help with peizo preamp for accoustic - 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 29th March 2005, 07:32 AM   #1
diyAudio Member
 
Join Date: Mar 2005
Location: Melbourne pride!
Default help with peizo preamp for accoustic

i am trying to build a pre amp using a National LF442CN. I have got a it working and with pleanty of volume but has an annoying hum. But only in a few amps!!!! When i touch the jack casing it ceases and works great. As far as i can tell i have earthed it all well. Any help would be greatly appreciated.
cheers
billie
Attached Images
File Type: jpg peizo acc pre amp.jpg (90.8 KB, 66 views)
  Reply With Quote
Old 30th March 2005, 11:06 PM   #2
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Chatham, England
Have you tried using a DI box with earth lift?
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  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
Tube Preamp Popping on Source Input Change (?) / 6DJ8 Preamp On Chip Amps MartyM Tubes / Valves 3 16th October 2008 04:52 AM
twisted pear Preamp/other suggestions for Preamp kit LukeDuke Chip Amps 1 1st February 2008 09:57 PM
The sound of accoustic feedback 405man Everything Else 10 7th September 2005 02:52 AM
Wavelength & accoustic "short circuit"? Jennice Multi-Way 3 25th May 2005 10:09 AM
Is Peizo destroyable? Nappylady Multi-Way 14 21st March 2003 06:13 AM


New To Site? Need Help?

All times are GMT. The time now is 08:11 PM.


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