Recent content by jubal81

Beautiful!! Really nice work and a great result for a first go at it! I'm working on a Mojotone Princeton and waiting for the custom cabinet. Hopefully not much longer. There were some mistakes in the Mojotone documentation and I wasn't thrilled with the quality of the small parts. Next time...

It's a long shot, but the cathode wire and output wire are touching, which could mean a bit of capacitive coupling.

A compact function generator would be pretty handy.

https://www.mouser.com/c/connectors/ffc-fpc/ffc-fpc-connectors/?number%20of%20positions=6%20Position&pitch=2.54%20mm

What's perfect for back lighting is a reverse-engrave material, where there's a clear layer on top and a masking layer on the back that can be engraved. I've done that, too, and it's pretty awesome.

It's a dual layer plastic meant for laser engraving signs. The indicator is a frosted acrylic that can be laser cut. Thanks for the kind words! It took a lot of time and work to get it all dialed in. Dude. Seriously. Yes. But go ahead and do one that can handle up to 3 channels. I haven't seen...

PPCB chips the brain of the bypass switching. Works great!

I have that FA400 and it's useless. I've pondered just getting a desk fan just to keep the fumes directly out of my face.

I voted A because it makes wiring easier.

I liked this one, but I seem to remember it had a lot of hiss. Always wondered about swapping the OTAs for THAT Corp VCAs but never got around to trying that.

Count me in for a test unit.

@Cabintech , any idea on what the unit cost will be?

Really appreciate all the effort you put into these write-ups, Chuck! I'm curious what you think about scaling those resistor values with respect to low-noise performance. FET-input opamps need almost no input bias current, but how do you weigh using a very large resistor to supply it...

My input would be to include the voltage regulators on the device, even if it ups the cost. It's a good tradeoff for convenience. I also like the idea of jumpers or some other setting to quickly configure the module for different applications (parallel, series, stereo, etc.).