Search found 18 matches

by vintagedesign
Tue Jan 23, 2018 10:12 am
Forum: Document
Topic: TI Parts Going End of Life
Replies: 20
Views: 28316

Re: TI Parts Going End of Life

Looks like the LM3914N-1 has reached it's end of life as well.
The PLCC20 version is more expensive :(
by vintagedesign
Mon Jun 27, 2016 8:45 am
Forum: Pro Audio Design
Topic: Polyphenylene Sulphide Film Capacitor (SMD) in EQ filters
Replies: 4
Views: 9613

Re: Polyphenylene Sulphide Film Capacitor (SMD) in EQ filter

Thanx JohnP
Will try them in a prototype and make some listenings tests before I use them in production.
by vintagedesign
Mon May 02, 2016 9:13 am
Forum: Pro Audio Design
Topic: Polyphenylene Sulphide Film Capacitor (SMD) in EQ filters
Replies: 4
Views: 9613

Polyphenylene Sulphide Film Capacitor (SMD) in EQ filters

Does anyone around here have experience of Polyphenylene Sulphide Film Capacitor (SMD) in EQ filters?
by vintagedesign
Mon Jan 26, 2015 7:11 am
Forum: Document
Topic: early solid state amp design
Replies: 6
Views: 7244

Re: early solid state amp design

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.
by vintagedesign
Tue Apr 01, 2014 1:57 am
Forum: Pro Audio Design
Topic: Sphere Console VCA upgrade
Replies: 10
Views: 15583

Re: Sphere Console VCA upgrade

Isn't all info you need here? http://www.thatcorp.com/datashts/dn127.pdf
by vintagedesign
Thu Feb 06, 2014 2:42 am
Forum: Pro Audio Design
Topic: Summing Left & Right but lowering Center information
Replies: 21
Views: 27971

Re: Summing Left & Right but lowering Center information

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!
by vintagedesign
Wed Feb 05, 2014 7:16 am
Forum: Pro Audio Design
Topic: Summing Left & Right but lowering Center information
Replies: 21
Views: 27971

Re: Summing Left & Right but lowering Center information

Looks to be half wave, will soon know as I will build a prototype this week.
by vintagedesign
Fri Jan 17, 2014 3:17 am
Forum: Pro Audio Design
Topic: Summing Left & Right but lowering Center information
Replies: 21
Views: 27971

Re: Summing Left & Right but lowering Center information

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