My Etherwave PCB

Hello everyone,

Today I drew a single sided PCB for the Etherwave in Eagle. Before I actually etch it, I would like to hear the opinion of fellow Etherwave builders. I am not sure about the components and traces being in the right place, and about their distances between each other.

Does anyone know what the dimensions from a real Moog Etherwave board are?


I was also wondering what the aluminum foil you see inside of some cabinets is for?

At least one jump can be eliminated.


But...
where are the ESD protection circuits, built-in buffers like in ESPE01/YAEWSBM module, replacing of LM13700, say, by TDA7052 etc. -- all the best of what was discussed on TW?!

I have a few suggestions, can you send me the eagle files to do the layout corrections?

ILYA

But...
where are the ESD protection circuits, built-in buffers like in ESPE01/YAEWSBM module, replacing of LM13700, say, by TDA7052 etc. -- all the best of what was discussed on TW?!

I am kind of new to theremins and this forum. Built-in buffers look useful and I have updated my layout with the espe01 circuit.  The circuit looks like this now.

What is the advantage of a TDA7052 over a LM13700?

betabox

I have a few suggestions, can you send me the eagle files to do the layout corrections?

I have uploaded my eagle files for you here.

"What is the advantage of a TDA7052 over a LM13700?"


Sorry I meant the TDA7052A, an amplifier with DC volume control:

- can be loaded on phones or small speakers,
- wide gain range and logarithmic  "Gain vs control voltage"   characteristic ,
- 8-pin package vs 16-pin at LM13700

@wannes_dn

I sent you a PM with the reworked PCB.

Just finished my EW, based on this PCB. It is working perfect. Thank you.

At moment I get 7 (!) playable octaves.

@betabox

can you upload your PCB?

Thanks

In the matter, does LM13700 was out of market, really?

and what about short attack? do the

TDA7052A have enought speed of control?

Latency of IC is negligibly small and will be fully determined by the external RC circuits.