Lofifuture

CD4069UBE Schematic + Possible Patreon Easy EDA team?

Added 2021-07-31 03:28:54 +0000 UTC

Here is the basic (and confirmed) DC4069 LFO schematic. It can run on as little as 3.3V up to 12V no problem. If you feed it a single rail 5V supply, you get a 0-5V peak to peak lfo voltage output, great stuff!

I based this on a nice LFO schematic from http://scott.joviansynth.com/

The one posted there didnt quite seem to do the trick for my, so here it is my version.

The 10UF timing cap can be changed to change its frequency range. The bigger the slower, the smaller the faster. This will also go into audio range easily!

A 1m ohm pot goes between the rate a.1 / 1.2 (and b.1 / b.2 respectively)

This leads me onto my next topic. I am thinking of making a second EasyEDA account, where I can add team members to projects (in this case patrons) so you can all view the schematics and PCBS i am planning to post here for patrons only. I hope it would also make it much easier for you all to manufacture your own PCBs with JLCPCB when you need them! Would anyone be interested in that sort of system?