audio-talk

Morgan Jones wrote: ↑Thu Mar 07, 2024 10:55 pm I'll measure what it produces first. But it certainly didn't glow a fluorescent tube when held in contact.

My one uses 8xAA, so 12V rather than the 6V of yours... Same available current, twice the voltage, so as you say, presumably pokier.

Arrived. Disappointment. Insufficient poke. Just about managed to produce an orange glow in an 85A1 neon). I am told that: If it's blue, it's air. If it's green, it's barium. If it's pink-purple it's argon. And Jack's large nixie managed a blue glow with his tester, which I assume is pokier. Return...

Damn! Thinking about getting a ZWO Seestar S50… all Max’s fault! Ages since I’ve owned a telescope… decades…

Reviews are insanely good

Morgan Jones wrote: ↑Tue Mar 05, 2024 10:21 am Don't you just hate people who hide what they've done?

Probably less than £10 to make including box and all components/pcb, then charge €250 for a new one!

This is probably very similar:

https://www.aliexpress.com/item/1005005975707232.html

It's available on Amazon for about £17

As suspected, it's a 50% duty cycle, 1 second on, one second off RF pulse at 270kHz. Likely a couple of KV, but can't measure that at the moment - I'll have to get my trusty 40,000V probe out...! I can't get the board out easily as they've deliberately sealed it into the box and potted some of the c...

Photograph would be nice. Measurement would be really nice, but if (as I suspect) it produces high voltage, but AC, it would be difficult to measure. Inside it, I would expect a ferrite transformer, with or without voltage multiplier (which should be easy to spot). Waving a scope probe a foot away ...

Nice to see you there. It seems the Voltarc company went bust some time ago, and I couldn't find your natty little tester anywhere. And idea of what it produces on its aerial? AC, DC? Voltage? It wouldn't be difficult to knock up something. They are around but are now called "Masonlite ELT – E...

A pretty good day. Three AT types (MJ, DtB & Thomas) rocked up and SWMBO and I managed to sell a fair bit of ephemera.

10% off on a Tuesday for OAPs. They never ask my age - why not? ...or as a replacement for HRT therapy - moderate those hot flushes... Back in the day when I was working in the City of London, in the Summer, the data centre staff used to charge a quid for 5 minutes in front of the chillers - they'd...

Take to Audiojumble or restore? ESL 63s

These were Sir Clive Sinclair's (allegedly). His cat has savaged the "gloves", he smoked like a chimney and stood coffee cups on them.

Sell or keep?

Dave the bass wrote: ↑Sat Mar 02, 2024 10:43 am

andrew Ivimey wrote: ↑Wed Feb 28, 2024 9:10 pm There's nothing Spanish about 'this video is unavailable ' - or is it my phone? !

I dunno MrI, it seems work ok on my phone, laptop and tablet.

Maybe it's a Bedford thang?!

If he's still in north Africa, it might be local mores...

Super stuff. Really lovely

have never yet been really cold. If you have never been, I can thoroughly recommend Iceland. Iceland's a doddle! Lovely as it is (we really like it), it's not that cold... Try spending a winter in Newfoundland and Labrador - we hit -40C (before windchill) in Labrador which I remember well as it's t...

Could be right, too. I do like a nice bit of physics. However, when I visited a lab in a desert (low humidity, doncher know), we were instructed to wear cotton only because of the static problems. This was fine for me because as commented by a friend, "Sartorial and elegance are just words to ...