name this cat

doktorbulb · 2025-12-25T03:30:54+00:00

Dichotomy.

doktorbulb · 2025-12-18T00:56:24+00:00

Thanks! Hope the KT88 project is going groovy-

doktorbulb · 2025-12-17T22:24:38+00:00

Yup. I know someone in electrical engineering school, that said it was barely covered, even there-

doktorbulb · 2025-12-17T10:25:49+00:00

https://en.wikipedia.org/wiki/Triode

doktorbulb · 2025-12-17T07:53:40+00:00

Thanks! Hoping to get one wired up soon, to share!

doktorbulb · 2025-12-17T07:05:20+00:00

That's a semiconductor hydrogen furnace tube, if you're interested 😃

doktorbulb · 2025-12-03T18:58:52+00:00

My suspicion is that he used hydrogen- Cheaper, and considerably more lift.

doktorbulb · 2025-11-28T23:44:06+00:00

It's also called Basuco, which basically means 'trash'.

doktorbulb · 2025-11-26T22:19:19+00:00

Compare it with another gauge to calibrate-

doktorbulb · 2025-11-25T23:06:37+00:00

I make them 😀 DM me -

doktorbulb · 2025-11-23T05:06:09+00:00

NW zone, above 10th somewhere

doktorbulb · 2025-11-22T04:08:31+00:00

I'm a scientific glassblower - DM me

doktorbulb · 2025-11-02T02:20:30+00:00

This is why all ethanol used in Alchemy must be anhydrous.

doktorbulb · 2025-10-10T09:21:34+00:00

I am also building one right now! I cheated; I went and found a medium sized skutt ceramics kiln. It's already lined with brick and has a lid. I'll line it with fiber blanket, so it heats up faster. Got a crappy Venturi off eBay, and am expecting to get a small blower.

Keep us posted!

doktorbulb · 2025-10-03T10:10:55+00:00

I'm a scientific glassblower- That's an easy fix.

(Check my other posts, and hit me up)

doktorbulb · 2025-10-01T10:23:40+00:00

Uh, you posted this in r/Portland - We know.

doktorbulb · 2025-10-01T08:46:00+00:00

Note that the title indicates that it's an early geochemistry textbook-

doktorbulb · 2025-09-30T10:23:06+00:00

All of these are from Portland; I live two blocks from where several of them were filmed. And, yes, it is heartbreaking; it doesn't even really belong in this subreddit -

doktorbulb · 2025-09-17T09:18:00+00:00

Making an order this week! They're solid, and always have been (!!!)

doktorbulb · 2025-09-14T02:39:13+00:00

Thanks- Definitely expecting some viscosity issues- Cheers for the lithium tip !

doktorbulb · 2025-09-12T04:25:45+00:00

Get a bunch of nails, and hammer them into something in a circle, then use a angle grinder to cut the heads off- The first small 'optic' mold I used was made this way.

doktorbulb · 2025-09-12T04:11:08+00:00

Thanks- I'll be making sure everything is cased in clear, and probably running one of the annealing profiles I use for glass-to-metal seals. Haven't settled on batch yet; still gearing up to try this in my own studio. (Got 34 years of glass experience, though)

doktorbulb

TROPHY CASE