Search found 11851 matches

by Nick
Mon Oct 21, 2019 8:39 am
Forum: Assorted Stuff
Topic: Room Treatment (Split from Owston thread)
Replies: 36
Views: 3295

Re: Room Treatment (Split from Owston thread)

Its never recovered from the flooding it suffered.
by Nick
Mon Oct 21, 2019 12:38 am
Forum: Assorted Stuff
Topic: The Audio-Talk Motorcycling thread.
Replies: 526
Views: 54724

Re: The Audio-Talk Motorcycling thread.

Yep. Loads of watches in the '60's had luminous hands. I must have had two or three over the years when I was a kid. Not just from Russia they all did it. True about the workers getting irradiated, but only came to light later, a bit like asbestos. :shock: As a kid in the 1960s, I collected all six...
by Nick
Sat Oct 19, 2019 7:47 pm
Forum: Assorted Stuff
Topic: The Audio-Talk Motorcycling thread.
Replies: 526
Views: 54724

Re: The Audio-Talk Motorcycling thread.

May be relevant: https://www.horizonsunlimited.com/hubb/yamaha-tech/how-to-check-oil-pressure-32092 "The oil pressure in XT's is not high (I'm basing this on my 2003 model). The engine is mainly (I understand) rolling element bearings (ball, roller bearings) which do not create high back pressure. T...
by Nick
Tue Oct 15, 2019 12:37 pm
Forum: Everyones Projects
Topic: Remember These?
Replies: 723
Views: 48743

Re: Remember These?

I would be interesting to use a variac to tweek the mains to correct for the HT difference and see if there was still any audible change.
by Nick
Sun Oct 13, 2019 9:22 pm
Forum: Beginners
Topic: Biasing question - totem-pole OTL
Replies: 3
Views: 198

Re: Biasing question - totem-pole OTL

Yes the a bank are cathode followers so the voltage on the cathode will follow the bias voltage.
by Nick
Sat Oct 12, 2019 3:46 pm
Forum: Everyones Projects
Topic: GM70 PP
Replies: 87
Views: 4435

Re: GM70 PP

But I guess it can sometimes be obsessing with what you have control over i.e. mains cables, interconnects and the like vs the work on topology.
Exactly, I think that’s why its potentially hard for DIY types like us here to understand the more mainstream HiFi world.
by Nick
Sat Oct 12, 2019 2:13 pm
Forum: Everyones Projects
Topic: GM70 PP
Replies: 87
Views: 4435

Re: GM70 PP

If you are using a valve rectified bias just make sure its up to voltage before the HT. To me the idaa that a crude bias supply is good enough, is like the idea that a ecc83 can drive a gm70 as its not going into A2 so there is no grid current. i.e. rubbish. It always amuses me that a lot of folk se...
by Nick
Sat Oct 12, 2019 12:58 pm
Forum: Assorted Stuff
Topic: bbc live radio streams
Replies: 19
Views: 492

Re: bbc live radio streams

If you are using a USB DAC then just connect the Pi to the DAC via USB and don't bother with the extra DAC. Unless you want to spend more money.
by Nick
Fri Oct 11, 2019 8:57 am
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 10736
Views: 788752

Re: Nothing In Particular

The only Fiat I owned (strada), was in fine condition when I was given it by Kays father where it had lived undercover and did the occasional trip to the shop around Essex. After two years of Yorkshire weather and hills, the bodywork evaporated, the roof liner turned into powder and the gearbox need...
by Nick
Thu Oct 10, 2019 3:34 pm
Forum: Everyones Projects
Topic: GM70 PP
Replies: 87
Views: 4435

Re: GM70 PP

I suspect a one man band selling components for valve amps is a lonely business, with cash flow problems, at times. I am sure, and it wasn't the borrowing money that was the problem, its was the decision to not pay it back. After prompting by a third party a couple of years later, he rang again and...
by Nick
Thu Oct 10, 2019 2:01 pm
Forum: Everyones Projects
Topic: GM70 PP
Replies: 87
Views: 4435

Re: GM70 PP

I am sure Bluebell can do it, its just the owner got into the habit some years ago of calling me up to borrow money off me, then eventually did it one more time and never paid it back. Only £250 but enough to make me never use him again.
by Nick
Thu Oct 10, 2019 12:14 pm
Forum: Assorted Stuff
Topic: bbc live radio streams
Replies: 19
Views: 492

Re: bbc live radio streams

I think Mark uses the pi via USB just fine. No screen though. I used my phone to drive it, but would be interesting to see how it works out with the screen doing the squezebox impersonation.
by Nick
Thu Oct 10, 2019 12:11 pm
Forum: Everyones Projects
Topic: GM70 PP
Replies: 87
Views: 4435

Re: GM70 PP

The problem with Bluebell is between me and him from years ago now, normal sales should be fine.
by Nick
Thu Oct 10, 2019 10:50 am
Forum: Everyones Projects
Topic: GM70 PP
Replies: 87
Views: 4435

Re: GM70 PP

The little Hammond chokes are fine. Buying from Bluebell less so.
by Nick
Tue Oct 08, 2019 2:13 pm
Forum: Valves
Topic: Decoupling...
Replies: 49
Views: 5864

Re: Decoupling...

Yes, that is sort of my feelings, would be easy to measure with a 10R resistor in the 0v line and a scope (and a push pull valve amp). I only have two of those three. It suggests that the supply would see an average of the power output. What would be interesting to see what the time constant on that...