Search found 490 matches

by Geoff.R.G
Sun Dec 01, 2019 2:49 pm
Forum: Music
Topic: Obits
Replies: 544
Views: 89277
Great Britain

Re: Obits

Irving Burgie of whom you have probably never heard, he wrote The Banana boat song and Jamaica Farewell amongst others
by Geoff.R.G
Tue Nov 26, 2019 10:37 am
Forum: DIY
Topic: Recommended amplifier repairs (non nva)
Replies: 7
Views: 322
Great Britain

Re: Recommended amplifier repairs (non nva)

It looks, from what I can find on-line a fairly straight forward repair, if the only problem is the phono wiring. However, with an amplifier of this age it is always possible that other problems may come to light after the obvious has been repaired. I could rewire the sockets easily enough but your ...
by Geoff.R.G
Sun Nov 17, 2019 11:47 pm
Forum: General Audio
Topic: Amps - Whats in em and why?
Replies: 98
Views: 5004
Great Britain

Re: Amps - Whats in em and why?

You need watts load and distortion all together to form part of a meaningful spec. Even then its close to meaningless, all its telling you is how much power you would not want to be getting from the amp. Lets say it produces 0.1% distortion at 50W into 6 ohm. Ok, does that tell you anything about w...
by Geoff.R.G
Sun Nov 17, 2019 10:39 am
Forum: General Audio
Topic: Amps - Whats in em and why?
Replies: 98
Views: 5004
Great Britain

Re: Amps - Whats in em and why?

Anything beyond a specification and materials list in an advert is hyperbole, including descriptions of the sound. Nva pricing structure would fall into this category if we're being strict. Specification can be extensive and, to the uninitiated, confusing, more so if you don't actually know which b...
by Geoff.R.G
Wed Nov 13, 2019 10:28 am
Forum: NVA Announcements & Information
Topic: Building bridges
Replies: 30
Views: 1537
Great Britain

Re: Building bridges

In conflicts, sometimes one party has to be the “bigger man” Congrats to Savvy for doing that. It also makes commercial sense to have broader discussions about the NVA products rather than the historical baggage....... I’m not sure RD would approve though 😂 Richard just enjoyed making his customers...
by Geoff.R.G
Tue Nov 12, 2019 7:44 pm
Forum: DIY
Topic: Cable capacitance
Replies: 6
Views: 440
Great Britain

Re: Cable capacitance

For a conductor to behave as a capacitor it must have a second conductor in relatively close proximity that is at a different potential (Voltage). If the two conductors are connected together they will not behave as a capacitor because they will be at the same potential. The greater the surface area...
by Geoff.R.G
Tue Nov 12, 2019 7:31 pm
Forum: General Audio
Topic: Amps - Whats in em and why?
Replies: 98
Views: 5004
Great Britain

Re: Amps - Whats in em and why?

That is an excellent example of intelligent troubleshooting, something I have found rare amongst some, so called, professional engineers. I have spent much of my working life fixing software and hardware, you can't fix a bug unless you know what's causing it. To do otherwise is to just cover it up ...
by Geoff.R.G
Tue Nov 12, 2019 11:29 am
Forum: General Audio
Topic: Amps - Whats in em and why?
Replies: 98
Views: 5004
Great Britain

Re: Amps - Whats in em and why?

Here is a tail of a odd failure of a pair of monoblocks I had just built and was running in. Working fine, sounding great, suddenly, they both go into protection. Hmm, well, they both failed, and stay failed, so for them both to go, it must be a common source. Must be excess voltage out of the phon...
by Geoff.R.G
Tue Nov 12, 2019 11:23 am
Forum: General Audio
Topic: Amps - Whats in em and why?
Replies: 98
Views: 5004
Great Britain

Re: Amps - Whats in em and why?

I'm mildly amused at the 'bill and coo' over photos of component innards that seems to be the norm on some forums and user groups. I doubt that 99% of the people commenting have a reliable understanding of what they are looking for...and the 1% who do have a proper understanding know that a photo a...
by Geoff.R.G
Tue Nov 12, 2019 11:02 am
Forum: DIY
Topic: Cable capacitance
Replies: 6
Views: 440
Great Britain

Re: Cable capacitance

karatestu wrote:
Tue Nov 12, 2019 10:30 am
Any twisting increases capacitance i think, even strands in one wire.
Not quite, have a look here Capacitance