Search found 6865 matches

by IslandPink
Mon Aug 19, 2019 6:32 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 10620
Views: 718450

Re: Nothing In Particular

Interesting alternative to windmills -
https://vortexbladeless.com/
by IslandPink
Mon Aug 19, 2019 12:13 pm
Forum: Speakers
Topic: Fane 12-250TC Retro Speaker.
Replies: 270
Views: 28040

Re: Fane 12-250TC Retro Speaker.

... then hope the outer part of the main cone is not peaking in the 2-8kHz region .... !
by IslandPink
Thu Aug 15, 2019 8:18 am
Forum: Everyones Projects
Topic: Inverted OTL with 6SN7/6AS7
Replies: 93
Views: 4341

Re: Inverted OTL with 6SN7/6AS7

Umm... what's an 'SLB' ?
by IslandPink
Wed Aug 14, 2019 9:18 pm
Forum: Your Fave Artists
Topic: Steve Hillage Band - Live.
Replies: 8
Views: 524

Re: Steve Hillage Band - Live.

DSJR wrote:
Wed Aug 14, 2019 1:47 pm
A love that shelters like an oasis in the sand
It's always there in the back of my mind, that line. Music doesn't get much better than 'Green'.
by IslandPink
Sun Aug 11, 2019 6:39 pm
Forum: Speakers
Topic: Something stirs in the Undergrowth
Replies: 2414
Views: 325185

Re: Something stirs in the Undergrowth

IslandPink wrote:
Sat Aug 10, 2019 4:57 pm
I also measured my birch ply, and it IS 18mm !
:oops: Well I measured it again, and it's 17.5mm ... so this accounts for 2mm out of the 6mm discrepancy.

Meanwhile more progress. Have to call a temporary halt now, owing to visitors next weekend !
Double_more.JPG
by IslandPink
Sat Aug 10, 2019 11:55 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 10620
Views: 718450

Re: Nothing In Particular

Sorry Mark, I just couldn't help myself... Peach is a regular subject of discussion between me and my friend Brian ( who used to sell telescope mirrors ) - as in 'The full Peach' or 'Peached to the max' etc etc. But if you look at his website or blog, you can see how shockingly close he gets to the...
by IslandPink
Sat Aug 10, 2019 9:44 pm
Forum: Your Fave Artists
Topic: What Are You Listening To Right This Minute?
Replies: 3266
Views: 261497

Re: What Are You Listening To Right This Minute?

That's one classy moshpit !
by IslandPink
Sat Aug 10, 2019 6:44 pm
Forum: Everyones Projects
Topic: GM70 PP
Replies: 67
Views: 2219

Re: GM70 PP

Nick wrote:
Sat Aug 10, 2019 6:11 pm
.... If it doesn't agree with experiment, it's wrong. Richard P. Feynman"
Now then Nick - remember what we said over email, about citing Richard Feynman against people in an argument ?
by IslandPink
Sat Aug 10, 2019 6:24 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 10620
Views: 718450

Peach

Processed from Hubble data, by famous amateur planetary astrophotographer, Damian Peach -
http://www.damianpeach.com/hstproc/jup2 ... Bhstdp.jpg
by IslandPink
Sat Aug 10, 2019 5:02 pm
Forum: Everyones Projects
Topic: The Other 13E1 SE-OTL
Replies: 130
Views: 9641

Re: The Other 13E1 SE-OTL

Interesting stuff. Also, so smart it's almost ... now.. what's the word ?
by IslandPink
Sat Aug 10, 2019 4:57 pm
Forum: Speakers
Topic: Something stirs in the Undergrowth
Replies: 2414
Views: 325185

Re: Something stirs in the Undergrowth

I have had a very good look at it. The panel at the back ( front face of the rear horn mouth ) is about 5.5°, so that one is in the calc coming up from the bottom panel. Elsewhere the corrections are things like the cosine of 1.5° which is so close to 1.0 , it does nothing. Anyway, it has all been d...
by IslandPink
Sat Aug 10, 2019 4:10 pm
Forum: Everyones Projects
Topic: GM70 PP
Replies: 67
Views: 2219

Re: GM70 PP

NO.... the DHT filament supplies prove that !
Remember what Einstein said ?
by IslandPink
Sat Aug 10, 2019 4:09 pm
Forum: Speakers
Topic: Something stirs in the Undergrowth
Replies: 2414
Views: 325185

Re: Something stirs in the Undergrowth

Just spent about an hour puzzling over dimensions here, with a ruler and calculator. Something doesn't work out. http://www.hm-moreart.de/101.htm ( Page 2 ) The horizontal dimensions around the bottom bends of the two horn paths ( the 53, 43, 48, 67 and the 125mm end pieces ) ultimately have an erro...
by IslandPink
Fri Aug 09, 2019 8:31 pm
Forum: Everyones Projects
Topic: GM70 PP
Replies: 67
Views: 2219

Re: GM70 PP

A while back, I'd concluded from a bit of searching that the GM70 was very well behaved on grid current and could go at least to 0v bias without problems.
by IslandPink
Fri Aug 09, 2019 8:29 pm
Forum: General Vinyl
Topic: Latest vinyl 'finds'.
Replies: 459
Views: 67766

Re: Latest vinyl 'finds'.

Good stuff.
You've just reminded me that I should look again for Peter Gabriel's first album. So far whenever I've looked in shops it's always the 2nd and 3rd ones that you see.