Pars

You can have boards run for quite cheap at places like seeedstudio, etc. Upload the zip of the gerbers, make your selections, etc. and you're good.

The Gerbers for Kevin's attenuator board are still available. I believe Kerry had worked up a controller board with rotary attenuator for that as well, including the software? One control that looks good and has good reviews is the Muses72320. I'm currently (very slowly) building a UGS Muse preamp based on the Pass UGS and using the NJR MUSES72320V-TE2-ND IC. There is a project on diyaudio using these chips and apparently can handle up to an 8 channel control. https://www.diyaudio.com/forums/swap-meet/322983-muses-volume.html. The chips seem to be in short supply right now (both Digikey and Mouser carry them, both out of stock).

Happy Birthday Marc!

Happy Birthday!

I don't Kerry, but I used to buy directly from Linear Technology. Now that they have been bought by ADI, I don't see how to do that on their website. I couldn't check to see if they even have availability.

Happy Birthday!

Happy Birthday!

Happy Birthday!

I think your comp. capacitors should be fine, but I don't know for sure. On the THAT340 replacement, no changes required. Just make sure you put them in correctly (N-JFET for NPN and P-JFET for PNP).

https://store.nacsemi.com/Products/Search?part=lsk389

Happy Birthday Wayne!

Happy Birthday Steve!

Happy Birthday Jim!

Yes, very sorry for your losses gents.

This was only on the one which I repaired for tkam, but I couldn't really tell much difference between them. I think tkam liked the zf better.

Happy Birthday tall one!

With the '70s shag carpeting, an ashtray would not feel out of place...

Happy Birthday John!

The two outside pins are an Enable pin and a Sense pin. Ignore and use the center 3. This epay listing has 5 pins and discusses these. Amb's don't use them. https://www.ebay.com/itm/253306361665?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=253306361665&targetid=1263104806246&device=c&mktype=pla&googleloc=9021654&poi=&campaignid=10459841961&mkgroupid=123050526620&rlsatarget=pla-1263104806246&abcId=2146002&merchantid=6296724&gclid=CjwKCAjwp_GJBhBmEiwALWBQk5ELjVxC7yJqYc4yYFUNldtxaPJKo5meQI6te--2Bv8zild8S4IahBoCzIYQAvD_BwE

And this from the folks that brought us RoHS...

So... my Windoze machine (new in June) is screwing up on OneDrive stuff. IT wanted to give me a Macbook Pro instead. Since I've been a Mac user since the '80s, I was game, until I discovered that Macs don't deal with OLE embedded docs well. No go on embedded pdfs or ppt or anything other than Word or Excel. WTF? Disappointing, but since I really need that at work, so no go on the Mac. Shit. Is this MS or Adobe, or both on this?

Been watching the series version of Hanna. With Miriele Enos and Joel Kinnaman from The Killing, etc. Pretty good so far. Kind of followed the movie somewhat the first 3 or 4 episodes some. I'm enjoying it, but I also liked the movie.

I guess no one mentioned it, but the MPSA42 is the same as the KSP42. Mouser has 14,000 in stock (Central Semi).

^ Holy shit! RIP Charlie...

The caps are probably 160V. I've used 1/4W resistors as well. I wouldn't think there would be any current going thru these, but haven't measured or calculated it.