#valves — Public Fediverse posts on home.social

Psychedelic @[email protected] · 2026-08-22 · 04:41 UTC

I had some superb luck this week with tubes I bought. I got hold of 5x EF91s for just £5 with shipping, and while two of them are Mullard, the other three are actually Marconi-Osram Valve, made in 1958 and in their original boxes. I'm super happy about that as the Marconi-Osram tubes are rare, and these sound superb in my Little Dots. I actually have well over 20 of these EF91s, most made in 1958 but some spanning up into the 60s before the Hammersmith and Gateshead factories shut down. The ones I have made in 1957 also have heaters that flash brightly on cold-start.

#Tubes #Valves #VacuumTubes #VacuumValves #Vintage #VintageElectronics #Electronics

#tubes #valves #vacuumtubes #vacuumvalves #vintage #vintageelectronics

Andgopink @[email protected] · 2026-05-14 · 15:17 UTC

Thats nearly summer 🌞
Got stuck on developing Revit drawings
All things engineering #revit2023 #hvac
#buildings #valves #wastewater #watersupply

#revit2023 #hvac #buildings #valves #wastewater #watersupply

SWLing Post @[email protected] · 2026-05-13 · 11:55 UTC

From Compactrons to Nuvistors: Vacuum Tubes’ Last Hurrah

https://swling.com/blog/2026/05/from-compactrons-to-nuvistors-vacuum-tubes-last-hurrah/

#DennisDura #Hackaday #Tubes #VacuumTubes #Valves

#valves #vacuumtubes #tubes #hackaday #dennisdura

Yvan @[email protected] · 2026-05-06 · 13:34 UTC

I do not have a "radio valves" problem.

And I do not need one...

But just over the way in Peterborough: "Large amount of radio valves stored in containers in shed moving and don't want to go in skip"

https://freecycle.org/posts/101911394

I'm not sure what hashtags to put on #radio #valves lol... but yeah, if anyone wants a "large amount of rdio valves", there ya go. The post lacks... detail.

#radio #valves

Ricardus @[email protected] · 2026-03-15 · 04:29 UTC

I can't decide is on v2 of my Millett tube preamp I should use ON and OFF at the power switch or 1 and 0.

#Audio #Preamp #VacuumTubes #Valves #On #Off #1 #0

#audio #preamp #vacuumtubes #valves #on #off

Ricardus @[email protected] · 2026-03-12 · 01:58 UTC

I'm working on v2 of the Pete Millet mic preamp. I've had the parts to mostly finish it for about a year, but kept it on the shelf for no good reasons. But I've needed to do something to take my mind off the stress of these last few months so I took it off the shelf.

Both main PCBs (the yellow ones) are "permanently" mounted, and I mounted the female input XLR's. I also wired them to the inputs of both boards. It's coming along slowly but surely.

#Audio #Preamp #Tubes #Valves

#audio #preamp #tubes #valves

WinFuture.de @[email protected] · 2025-12-19 · 10:56 UTC

Der Traum von #Valves Steam Machine lebt längst in Mini-PCs wie dem Geekom A8. Mit kompakter Bauweise, leisen Lüftern und AMD Radeon 780M kann das kleine Gerät aktuelle Titel auf den TV bringen. https://winfuture.de/videos/Hardware/Statt-Steam-Machine-Mini-PCs-koennen-mehr-als-die-Konsole-28227.html?utm_source=Mastodon&utm_medium=ManualStatus&utm_campaign=SocialMedia

#valves

Pyrzout :vm: @[email protected] · 2025-11-25 · 21:25 UTC

Build A High Voltage Supply For Vacuum Tube Work https://hackaday.com/2025/11/25/build-a-high-voltage-supply-for-vacuum-tube-work/ #powersupply #vacuumtubes #MiscHacks #valves #tubes

#powersupply #vacuumtubes #mischacks #valves #tubes

[email protected] @[email protected] · 2025-11-04 · 20:32 UTC

#SpaceGaming:

#Zocken auf #Linux - Besser als du denkst!

Windows nervt mit Bloatware, Zwangsupdates und fragwürdiger KI-Integration? Der Support für Windows 10 läuft aus und für Windows 11 braucht man neue Hardware? Dann ist es höchste Zeit, #Gaming unter #Linux eine Chance zu geben!

