Pro Audio Design Forum

Here's LED version that use a lot in the 90's.
https://worldradiohistory.com/Archive-E ... 990-12.pdf

Looks like the LM3914N-1 has reached it's end of life as well.
The PLCC20 version is more expensive

Thanx JohnP
Will try them in a prototype and make some listenings tests before I use them in production.

Does anyone around here have experience of Polyphenylene Sulphide Film Capacitor (SMD) in EQ filters?

Sallen-Key filter calculator.
http://sim.okawa-denshi.jp/en/OPseikiHikeisan.htm

Still have the light bulb test circuit on my bench that was descibed in the CS800 manual. Think I put it together back in 1978.

Isn't all info you need here? http://www.thatcorp.com/datashts/dn127.pdf

Zener voltage is 2.7v
The detector is a part of this compressors character so I think I will stay as close as possible.
The original designs combines the compressor and limiter CV's with parallelled transistors.
Thanx for the suggestions!

Looks to be half wave, will soon know as I will build a prototype this week.

It will be a dual detector solution as I forgot about the problem when something is present in both channels but out of phase.