My build log - missing parts, questions and suggestions

e-licktronic wrote: 1K and 1K2 resistors quantity updated on Mouser BOM

comboy wrote:1 x 100k missing
Mouser BOM have 91pcs of 100k resistors and you need 91pcs

Ok, then maybe mouser sent me not enough.
Was short 1 resistor during the build but did not look at the number on the bag.

e-licktronic wrote:
comboy wrote:4 LED spacers missing
these are in the Mouser BOM

hmmm, maybe they were missing in the first BOM, as I can't find them in my order history at mouser. I ordered the BOM first thing as the kit was released.

e-licktronic wrote: Thank you comboy for your advices

you're welcome

dinsync wrote:i did start listing the missing parts in my build but alas i gave up, also worth noting there are little to no metal film caps in the bom (instead it uses poly box). You should really use those nice Nichicon metal film if you want it closer to the original machine (i was lucky to have a good stash of these here)

Aren´t most of the film caps in the BOM Metalized poly film capacitors? Although not Nichicon. But how much the brand really effects the result will become an never ending debate for centuries to come

AonFluX wrote: Aren´t most of the film caps in the BOM Metalized poly film capacitors? Although not Nichicon. But how much the brand really effects the result will become an never ending debate for centuries to come

Please post a new topic

Best regards,
e-licktronic

ic 4520N missing
only 2 in bom, 3 needed

edit: I was wrong. 2 are sufficient. I was confused as the IC 58 is listed twice.

I think the LED in the cherry switch picture from the build guide is the wrong way round.
the long leg is the anode (+), but if I insert it like shown in the picture it does not match the screenprint.

my kit is also missing a cherry key.
BOM is correct. seems like a sorting error.
Thank god I have a spare one here

LED 11 was not working. Turns out it was a defective PCB

The LED resistor was not connected to the via next to S10.
No visible damage to the PCB. Even under a magnifying glass the trace looked good.
But the LED only worked after I put a piece of wire from the current limiting resistor to the via.

After a first short test the unit seems to generally work. =D *hooray*
Only problem is Mid and Hi Tom both only produce a short click.
Low tom is working. Any Idea where to look?

main out is noisy and sounds a little bit overdriven.
single outs sound fine.

investigated the non working toms.
Envelopes seem to work, although mid tom envelope levels are lower than the working low tom.
Oscillators seem to be the problem. On both non working toms all 3 oscillators are stopped at -9V