Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

Reed Switch Audio Attenuator
Reed Switch Audio Attenuator
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 11th December 2013, 05:30 AM   #41
Monte McGuire is offline Monte McGuire
diyAudio Member
 
Join Date: Jul 2013
Reed Switch Audio Attenuator
My point was that they are not able to reliably close or open on a zero crossing of a waveform, so that the switch produces fewer or smaller clicks. This is sometimes done with CMOS switches.

What's even better to do with a CMOS switch is to do a soft switch, essentially ramping the switch open or closed, which can be done regardless of a zero crossing, and is far more effective at preventing clicks. It's like a crossfade edit rather than a straight cut.
  Reply With Quote
Old 11th December 2013, 08:58 AM   #42
Bonsai is offline Bonsai  Europe
Account disabled at member's request
 
Join Date: Jul 2003
Location: Europe
Did some one on the forum not plot distortion of a small signal through a reed relay and find it was higher than would be liked due to the reed sitting inside a strong magnetic field?
  Reply With Quote
Old 11th December 2013, 07:13 PM   #43
Monte McGuire is offline Monte McGuire
diyAudio Member
 
Join Date: Jul 2013
Reed Switch Audio Attenuator
I would nike to see that - I have wondered myself.

If that effect exists, it would not be from the static magnetic field, but by the signal current induced B field that also travels in the magnetically nonlinear reeds. While the reeds are ferromagnetic and signal passes through them, it's not clear that the potential nonlinearities are large enough to matter. Still, at speaker levels, it seems plausible.

Note that some conventional relay designs also pass signals through magnetic materials that compose the armature. It's not required, as it is in a reed relay, but it is possible depending upon the armature design.
  Reply With Quote

Reply


Reed Switch Audio AttenuatorHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rotary switch for attenuator Alex M Parts 3 28th October 2011 10:35 PM
Are Coto 9007 reed relays ok for audio ? 00940 Parts 1 6th November 2008 07:43 AM
please reed if you know about audio kits!! subaru16162 Everything Else 2 7th September 2008 10:13 PM
Switch for stepped attenuator jnb Parts 0 4th October 2007 03:02 PM
Alps switch for stepped attenuator rebojorge Parts 3 12th January 2006 11:58 PM


New To Site? Need Help?

All times are GMT. The time now is 09:36 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki