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

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Question on Input Connections
Question on Input Connections
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 22nd September 2007, 08:08 PM   #1
dsavitsk is offline dsavitsk  United States
diyAudio Member
 
dsavitsk's Avatar
 
Join Date: Jan 2005
Location: Hartford
Default Question on Input Connections

I am finishing up a balanced preamp that uses a 1:1 input transformer. For inputs, I have some RCAs and an XLRs, and 4P3T switch.

The question is on the grounds of the RCAs. Should the grounds be switched like the negative pole of the XLR and kept separate, or should they all be connected together and connected (with the negative side of the transformer) to chassis ground, or some other variation? Suggestions?
  Reply With Quote
Old 22nd September 2007, 08:30 PM   #2
Jan Dupont is offline Jan Dupont  Denmark
diyAudio Member
 
Jan Dupont's Avatar
 
Join Date: Apr 2003
Location: Copenhagen, Denmark
Send a message via MSN to Jan Dupont
Normally on Single Ended Inputs (like RCA) the Ground is connected to Ground on the unit. The "hot" pin (signal pin) goes to the positive input of the unit. The negative input is connected to Ground.
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Spare time company (just for fun): www.dupont-audio.com
  Reply With Quote
Old 22nd September 2007, 09:17 PM   #3
KaDe is offline KaDe  Germany
diyAudio Member
 
KaDe's Avatar
 
Join Date: May 2007
unless there is a balanced source you want to connect one side of the primary goes to ground, so with RCAs
Attached Images
File Type: gif raven-markii-preamp-lundahl.gif (56.0 KB, 81 views)
  Reply With Quote

Reply


Question on Input ConnectionsHide 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
internal speaker connections - newbie question speakerbug Parts 6 29th February 2008 04:12 PM
Question on Alpine MRP-M450 speaker connections Flyin11 Car Audio 3 8th November 2007 02:25 AM
Question re: LM3886 Snubber pin connections salesmonster Chip Amps 6 31st August 2007 08:15 AM
Ground shield connections question rtarbell Solid State 4 3rd September 2006 10:12 AM


New To Site? Need Help?

All times are GMT. The time now is 12:21 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