Login / Register
 
Tube Based Pye Limiters
New Reply
Subscribe
SIXTWOFOUR
Thread Starter
#1
1st February 2013
Old 1st February 2013
  #1
Lives for gear
 
SIXTWOFOUR's Avatar
 
Joined: Feb 2010
Location: Charlotte, NC
Posts: 658

Thread Starter
SIXTWOFOUR is offline
Tube Based Pye Limiters

I am doing some research. Has anyone ever heard of a Tube Based Pye Limiter? Made by the same company who made the loved solid state units. Any help would be appreciated.
__________________
6/2/4 Productions L.L.C.

www.richarddimmette.com

704-345-5169 (Cell)

704-900-8582 (Studio)
#2
2nd February 2013
Old 2nd February 2013
  #2
Lives for gear
 
Arthurelletson's Avatar
 
Joined: Nov 2010
Location: London
Posts: 542

Arthurelletson is offline
I think the gain reduction would have to be solid state as it is PWM and valves might have difficulties at the frequencies involved.

But I'm sure someone more knowlagable than me will step in
#3
2nd February 2013
Old 2nd February 2013
  #3
Lives for gear
 
Joined: Sep 2004
Location: UK
Posts: 6,409

Matt Syson is offline
Hi
Since valves (depending on design) are happy at microwave frequencies, speed is not a problem.
Valves can happily be used as 'switches' which is what is needed for such a design however the 'need' to do compression in such a manner was probably not necessary at the time.
Pulse width modulated compression has been around a long time but more prevalent in the 'silicon' era. Doing it with a handful of Cmos chips would probably be relatively simple, maybe more simple than the PYE modules.
The main advantage is 'linearity' in that the switches are either on or off but there are 'side effects' such as switching noise that need to be addressed. Thus the 'audible' effect is totally different to other means. It is a matter of exchanging one set of problems for another.
Matt S
__________________
Matt S
www.mseaudio.co.uk
#4
2nd February 2013
Old 2nd February 2013
  #4
Lives for gear
 
emrr's Avatar
 
Joined: Dec 2006
Location: nc
Posts: 1,465

emrr is offline
Yeah, I've seen some here in NC. They are earlier, and a different sort of circuit than the SS. Haven't heard them.
__________________
Best,

Doug Williams
ElectroMagnetic Radiation Recorders
Tape Op issue 73
SIXTWOFOUR
Thread Starter
#5
3rd February 2013
Old 3rd February 2013
  #5
Lives for gear
 
SIXTWOFOUR's Avatar
 
Joined: Feb 2010
Location: Charlotte, NC
Posts: 658

Thread Starter
SIXTWOFOUR is offline
Here is a picture of them.
Attached Thumbnails
Tube Based Pye Limiters-pye1.gif  
#6
3rd February 2013
Old 3rd February 2013
  #6
Lives for gear
 
emrr's Avatar
 
Joined: Dec 2006
Location: nc
Posts: 1,465

emrr is offline
Those are very different form the ones I've seen, may be similar. Can't say.
New Reply Submit Thread to Facebook Facebook  Submit Thread to Twitter Twitter  Submit Thread to LinkedIn LinkedIn  Submit Thread to Google+ Google+ 
 
Thread Tools
Search this Thread
Search this Thread:

Advanced Search
Similar Threads
Thread
Thread Starter / Forum
Replies
Tone Obsessed / So much gear, so little time!
170
rodhmos / So much gear, so little time!
4
siddhu / Music Computers
16

Forum Jump

SEO by vBSEO ©2011, Crawlability, Inc.