Search found 7830 matches

by IslandPink
Sun Jul 05, 2020 11:08 pm
Forum: Beginners
Topic: Blackgate Caps
Replies: 4
Views: 53

Re: Blackgate Caps

This is a good question Greg. I don't know what the answer is right now. I am still hoarding and using the few that I have. One option that I have used in limited fashion, and Nick has endorsed to some extent, is the Nichinon ES 'Muse'. Anectodal evidence suggests that using a pair to make up the va...
by IslandPink
Sun Jul 05, 2020 10:59 pm
Forum: Assorted Stuff
Topic: The Audio-Talk Cycling thread.
Replies: 2572
Views: 282261

Re: The Audio-Talk Cycling thread.

Bacon and avocado with gruyere and gluten-free bread.
Standard issue.
by IslandPink
Sun Jul 05, 2020 6:00 pm
Forum: Assorted Stuff
Topic: The Audio-Talk Cycling thread.
Replies: 2572
Views: 282261

Re: The Audio-Talk Cycling thread.

That was fun. Took a trip North up to Rhuddlan Castle ( entrance ) and back via other lanes. Wind was strong but seemed to be helping more than it hindered. Only one short shower, that was at the Castle, i just stood up by a big stone wall and ate my sandwich. Roads still not too busy. Not sure of t...
by IslandPink
Sun Jul 05, 2020 2:39 pm
Forum: Speakers
Topic: Something stirs in the Undergrowth
Replies: 2657
Views: 430881

Re: Something stirs in the Undergrowth

Thanks. I haven't put up any predictions before so here it is : Expansion data in cm, cm^2 and L - Horn1p9m_data1.JPG SPL for 2-pi , although at 100Hz it's likely to be operating more in 1-Pi. There's less ripple in 1-Pi. Nothing to write home about, but past experience suggests horns in this range ...
by IslandPink
Sun Jul 05, 2020 1:53 pm
Forum: Assorted Stuff
Topic: The Audio-Talk Cycling thread.
Replies: 2572
Views: 282261

Re: The Audio-Talk Cycling thread.

Very good.
I'm just planning to go out, not sure ( beyond strong wind ) what to expect, it just rained on me when I went to the bin, against all predictions from the met Office, so a waterproof could be handy.
by IslandPink
Sun Jul 05, 2020 1:05 pm
Forum: Everyones Projects
Topic: GM70 PP
Replies: 159
Views: 18422

Re: GM70 PP

Yes, seems like a good plan. Ought to be possible to push the hours up a bit with less dissipation, and Andrew's supplies.
by IslandPink
Sun Jul 05, 2020 12:16 pm
Forum: Everyones Projects
Topic: GM70 PP
Replies: 159
Views: 18422

Re: GM70 PP

That's disappointing, I've been running my KR300B's for nearly 10 years. I think 211's last longer than 1200 hours.
by IslandPink
Sat Jul 04, 2020 9:58 pm
Forum: Everyones Projects
Topic: GM70 PP
Replies: 159
Views: 18422

Re: GM70 PP

Simon's probably your best bet on that advice.
ps. a couple of us might be interested in piggy-backing on your order to help you save postage - if you are able to meet up again further down the line.
by IslandPink
Sat Jul 04, 2020 8:41 pm
Forum: Speakers
Topic: Something stirs in the Undergrowth
Replies: 2657
Views: 430881

Re: Something stirs in the Undergrowth

Good info, thanks Simon. I will end up with wooden reinforcing outside of the panels because I have to calculate and shape the curve onto something solid first, to attach the fibreboard onto. More incremental progress here . I have decided the mouth section will have to attach separately , from roug...
by IslandPink
Sat Jul 04, 2020 5:42 pm
Forum: Beginners
Topic: Basics of valve amplifiers
Replies: 14
Views: 234

Re: Basics of valve amplifiers

I just bought a bunch of these for another project -
https://www.ebay.co.uk/itm/EF94-6AU6-SI ... Swu79demSf
They should be as good as anything , based on the quality of their other valves.
by IslandPink
Fri Jul 03, 2020 6:22 pm
Forum: Buying and Selling
Topic: Horn Speaker Cabinets on EBay
Replies: 11
Views: 211

Re: Horn Speaker Cabinets on EBay

15mm is useful, anything less than that, not so much.
by IslandPink
Thu Jul 02, 2020 11:09 pm
Forum: Buying and Selling
Topic: Horn Speaker Cabinets on EBay
Replies: 11
Views: 211

Re: Horn Speaker Cabinets on EBay

Yes they are just hopeless in all respects. There is a back chamber there to limit the HF response, but then it should be a tight path first, that gradually opens out through the bends and then into the final flare on exit. How much does firewood for a wood-burner cost, per kilo ? Might be worth £15...
by IslandPink
Thu Jul 02, 2020 12:37 am
Forum: Assorted Stuff
Topic: The Audio-Talk Cycling thread.
Replies: 2572
Views: 282261

Re: The Audio-Talk Cycling thread.

Must be Viz !
by IslandPink
Wed Jul 01, 2020 7:33 pm
Forum: Assorted Stuff
Topic: The Audio-Talk Cycling thread.
Replies: 2572
Views: 282261

Re: The Audio-Talk Cycling thread.

This one is more detailed and the best info I've found so far. Concentrates on cyclists, and long-term endurance exercise. All very watchable, but the last 13 minutes has a summary, 'the good, the bad and the ugly', where he brings together the benefits and risks as they are known at this time. The ...
by IslandPink
Wed Jul 01, 2020 4:48 pm
Forum: Speakers
Topic: Something stirs in the Undergrowth
Replies: 2657
Views: 430881

Re: Something stirs in the Undergrowth

I don't really need go to that trouble, Ali, thanks - I have a lot of unused 13mm fibreboard from the double horn prototype, it's flexible enough and I think it will only be necessary to lightly curve two or four panels of this, to do the last 60cm. My idea is to just cut some curved formers 'spars'...