In your second try using the NLC you mention a 10K resistor. Where was that in the circuit?
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- Mon Nov 22, 2010 12:20 pm
- Forum: Pro Audio Design
- Topic: automatic timing in compressor confusion
- Replies: 8
- Views: 17111
- 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: 129418
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: 129418
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: 18873
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: 129418
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: 18873
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...
- Wed Nov 03, 2010 3:26 pm
- Forum: Pro Audio Design
- Topic: VCA Compressor Gain Reduction Limit
- Replies: 26
- Views: 52708
- Tue Oct 26, 2010 9:05 pm
- Forum: The Peabody Lounge
- Topic: is it just me
- Replies: 8
- Views: 16850
Re: is it just me
PS: Don't forget to vote early and often in mid term election coming up. Well, I guess the year going fast was a good thing. :D Still, I'll miss summer. From August to September I got two houses exteriors painted and only lost maybe three days to rain. I suppose by mid November I'll have to give up...
- Tue Oct 26, 2010 2:54 pm
- Forum: The Peabody Lounge
- Topic: is it just me
- Replies: 8
- Views: 16850
Re: is it just me
Wasn't it the UV reacting with CFCs that was going to end life as we know it? :D With UV declining does this mean we can start using real Freon cleaners again? "They [the solar cycles] are contributing nothing to long-term global warming," she said, "and it has no bearing on what we u...