but in general it's not a good idea to bundle the wires like this. If there are sensitive analog signals, high speed digital signals or a mix you could end up with a whole lot of cross talk. This partic...

dubonaire wrote: ↑

Mon Apr 13, 2020 6:48 am

For tap tempo you will always need to tap more than twice though. You need to do it a few times to get your own tempo right.

No

https://www.soundonsound.com/series/synth-secrets

This might be very helpfull!

In your case, from this section: https://www.soundonsound.com/techniques ... modulation

Conclusion: Large components=Fat sound only applies to loudspeakers

And I’m an expert: I wiggle for over 65 years (see avatar)

I use wirewrap wire, solidcore with heat resistant insulation.
Looks like this:

No, unbuffered with a switch inbetween, so I can choose between 2x 4mult or 1x 8mult.

I made a dual quad multi and replaced 2 3.5mm connectors with BNC connectors.

Over at electro-music.com a while ago there was a thread about this.
READ more
The writer uses an Arduino to control both the charge current for the capacitor as well as the discharge timing for the capacitor.

standard email is increasingly been put on ships or waiting at ports or customs.

I guess (hope actually) this is a typo?

Screw that "Oh no! It's messy looking" bullshit! .... Nobody is going to be back there looking to critique anyway.

Experts are lazy ba...rds so the least you can do is providing a link to the schematics you are referring to, or better, attach the schematics to your question....

Sure it can, it will draw the max current an opamp can deliver.
Check the datasheet for this value.

No, not realy.
The max output current supplied by a regular opamp (depending on the power voltage) is usually between 20 to 50 mA.
For 82 ohms resistor you need a 0.2 watt resistor.

Make them yourself, no limit to length....