Thanks to 01235813 for the pics.

He took LSD.

Because it needs a VCS3 Card.

I measured the voltages at the banana sockets on my bench 208
-0.67V for the EG when off
-0.025V for the pulser when off
-0.035V for the sequencer when slider to 0

Hi The Hub for 208c and Easel Command is available now and can be ordered pre-built or DIY from http://www.portabellabz.be/hub.html The Easel Command's PSU is strong enough to power 3 cards, the Hub own power option is nod needed. IMG_1554.resized.JPG IMG_1555.resized.JPG IMG_1556.resized.JPG

The female connector is a 10 (or 2 x 10) pin edge connector with 3.96mm pitch, can be found on ebay or Mouser part 587-306-50-010. The Mini Distro Board is an easy solution as long as your Easel's PSU is able of enough power, early BEMI units have a weak PSU, more details in https://www.muffwiggler....

This reminds of an often reported issue of the "classic" BEMI Easel units. Maybe the circuit is the same in the Easel Command ?

There's a switch, it is explained in the manual addendum https://buchla.com/guides/208C_addendum.pdf

Btw, the 208 ToolBox offers sequencer stages number CV input and 2 stages mode, amongst other useful features http://www.portabellabz.be/toolbox.html

https://www.s8jfou.com/the-peeps-music-box

Please do

In the 208 the +5V rail is used to power the LEDs and for LM301 compensation on card 9 only, it still can work with +3V instead of +5V.

+3V on +5V is too low. Could be the LM7805 is weak and can power the 208+218 but not the 208+223e.
I'd start with replacing the LM7805 on the distro board and see if it solves the problem, can you do this ?

If so the LM7805 is faulty or the 223e drains over 1A on +5V which is very much ?

Not to help, this doesn't occur with my own 223e powered by the same PSU, all works perfect and I'm not able to reproduce the issue.

Here are the details to upgrade a MK1 unit http://www.portabellabz.be/images/sq1/M ... pgrade.pdf

Here are the details to upgrade a MK1 unit http://www.portabellabz.be/images/sq1/M ... pgrade.pdf

I'm still thinking to it and some nice implementation ideas for the 208 are coming. Stay tuned.

I'd rather ask Luther (user captnapalm on Muff) for a custom Almost Zero case and resell the Easel one.

Tony Miln from Soundgas just got his Cornwall Synthi A back from Portabellabz headquarters with cool mods and cards and he loves it.

The only possible issue is the size, the 1/2W resistors may be larger than 1/4W. Electronically, it's safe.

My girlfriend.

Are you saying that my products are not collectibles ?

Factory program cards sound better for sure !

Obviously something's wrong on card 8.
Try and swap IC1, IC2, IC4, VT1, double check solder joints, resistors and caps value...

The sine is ok, so the 2N4339 is ok.
The pA726 manages pitch only, it's not related to the waveshape.