Search found 198 matches
- Sat Sep 02, 2023 11:32 pm
- Forum: DIY
- Topic: Attempting to solve hum on p80/s300
- Replies: 23
- Views: 19194
Re: Attempting to solve hum on p80/s300
Ah the fun of EM field pickup. One of the useful things i've discovered over the years is the usefulness of an input shorting RCA plug. Make em up, fill up all your unused inputs with these things. Oh and solder a wire to one of them and use it as an earth wire to experiment with.
- Tue May 30, 2023 10:37 pm
- Forum: DIY
- Topic: Another DIY SS Amplifier with NVA Boards
- Replies: 372
- Views: 151297
Re: Another DIY SS Amplifier with NVA Boards
Nice. There are technical reasons why the driver stage should be driven from a higher voltage than the output stage. Not sure they apply to a darlington output setup, i'd have to think, and my brain seems to be offline.
- Tue May 30, 2023 10:35 pm
- Forum: General Audio
- Topic: Leather platter mats
- Replies: 7
- Views: 2127
Re: Leather platter mats
Many many moons ago i tried 2 different types of leather, one with a shiny side, one suede. I couldn't get excited about the one with a shiny side, up either way. The floppy suede one however is the second best option i found, and the best without a record clamp. All completely subjective of course.
- Wed Feb 22, 2023 7:12 am
- Forum: Admin-Intro-Chitchat
- Topic: Jokes & Funnies
- Replies: 3573
- Views: 1163658
- Sat Feb 11, 2023 11:00 pm
- Forum: ebay highlights
- Topic: NVA turntable
- Replies: 15
- Views: 14170
Re: NVA turntable
Interesting cartridge install. I doubt that is optimal.
- Mon Feb 06, 2023 10:27 pm
- Forum: DIY
- Topic: Building a DIY amp with NVA amplifier boards
- Replies: 346
- Views: 210900
Re: Building a DIY amp with NVA amplifier boards
For the input and output stages I now have a curved tinned wire going over the top of the board and connecting thd two caps. I do worry this is not optimal and that the bus bar between them should be as short as possible. You mostly see psu caps very close together with a short link between. Do you...
- Mon Feb 06, 2023 3:24 am
- Forum: DIY
- Topic: Building a DIY amp with NVA amplifier boards
- Replies: 346
- Views: 210900
Re: Building a DIY amp with NVA amplifier boards
No-one is perfect, let alone me. I think of the layouts in a typical amp this way, and let me be clear, i could be wrong. Input. That first transistor is amplifying the difference between it's base and however it's emitter is connected to ground. The input ground should be shielding (or twisted arou...
- Tue Jan 24, 2023 7:08 pm
- Forum: General Audio
- Topic: Schumann Resonance
- Replies: 34
- Views: 9302
Re: Schumann Resonance
Yes, but you can show contrasting quiet/noisy screen captures to the council. They like evidence.
- Tue Jan 24, 2023 2:02 am
- Forum: General Audio
- Topic: Schumann Resonance
- Replies: 34
- Views: 9302
Re: Schumann Resonance
I have an app on my tablet called "Spectroid". No idea if it's available for apple devices. It'll tell you the intensity and frequency of anything you can hear (assuming of course your microphone isn't broken, either by design or happenstance).
- Sun Jan 22, 2023 5:28 am
- Forum: General Audio
- Topic: Schumann Resonance
- Replies: 34
- Views: 9302
Re: Schumann Resonance
reminds me of this story... The mystery magnified for Dr. Gavreau and his team, when they tried to measure the sound intensity and pitch. Failing to register any acoustic readings at all, the team doubted the assessment of the building engineers. Nevertheless, closing the windows blocked the sense ...