audio-talk

Lovely!

I disagree. It depends on the biasing. But also I don't care. We agree on that! On a completely different subject, we spent this morning collecting Yellow Rattle and other seed from a friend's meadow. This is all part of the rewilding of our gardens - they used to be very formal and open under the ...

Nick wrote: ↑Tue Jun 25, 2024 2:18 pm

jack wrote: ↑Tue Jun 25, 2024 2:15 pm

simon wrote: ↑Tue Jun 25, 2024 1:26 pm Is that class D? Looks like it needs a large heatsink?

Class A then AB.

Or to the rest of the world, AB

Depends on the output level...

simon wrote: ↑Tue Jun 25, 2024 1:26 pm Is that class D? Looks like it needs a large heatsink?

Class A then AB.

simon wrote: ↑Mon Jun 24, 2024 9:00 pm I'm seriously considering an all-Class D amplification chain for this time of year...

If you went class A, then you wouldn't have to wait for it to warm up...

Just sayin'

The "Joke" section is the right place for this:

I bought a spare U800 (155-0241-02) and U400 (155-0236-00 or -09) from QService some years ago, just in case

...and the current U800 has a heatsink glued to it now.

I've fixed several vintage Tektronix scopes, including my own 2430a, 2645a and 7904 using parts from QService in Rhodes (of all places).

https://www.qservice.tv/

Really helpful people

On computery stuff, I have just replaced the NVRAM chip in my Tek TDS3032 oscilloscope (stores date/time and other user settings). This was not a job for the faint-hearted, and involved desoldering a 24 pin DIL IC from a board where the PCB designer was happy to pass a couple of tracks between DIL ...

shane wrote: ↑Mon Jun 17, 2024 9:29 am I tried three different ones on my iPhone. All gave different results.

That's Apple for you

We have a few MREs here as #2 son is in the military.

Not bad. Back in my CCF days it was all cans... Now it's sachets like glorified cat food...

That's a positive result!

I've just checked where it was: Hong Kong Bush 21-23 Man Yee Lane Central Hong Kong It was a splendid shop and Mr Chan was a lovely chap; I could have spent hours (and lots of HK$ in there). Sadly, I am told Mr Chan died in 2005. Sad that the Dubai bookshop had all its books sealed in shrink wrap. ...

One for Morgan. Found in a massive bookshop in Dubai... Thank you. One of my happiest moments was being taken to an Aladdin's cave of an electronics shop in Hong Kong. In addition to all sorts of thermionic goodies in the window was a copy of Valve Amplifiers. Stupidly, I failed to take a photograp...

One for Morgan. Found in a massive bookshop in Dubai...