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

Solid State Talk all about solid state amplification.

NAP-140 Clone Amp Kit on Ebay
NAP-140 Clone Amp Kit on Ebay
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 Today, 03:59 AM   #3501
Ruwe is offline Ruwe  Europe
diyAudio Member
 
Join Date: Aug 2008
Location: Vancouver, Canada
Quote:
Originally Posted by Azatto28 View Post
Second question about bias. I put a 2k2 trim pot instead 1kohm that was in this kit and now I can't set the bias more than 8mA. So maybe I should put 1kohm back?
I would look first in the Vbe multiplier transistor, because the bias is definitely not working. Usually, people follow the layout and install the transistor the wrong way. Follow the schematics and the transistor pinout instead.
When you fix that you may find that the other problem is also gone.

Last edited by Ruwe; Today at 04:02 AM.
  Reply With Quote

Reply


NAP-140 Clone Amp Kit on EbayHide 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
GB - F5 Clone suds Group Buys 3 23rd August 2010 02:03 PM
Tube Preamp 'Clone' PCB copys on ebay (Marantz, McIntosh, etc) powertriode Tubes / Valves 57 11th August 2007 08:59 PM
Question regarding ProAc 2.5 Clone and Tempo 2 Clone zoooh Multi-Way 5 11th March 2003 09:19 PM


New To Site? Need Help?

All times are GMT. The time now is 08:25 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
Wiki