audio-talk

I looked up ECLL800. Looks like a nightmare waiting to happen. With shared cathodes, unbalanced anode currents are a given. And that phase splitter looks proper dodgy. I didn't see any audio measurements in the Practical Wireless article. If anyone can resolve that, it's you! Accept the challenge! ...

What an interesting valve. A one socket push pull output stage. I've got 10 of those, NIB. They were for a project that, like many others, I've not yet found the time for. At one time I had a thing for "spud" amps, so these made sense. E = 6.3V, C = Triode, LL = 2 x Output Pentodes, 8 = B...

12,000! Blimus! If you have any 6SJ7 (octal small-signal pentode), I would like a couple. I have about 1,500 valves, so I consider myself well-stocked. Do you need anything? Pentode stock: ECLL800 EL84 6BQ5 / EL84 C3g C3m 4P1L GU-50 / LS-50 GU-81M 7591S 12GN7A/12HG7 JAN-6AG5 RS1003 / SRS551 Sub min...

Often, stuff that glows. All depends, really. I am on the lookout for an aluminium fan (the kind valve Tek oscilloscopes had) to put inside my temperature cabinet. Moving magnet cartridges without styli for measuring in my ongoing cartridge investigation. Enamelled copper wire. But probably not cap...

Morgan Jones wrote: ↑Mon Feb 26, 2024 11:28 am So, what are you taking? Anything I might be interested in?

All depends what you're interested in !

Loads of nice BHC & RIFA caps...

Lots of stuff for building things

Got to be said.

Sh .. sh... Shockingly Shoddy...!

Not unexpected, but still grim.

https://www.bbc.co.uk/news/live/world-68316979

Mike H wrote: ↑Thu Feb 08, 2024 6:09 pm Wow. Remember making a Airfix kit of one of them.

Here's another one of Hanno from Sharjah... Note the HUGE landing gear to cater for horrid airstrips...

Fascinating stuff. Croydon really caught it during WWII on two counts - firstly, the airport and secondly because German bombers that were being intercepted by fighters, when damaged, often just dropped their bombs short of their target (typically docklands) and ran for home. Croydon thus caught a h...

Mike H wrote: ↑Sun Feb 04, 2024 9:34 pm Sounds like them. Some had like a lightning bolt symbol printed on, I remember.

Allegedly, they were supposed to stop folk getting car sick...

andrew Ivimey wrote: ↑Sun Feb 04, 2024 10:11 am Yeah but does it have a 100k earth resistor!!!?

Well, it's 10 times better than most earth straps which are 1 megohm, so it must be good!

See they do earthing shoes as well. Wonder how much better they are than these https://www.safetecdirect.co.uk/products/fc03/portwest-fc03-compositelite-esd-anti-static-perforated-safety-clog-sb-ae?sku=fc03bk/6&gad_source=1&gclid=Cj0KCQiA5fetBhC9ARIsAP1UMgFkbbFmfdF8s-cusqsPlbcqOL7qDGJtfFLvN...

No... but now second on the todo list...