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

Vendor's Bazaar Commercial Vendors large & small hawking their wares

Op Amp Class A adaptor with bypassing
Op Amp Class A adaptor with bypassing
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
Thread Tools Search this Thread
Old 11th November 2007, 06:29 PM   #1
spare_parts is offline spare_parts  United States
diyAudio Member
Join Date: Oct 2006
Lightbulb Op Amp Class A adaptor with bypassing

Here is a fast and effective way to try Class A biasing on any existing circuit without making any modifications to the equipment. It also provides proper power supply bypassing so your opamps will be operating at full potential. High quality NPO/COG bypass caps are surface mounted very close to the supply pins for best RF rejection. This will allow a more open sound, as the Op Amp is no longer trying to work on signals other than your audio (like the noises injected from a poorly bypassed power supply). Also employs special ultra- low ESR solid SMD ripple filter caps that do not wear out like electrolytics! If your existing equipment should posess superior bypassing, omit any components you see fit and just use the Class A current sources.

One may select bias resistors to suit design goals. The suggested resistor for audio applications at standard +/-15V supplies is 4.7k.
I will have PCB's available to sell.
Attached Images
File Type: jpg dip.jpg (12.2 KB, 347 views)
  Reply With Quote


Op Amp Class A adaptor with bypassingHide 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
Where can I get a mini din to rca adaptor? yellow95 Solid State 2 21st November 2006 12:02 AM
Using 8.4V AC adaptor instead of 7.4V HouseMachine Parts 5 8th June 2006 01:44 PM
Opamp adaptor Sunsun22 Solid State 2 16th July 2004 04:59 PM
Using a Nintendo adaptor ChesterFuzzin' Multi-Way 13 24th March 2004 09:07 PM
mini din to rca adaptor yellow95 Multi-Way 0 27th December 2001 04:06 PM

New To Site? Need Help?

All times are GMT. The time now is 01:49 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio