VCAs. With a NVM DPOT on Ec.
Holy shit.
Search found 5471 matches
- Sun Nov 28, 2010 5:15 pm
- Forum: Pro Audio Design
- Topic: DPOTs for audio control
- Replies: 16
- Views: 25812
- Sun Nov 28, 2010 1:37 pm
- Forum: The Peabody Lounge
- Topic: Not quite a Grammy, but I'll take it!
- Replies: 3
- Views: 7446
Re: Not quite a Grammy, but I'll take it!
Good work Doug. WIll I be hearing the on "Undercurrents?"
- Sun Nov 28, 2010 1:28 pm
- Forum: Pro Audio Design
- Topic: DPOTs for audio control
- Replies: 16
- Views: 25812
Re: DPOTs for audio control
Thanks for posting this John. I know that in your application that the ADI LOGDACs might be too expensive. They also zip but IIRC are monotonic in their gain steps. Have you ever tried them and is ADI still in production of these? I remember them being used in the Studer 820 and MCI/Sony APR-24.
- Mon Nov 22, 2010 12:20 pm
- Forum: Pro Audio Design
- Topic: automatic timing in compressor confusion
- Replies: 8
- Views: 17140
Re: automatic timing in compressor confusion
In your second try using the NLC you mention a 10K resistor. Where was that in the circuit?
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- Wed Nov 17, 2010 9:39 am
- Forum: Document
- Topic: Op amps: to dual or not to dual? (Part 1 of 2)
- Replies: 3
- Views: 8103
- Sun Nov 14, 2010 1:10 pm
- Forum: Pro Audio Design
- Topic: THAT1646 Current Booster and Transformer Driver
- Replies: 45
- Views: 129545
Re: THAT1646 Current Booster and Transformer Driver
I think it fits here fine. One is for phones, one for transformers. Need to start one for driving cable.Oops, wrong thread!
It's very adaptable circuit...
- Sun Nov 14, 2010 11:09 am
- Forum: Pro Audio Design
- Topic: THAT1646 Current Booster and Transformer Driver
- Replies: 45
- Views: 129545
Re: THAT1646 Current Booster and Transformer Driver
Roger - Thanks. I may need to clarify something for our readers. The circuit Roger is refering to is not actually posted in this thread but is the headphone amplifier with external driver transistors. For the sake of clarity it is here: https://www.ka-electronics.com/Headphone_Amp/Headphone_Amp_1646...
- Sat Nov 13, 2010 5:13 pm
- Forum: Document
- Topic: dBx 3BX Three Band Dynamic Range Expander
- Replies: 8
- Views: 18881
Re: dBx 3BX Three Band Dynamic Range Expander
That's the one I remember. Very clever.
- Sat Nov 13, 2010 5:12 pm
- Forum: Pro Audio Design
- Topic: THAT1646 Current Booster and Transformer Driver
- Replies: 45
- Views: 129545
Re: THAT1646 Current Booster and Transformer Driver
Roger - You can indeed drop the 33R build-out to drive a transformer. It's there only for driving phones and hearing protection. Some phones in fact may sound better without it. As a direct-coupled line driver using no transformer, the circuit is capacitive load stable as well without the 33R. The o...
- Sat Nov 13, 2010 10:13 am
- Forum: Document
- Topic: dBx 3BX Three Band Dynamic Range Expander
- Replies: 8
- Views: 18881
Re: dBx 3BX Three Band Dynamic Range Expander
Those active cap multipliers with diode clamps to make it fast for large changes and slow for small changes is very similar to a circuit I did in the '80s for a NR... While I added a few other tricks too, it was the same general concept. Still found as the NLC in the Pico and THAT DN-114: http://ww...