joelorigo
Well-known member
I am making a shopping list for the Duocast. Is the 15V diode on the parts list this?
It's really not that critical.
As long as you don't apply more than 9V (or 15V if you used the LT1054 charge pump) then you don't really even need the diode.
Has this since been removed? I don’t see it in the build doc but maybe I didn’t look hard enough.It's there to protect the charge pump from over-voltage.
I should probably make a note in the build docs that it needs to be 9V if a TC1044 / ICL7660 is used instead of an LT1054.
On the other hand, I'm not really a huge fan of parallel (to-ground) diode protection, so it might even be removed in a future revision.
Tone-wise it serves no purpose.
Mouser is a daylight robbery. And their interface...oh boy.And Mouser is frequently significantly more expensive than Tayda. I have no idea why! Sometimes the price differences are small, sometimes huge. It's the same with my local electronics stores. I once went local to get a few clear blue LEDs. At Tayda they were around 5c but at my local store they were almost $4. That's crazy! I've never had any problems with the cheaper Tayda versions either - as far as I can see they are the same thing.
The 8-pin IC socket that I buy from Tayda for US12c is around US$5 at Mouser. Again, I have never had any problems with the 12c Tayda sockets and I have used literally hundreds of them.
I might still order enclosures from Tayda since I can't find any other UV printing service. Still working on the designs though.
I have about 10 to order, with UV printing and drilling, so I guess it makes sense. I'm also missing some elusive pots.To Germany, I found the break even point was 6-7 enclosures. Once you start including pots then it's great.