Erfahrungen als #Linux-Neuling und zeige dir, wie einfach es ist, #Linux und #Spiele zu installieren. Besonders dank #Valves #Steam #Deck und #Proton hat sich viel getan. )

https://m.youtube.com/watch?v=ojlHTmMXVdo

#spacegaming #zocken #linux #gaming #spiele #valves

Rishika Chavan @[email protected] · 2025-10-10 · 08:05 UTC

Aerospace Valves Market Set to Reach $14.68B by 2028

The global aerospace valves market was valued at USD 10.42B in 2020 and is projected to grow to USD 14.68B by 2028, at a CAGR of 4.18%. North America led the market with a 39.06% share in 2020, driving advancements in aircraft systems.

Source:
https://www.fortunebusinessinsights.com/aerospace-valve-market-105854

#Aerospace #Aviation #Valves #MarketTrends #AircraftSystems #Engineering #Innovation #AerospaceValves

#aerospace #aviation #valves #markettrends #aircraftsystems #engineering

Gerrard Hydraulics @[email protected] · 2025-09-29 · 02:21 UTC

Hydraulic Valves You Can Rely On

From precision flow to secure pressure control, Gerrard Hydraulics supplies a wide range of hydraulic valves to keep your systems running at their best. Choose from:

Lock/Check Valves

Diverter Valves

Pressure Control Valves

Flow Control Valves

Directional Control Valves

Selector Valves

👉 Explore the full range: https://gerrardhydraulics.com.au/product-category/valves/

#Hydraulics #Valves #Engineering #GerrardHydraulics

#hydraulics #valves #engineering #gerrardhydraulics

C. @[email protected] · 2025-08-31 · 16:57 UTC

Subject: complaint about cargo-culting audiophools and the #marketers that exploit them

I saw a new #scam yesterday. Well, new to me. It's probably been around forever.

There are many, many #fraudulent products and ideas out there that target the self-described "audiophiles". And because such #audiophools never do double-blind tests, they always convince themselves of just how well the #scammy products work ("you are the easiest person for you to fool").

Examples of long standing:

Super-thick "oxygen-free copper" #cables for #speakers or #interconnects, being sold at 100x the price of regular cables.

Electrically shielded fiber-optic cables (!).

Paint pens to colour in the outer edge of CDs and DVDs.

Systems to run your equipment from #batteries so as not to contaminate them with that dirty mains #AC.

#Tubes / #valves instead of solid-state #amplification.

... and on and on.

Well, yesterday I was looking for some opamps (tiny little chips, used everywhere), and came across a place selling replacement #opamps for use inside stereo equipment. You can get perfectly good designed-for-audio opamps of good quality for a few bucks each. Upgrading your equipment to better opamps sometimes made sense in the 1970s, but not now. The ones used from the factory are fine.

But no, this one was selling fancy opamps, designed for *RF* use, not audio, which normally cost $10-20 each, in fancy little metal packages, for hundreds of dollars apiece.

"A fool and his money ..."

#marketers #scam #fraudulent #audiophools #scammy #cables

Paul Rigby @[email protected] · 2025-08-22 · 10:09 UTC

AUDIOPHILE MAN - HiFi NEWS: TUBE BOX S3 B FROM PRO-JECT
The Tube Box S3 B – compared to the smaller Tube Box E – features its extensive loading options all on the front panel: https://theaudiophileman.com/tube-box-s3-b-from-pro-ject/ #amplifier #HiFi #news #audiophile #project #tubes #valves #phono #turntable

#amplifier #hifi #news #audiophile #project #tubes

N-gated Hacker News @[email protected] · 2025-08-17 · 11:32 UTC

🎩✨ Behold, the Nuvistor: the "innovation" nobody asked for right before #transistors took over the world. This article waxes poetic about obsolete tech while desperately trying to make #valves sound relevant—spoiler alert: they weren't. 🦖📻
http://www.r-type.org/articles/art-150.htm #Nuvistor #ObsoleteTech #Innovation #RetroTech #HackerNews #ngated

#transistors #valves #nuvistor #obsoletetech #innovation #retrotech

Hacker News @[email protected] · 2025-08-17 · 11:32 UTC

Nuvistor Valves

http://www.r-type.org/articles/art-150.htm

#HackerNews #Nuvistor #Valves #technology #innovation #electronics #vacuumtubes #engineering

#hackernews #nuvistor #valves #technology #innovation #electronics