Leaderboard

While waiting for the replacement I today brought forward my home-built headphone which has been stoved away for a year or so. It sounds really good, even better than I remembered. Perhaps it ages as a good wine. Wonder what happens if I put it away in our wine cellar for a couple of more years? Original home-built Faulty Stax

A bacon, cheese & avocado burger from Super Duper burger in Mill Valley. Fries and a chocolate shake.

It is beautiful indeed. But I have to say, you've had the ping pong table for a while now, and it's driving me crazy that you haven't built some crazy cool speaker enclosures. The sky is the limit. Think of the crazy wave guides you could ping pong!

I used the C3M0350120D in both the Carbon and GRHV. On the bench I tested the amp boards separately and they worked fine along with the GRHV. In the final build with 2 amp boards connected there was oscillation which caused all sorts of odd voltages, namely 400V over the outputs and a GRHV + rail that read 8V. Funnily enough I could get the amp working with the capacitive load of a dvm killing the oscillation when probing over the GRHV outputs and I had music. I replaced everything back to C2M1000170D and all was stable. To be honest I haven’t done enough testing to know whether the GRHV with the C3M0350120D would be ok in the field or not. But hopefully you can gain some insight from my experience with it.

Some similar experiences here,but microchip MSC750SMA170B instead. Was using it on my GRHVs, same issue when PSU was measuring normal under no load (both rail measured around 401V),but dropping to about -180V on B- and B+ also seems a bit off (about 391V) as powering carbon amp which is using now precious C2M100070D. Everything back to normal as I swapped microchip SiCs back to C2Ms... but I would continue trying any alternative option on GRHV.

on the yemenia? nope, he’s basically roasting it at cost: https://levercraftcoffee.com/collections/whole-bean-coffee/products/single-origin-yemenia-qima-alchemy-series-lot-3 For other beans, yeah there’s generally tiered pricing on greens. Full 65kg bags are usually significantly cheaper, before shipping. Then there are places that sell in the 50-65 lb range, then 25, 15, and 5.

Love you man, hang in there buddy, stay strong as you have been.

I bought some 2SC4686a from utsource many years ago. They tested same as the ones I got from BDENT. But I am fairly positive they also sell some fake parts.

Probably going to cut my teeth on one of these designs. http://www.troelsgravesen.dk/Diy_Loudspeaker_Projects.htm

I know, it’s on the list, I just know I’m going to want to go crazy and build something nice. Jodi was sick of hearing about my Roubo after the first week. Can’t imagine how she will react when I build some speakers she can’t even hear 😂

That’s really cool!

Thanks. What beautiful results

Pretty simple, female is V carved .11 with a 60deg bit, male is cut at .02 with a start depth of .09 with the same bit. Male is a mirror of the female. Then glued up and clamped. Once dry the male portion is cut of on the bandsaw (could also surface it off on the CNC but bandsaw is way quicker). Then sand.

That resaw looks awesome. Finally got some time to work on the bench today. Knocked out building the deadman with a walnut inlay to carry on the theme. Also cut and glued down the deadman rail. So close, just need to build the center divider. Then clean up and finish.