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Ok, so between 15/20 V, make it today

Picture 2: An “audio grade transformer “ didn’t care to color code the wires properly, such that the assembly tech has to attach hand-written labels to tell them apart. Maybe only the decal is custom made? Nonetheless it shows the production volume of this kit. Picture 3 and 4: It’s funny they try to use different colored quick disconnect to do dummy-proofing. Did they not know that those quick disconnects are colored differently for a reason? Pink/red for 18GA or smaller, blue for 14/16GA and yellow for 12/10GA. They used similar wire sizes regardless of the requirement of the quick disconnect, and the yellow one is apparently oversized (loose crimping). So much for a “professionally put together” kit.

if you engage the servo, you'll see the output will hover around zero pretty quickly

I always thought (wanted?? maybe) the "DS" is for Doug's initials..... 😄 Nice review!

Not yet, yesterday had the first working power up and wanted to listen to it a couple of hours 😁

From the picture it looks like you didn't engage the servo?

Episode 3... Still conscious and thoroughly hooked. Will have to postpone Episode 4 until tomorrow evening.

Qu'est-ce que-c'est

And after episode 2, it's quite good. If one can remain conscious at any rate.

Unholy carp, she (Saoirse Ronan) is so good in this!

Oddly enough, after rewatching and not dozing off for more than have of episode 1, this makes much more sense. I'm changing my opinion to 'pretty good'.

Back in Novato to see aja vu and their commendable version of Steely Dan Then they bought out the horn section for a few Chicago numbers And threw in a horn solo and drum solo for good measure. A fun time with all the hits.

This looks interesting...

And another one's singing. Friends, this is my first home experience with stax cans, now with a sr303 bought for a dime. And I guess it'll be a long, long journey... I'm in love with this cfa, its speed and clarity are a perfect match with speed and clarity of staxes, wow... It is refined, delicate and well behaved (apart the offset that needs a screwdriver sometimes... What's the tolerance for balance and offset? Trying to keep em spot on on zero, but slowly drifts away...) Thanks Kevin! 🙏

This Blue Prince game... haven't played anything like it since Outer Wilds. I am loving it. Another puzzle game masterpiece. If you enjoy puzzles this is not to be missed.

^^ this. I had it high in my queue and your post pushed it forward. Not an easy listen. Not that it is not really good. It is pretty great. But it is not for the faint of heart. There are a lot of notes, and they are not in the order that I would expect. But listening deeply there are themes and phrases that emerge that are very rewarding. And some tunes that are absolutely beautiful. Well recorded and minimizes the Jarrett mumble. Side note - last week when I had a friend visiting, I tried to explain - The Köln Concert - It was hard with someone that does not listen to jazz and had never heard of it before.

A friend of mine:

Maybe harder than you anticipate Recently I was sent a not working Blue Hawaii BJT. Turns out the PSU PCB is a clone of Kevins layout ... just flipped upside down, with components firmly mounted on top of the traces ...a year down the road, it went boom, with lifted traces and some literally burned totally. @kevin gilmore has been kind and provided a modified version of his layout to match the mounting studs in the chassis.

I'd use 300b or 2A3 tubes as load be aware that NOS tubes may have different results from new production tubes

Good news: It works! Measured output is 4.9V for the 5V setting, 6.1V for 6.3V, and spot-on 2.5V for the 2.5V setting. I haven’t tested the soft-start function yet — if anyone has good suggestions on how to choose a suitable load resistor for testing, I’m all ears. Bad news: I spent two days figuring out how to hand-solder with a heat pad and heat gun the QFN package. Even when using a stencil, too much paste tends to remain on the pads, which makes them very prone to shorting. As a result, I ended up ruining two boards and some components. At this point, I really don’t feel like assembling the remaining three boards myself. I think it’s best to leave the rest to a proper assembly house. Updates: Soft start works. About 3.5ms rising edge time for 6.3V.

It’s not hard to do a 1:1 clone of the PCB. It’s also a great interview question for a junior electrical engineer to come up with a circuit that does this. However not a lot of them would probably know how a vacuum tube filament/heater behaves.

The 80's are now in full effect with Tainted Love.

Progress report

The Banjo powered jam band energy of New Monsoon. And a choc-ice.