seperate power supply? - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

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

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 12th September 2006, 04:06 PM   #1
diyAudio Member
 
Join Date: Aug 2004
Location: SW - UK
Default seperate power supply?

Is it ok to have the power supply in a seperate enclosure to the main power amp?

If so can anybody answer the following please

1. What do you do about grounding? seperate single point chassis ground in each connected together?

2. What connectors work well for both the B+ and heater supplies?




Thanks
  Reply With Quote
Old 12th September 2006, 04:14 PM   #2
diyAudio Member
 
FastEddy's Avatar
 
Join Date: Jun 2006
Location: North Californie
Default no problem-o

... yes, power supplies in seperate enclosures is possible, but not necessarily easy.

Advantages: with seperate enclosures the supply is "isolated" from the main circuit(s) and the cases can serve to seperate the noisey supply from the action in the main case = better filtering is possible.

Disadvantages: obviously there is a much higher parts count = two cases instead on one plus the interconnection hardware.

1) A single ground connect at the output of the external supply ... a star ground network from that point = a good "loop free" design.

2) Connectors? I prefer Molex type plugs and sockets, but others here will probably suggest alternates ... truth is one, paths are many ...

(There is a lot to be said for using a sperate supply for the pre-amp and associated interfaces ... and having a seperate, external 12 VDC supply (or +/- 12 VDC) with associated battery (as "filter" & storage) can be very useful & very successful at powering several "low level" devices and DACs.)

  Reply With Quote
Old 12th September 2006, 06:14 PM   #3
Sherman is offline Sherman  United States
diyAudio Member
 
Join Date: Feb 2004
Location: Chicago area
I've used Molex connectors successfully but I think the connectors from Neutrik (sp?) are excellent. They have a 'twist-lok' connection that makes positive contact and won't fall out. They also make it virtually impossible to touch the contacts, important with HT.
__________________
--Sherman
  Reply With Quote
Old 12th September 2006, 09:47 PM   #4
diyAudio Member
 
Alain Dupont's Avatar
 
Join Date: Sep 2003
Location: Paris - France
matthew2456,

Take a look at my site under SE 6C33C-B

The PS's for each channel are on a separate chassis...

Work pending!

Using Amphenol connectors military serie... PT 06 Serie: MIL-C-26482
14/12 for 12 contacts 8 #20 and 4 #16 {Digikey}
1000 Volts AC

Each supply has 2 cables and the connections are made only on the amplifier...
Ground is on the Amp chassis only, the PS chassis are grounded to earth.

12.6VDC 3.3A for 6C33C-b
270 VDC B+
420 DC Volts driver
200V DC Preamp
12.6V DC Heaters 6SN7's in serie
5V DC LCD

That's 12 wires serie 300 or 600Volts

Alain.
  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
Seperate/Dedicate 12V Power Supply for TT's Motor mike_junior Power Supplies 0 26th January 2009 02:31 PM
Seperate power supply for pre-amp section in integrated amp? KevinLee Solid State 8 2nd February 2008 10:20 PM
seperate power supply reddish75 Solid State 2 22nd November 2007 10:08 AM
seperate chassis for power supply happyben3 Solid State 16 5th August 2002 06:20 PM


New To Site? Need Help?

All times are GMT. The time now is 07:38 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