Search found 4 matches
- Sun Dec 06, 2020 11:43 pm
- Forum: Pro Audio Design
- Topic: variable gain amplifier using analog optoisolators
- Replies: 6
- Views: 24415
Re: variable gain amplifier using analog optoisolators
The Tesla "Vactrols" are very interesting. I hope they come out with a VTL 5C3 replacement. I would keep going with your project though I'm not sure you'll find an CdS-based photocell to be fast enough for peak limiting. You might want to consider a hybrid approach using both an Opto and ...
- Thu Nov 26, 2020 3:51 pm
- Forum: Pro Audio Design
- Topic: variable gain amplifier using analog optoisolators
- Replies: 6
- Views: 24415
Re: variable gain amplifier using analog optoisolators
some progress: as already mentioned, I need both fast and slow response, so I decided to split the control voltage and feed those into different RCs which are then buffered and finally summed at the LED driver. Atm there are nine timeconstants and a DC bias which makes sure the LEDs are always on. T...
- Wed Nov 25, 2020 8:06 pm
- Forum: Pro Audio Design
- Topic: variable gain amplifier using analog optoisolators
- Replies: 6
- Views: 24415
Re: variable gain amplifier using analog optoisolators
http://www.tesla-blatna.cz/en/products- ... rezistoremmediatechnology wrote: ↑Wed Nov 25, 2020 7:19 amHi, thanks for your post.I purchased the fastest optos available, the Tesla 3WK160
Do you have a data sheet link for the opto?
- Mon Nov 23, 2020 11:30 am
- Forum: Pro Audio Design
- Topic: variable gain amplifier using analog optoisolators
- Replies: 6
- Views: 24415
variable gain amplifier using analog optoisolators
I´m Horst from Bavaria, been lurking for some time. My current project is an optical dynamics processor to manage my audio, the main goal is to prevent the level going higher than 0 dBu. I purchased the fastest optos available, the Tesla 3WK160 which has an almost zero attack and release. By biasing...