808 Bass Drum Clone Eagle PCB & CNC Gcode

kropo · Joined: Jan 29, 2019 Posts: 16 Location: Finland

Hi

Any ideas on the ferrite beads? I saw on some topic that 10r or was it 10k resistor or was it capacitor could do it also?

Regards

Jake

elmegil · Posted: Tue Mar 19, 2019 6:44 am Post subject:

A 10R resistor is pretty useless, and if the module draws any significant current it makes the rails unstable.

I doubt a bass drum voice *does* draw much current, but if I didn't have ferrites I'd just put in a wire jumper. It's just HF isolation on the rails, it's not as critical as even the bypass caps.

kropo · Joined: Jan 29, 2019 Posts: 16 Location: Finland

Hi

Thanks, is there any specific ferrite value that should be used?

Regards

Jake

elmegil · Posted: Tue Mar 19, 2019 8:13 am Post subject:

IME ferrite beads are ferrite beads, and I've never seen anyone specify a particular part/imedance/etc. It just needs to be one that fits the space available.

kropo · Joined: Jan 29, 2019 Posts: 16 Location: Finland

Hi

Thanks for helping. I saw different kind of values on Mouser but I’ll just order something for this.

Regards

Jake

kropo · Joined: Jan 29, 2019 Posts: 16 Location: Finland

Hi

Question about the midi cv drums, can this be used with normal midi devices or do I need to have something else? Not familiar with the sysex messages. Can I example trigger these with my MPC via midi?

Regards

Jake