Thank you for the efforts you take to make the screencasts and explaining interesting aspects of the schematics. Lots of good stuff to learn from your videos, rock on!
I put it off for a long time, but i finally made this quad VCA. I also included an inverting mixer with its 4 inputs normalled to the outputs of each vca. this way it mixes all the VCAs that are not connected to something else, so i can use it to mix some channels, but use others independently. thanks for sharing the design with us.
Thanks a lot for your video, really helpful and simplest way I've found to use one of these chips, I'm planning one out now. I had a question about best placement of the signal input attenuation bits: is it better to have them closer to the board or closer to the jack, or no real difference? On the one hand it seems like attenuating at the jack means less noise inside your case, but on the other hand a weaker signal. Thanks again for sharing your work.
I don't know what you mean by closer to board? In general tight designs with short traces is best. But like many things in electronics, it depends on a lot of factors. But don't go overboard... as in, build something that is physically possible. But also don't run feet of wire between stuff either. If you're making a right-angle board design like mine, I would suggest building a fairly compact circuit with all the components, and then running short wires to the panel. If you're really concerned you can use shielded wires to connect the panel jacks, but I don't think it's really necessary in this case.
@@shiftedphase thanks a lot, yeah basically I think I could mount the audio input filtering (4 resistors and a cap) right on each jack and then just run a wire to the board from each right into the 2164. It's a very similar right angle construction to yours, so it's all very short wire runs in the single digit inches. Probably overthinking it but wanted to ask an expert
@@mrquint15 The cap and resistor in series next to the VCA chip should go directly at the chip pin. It's a compensation network required to keep the 2164 stable. The other parts can go elsewhere if you prefer.
Hey man, nice circuit you built there! Is it ok for you, if I use your schematics and build a eurorack PCB in easyeda? I want to make my own PCB from JLCPCB, and want to use the AS2164 instead of the SSM2164.
So do I understand this correctly: The output signal will be out of phase by 180* due to the inverting input used on the opamp? Will this cause any issues?
Thanks for the detail on the circuit, appreciate it.
loving the level of detail in your explanation of the circuit.
Thank you for the efforts you take to make the screencasts and explaining interesting aspects of the schematics. Lots of good stuff to learn from your videos, rock on!
Loving the sounds at the beginning
Absolutly clear! Thanks for sharing!
Thank you! Been strungling with some stuff.. Your explanation made me be able to make it work!
Great! Hope you make lots of cool stuff!
Thanks for breaking the circuit down. Very helpful.
I never knew Dintree =Kilpatrick!
thanks for the indepth breakdown.
I got a pair of these on ebay when i first saw your page.
I put it off for a long time, but i finally made this quad VCA.
I also included an inverting mixer with its 4 inputs normalled to the outputs of each vca.
this way it mixes all the VCAs that are not connected to something else, so i can use it to mix some channels, but use others independently.
thanks for sharing the design with us.
Thank you very much! I learned a lot with your video.
This is super helpful! Thank you, subscribed 👍
Good job and very well explained.
Glad you liked it!
Thanks for this video.
Thanks a lot for your video, really helpful and simplest way I've found to use one of these chips, I'm planning one out now. I had a question about best placement of the signal input attenuation bits: is it better to have them closer to the board or closer to the jack, or no real difference? On the one hand it seems like attenuating at the jack means less noise inside your case, but on the other hand a weaker signal. Thanks again for sharing your work.
I don't know what you mean by closer to board? In general tight designs with short traces is best. But like many things in electronics, it depends on a lot of factors. But don't go overboard... as in, build something that is physically possible. But also don't run feet of wire between stuff either. If you're making a right-angle board design like mine, I would suggest building a fairly compact circuit with all the components, and then running short wires to the panel. If you're really concerned you can use shielded wires to connect the panel jacks, but I don't think it's really necessary in this case.
@@shiftedphase thanks a lot, yeah basically I think I could mount the audio input filtering (4 resistors and a cap) right on each jack and then just run a wire to the board from each right into the 2164. It's a very similar right angle construction to yours, so it's all very short wire runs in the single digit inches. Probably overthinking it but wanted to ask an expert
@@mrquint15 The cap and resistor in series next to the VCA chip should go directly at the chip pin. It's a compensation network required to keep the 2164 stable. The other parts can go elsewhere if you prefer.
Hey man, nice circuit you built there!
Is it ok for you, if I use your schematics and build a eurorack PCB in easyeda?
I want to make my own PCB from JLCPCB, and want to use the AS2164 instead of the SSM2164.
Sure, just please read the info at the top of the page at dintree.com.
Would you want C1 and R2 to swap places? My thought is that the cap should be closer to the 2164's pin. Or maybe its completely irrelevant?
The combination of C1 and R2 form a filter so the order shouldn't matter.
So do I understand this correctly: The output signal will be out of phase by 180* due to the inverting input used on the opamp? Will this cause any issues?
two inverting op-amp stages! minus + minus = plus ... I think (I am not an electromagician!)
it will only be a problem if you need it in phase, but it sounds the same either way