audio-talk

I haven't done anything since Saturday ... but this weekend will be different !

Thanks Steve , the connections from this one are definitely worth exploring.

We need to resurrect the thread about misheard lyrics ! Meanwhile another loan from Dan at work . Matthew Halsall 'Fletcher Moss Park' Very nice modern jazz, the sounds all nice and well recorded, bit heavy on the bass, but lovely stuff. I think Roy Haynes would approve of the last track. Halsall_Fl...

There are all sorts of fun values on there - bias : -765V , grid current : 3.1amps

Something that popped up in discussions on the Joelist today -
http://www.hfti.fr/userfile/by1144l1.pdf
Some nice spec values there. Needs a special boiler for steam-cooling of the anode, apparently.

If I can ever find a second Audyn 4.7u/100V KP-SN, I will send you the pair. I've been poking around while looking for other final bits for the amp, but so far no success.

Nice young fellas with a sense of timing !

Been landing on this track quite a lot on Youtube.
Just ordered a 12" with same for March delivery.

It wasn't a complete frazzle, Andrew - just the little 8-legged things which go off like a fire-cracker !
I've had the small ones working on the 4P1L's happily since we did the prototype work, but those don't dissipate much heat.

There's enough land on the top of the 60mm (ish) heatsinks Andrew supplies to keep the smaller board stable, you tap an M3 hole down each side between the fins.

I made some notes on heater tests for the 45. 5.62AC in was clean for 2.5V DC out. http://www.audio-talk.co.uk/phpBB3/viewtopic.php?f=11&t=7286&start=90 Another data point is that for GM70, with 23.8V DC in, 19.2V DC out is clean. I think you can come down from 9V AC in, to about 8V AC or maybe slig...

More respect for recent events :

Some football mascots solemnly respecting a minute's silence recently :
(More to follow )

OK< but in your circuit as drawn above, you have a diode in the anode circuit, which seems like a shame ( sonically ) .

£1700 ?
Just call me the Capacitor King ( I will wait my chance ...)
https://www.ebay.co.uk/itm/High-End-Bla ... :rk:1:pf:0