Bass preamp: non-inverting an inverting tone stack (opamp) - Page 2 - diyAudio
Go Back   Home > Forums > Live Sound > Instruments and Amps

Instruments and Amps Everything that makes music, Especially including instrument amps.

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 5th January 2013, 11:03 PM   #11
diyAudio Member
 
Join Date: Dec 2012
Location: The Jurassic Coast, England. GB
Send a message via Skype™ to JonSnell Electronic
Hi, if you use an LF353 I don't see a problem. It has a Jug Fet input, so very high impedance, most preamps are 50K and this one is several Meg Ohms.
Take your 10K to ground and 470K from pin 3 to ground and then feed your signal in through a 100n Cap and a 10K resistor in series.
I think you will find that will do more than you hoped for.
Regards.
  Reply With Quote
Old 5th January 2013, 11:20 PM   #12
JMFahey is offline JMFahey  Argentina
diyAudio Member
 
JMFahey's Avatar
 
Join Date: Mar 2009
Location: Buenos Aires - Argentina
Search for a bass pream specific schematic.
The one in the datasheet is fine ... for a Hi Fi preamp, with +/-15V rails, driven from a low impedance, etc.
You need high input impedance to properly load your pickups (the 470K suggested above instead of 10 K is fine) and running out of a 9V battery is more practical in that situation.
  Reply With Quote
Old 9th January 2013, 04:09 PM   #13
diyAudio Member
 
Loudthud's Avatar
 
Join Date: Nov 2007
Location: Near Dallas Texas USA
Here is a link to a nice bass preamp built around the 3 band Baxandall EQ. It uses JFETs but it will get you started. Link: http://www.albertkreuzer.com/pics/el...eamp_sch21.gif
  Reply With Quote
Old 9th January 2013, 07:03 PM   #14
diyAudio Member
 
Join Date: Oct 2010
Thanks guys! Everything works as it should now!
  Reply With Quote

Reply


Hide 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
sonic differences between inverting/non-inverting LM4780 VS both non-inverting LM4780 jarthel Chip Amps 5 19th July 2007 12:37 PM
whats the difference between inverting and no inverting mikee55 Parts 1 7th January 2007 10:36 PM
inverting / non-inverting op-amp circuits Learnincurve Solid State 11 21st January 2005 05:40 PM
Bridged/Stereo, w or w/o servo, inverting 3886, inverting buffer PCB Alexander Rice Chip Amps 9 27th March 2004 06:53 PM
Inverting/non-inverting Op-amp Inputs !!!help!!! IIR Solid State 17 11th May 2002 02:02 AM


New To Site? Need Help?

All times are GMT. The time now is 02:15 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2