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

Power supply help
Power supply help
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 7th July 2003, 12:26 AM   #1
Burnedfingers is offline Burnedfingers  United States
diyAudio Member
 
Join Date: Nov 2002
Default Power supply help

Can anyone tell me what I will end up with voltage wise if I use a 300-0-300 100MA transformer, a 6X4 rectifier, 20H choke, 50mfd cap, 20H choke, and a 50mfd cap?

Thanks in advance

Joe
  Reply With Quote
Old 7th July 2003, 12:32 AM   #2
Bandersnatch is offline Bandersnatch  United States
diyAudio Member
 
Join Date: Jul 2003
Location: Ann Arbor, MI
Hey-Hey!!!,
With no load yo will still get root2 times the unloaded RMS ac voltage. I suggest a run through the Duncanamps PSUDII, power suply design software for a good answer.

Choke input will start you with .9x rms value. the DCR fo the choke will drop this further, and so wil the 6X5. This assumes the load draws more that critical current through the choke.
regards,
Douglas
__________________
the Tnuctipun will return
  Reply With Quote
Old 7th July 2003, 12:44 AM   #3
Burnedfingers is offline Burnedfingers  United States
diyAudio Member
 
Join Date: Nov 2002
Will I end up with about 230V B+ ?
  Reply With Quote
Old 7th July 2003, 01:29 AM   #4
Colt45 is offline Colt45  Serbia
diyAudio Member
 
Join Date: Feb 2002
Location: Canada
Send a message via ICQ to Colt45
depends on the DCR of the L's, and the load..
  Reply With Quote
Old 7th July 2003, 02:49 AM   #5
Burnedfingers is offline Burnedfingers  United States
diyAudio Member
 
Join Date: Nov 2002
The chokes are 595 ohms each. The load will be a 5687 tube.
  Reply With Quote
Old 7th July 2003, 02:35 PM   #6
Bas Horneman is offline Bas Horneman  Netherlands
diyAudio Moderator Emeritus
 
Bas Horneman's Avatar
 
Join Date: Apr 2002
Location: The Netherlands
Assuming a 14mA load you will get 242,6 volts dc as calculated with PSU2 designer.
  Reply With Quote

Reply


Power supply helpHide 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
Split Voltage Switching Power Supply for Power Amp vectorplane Swap Meet 2 23rd April 2011 11:48 PM
LTspice tool for power amp power supply component evaluation andy_c Software Tools 2 23rd August 2009 05:10 PM
Can i use a computer power supply to power audio amplifiers? destroyer X Solid State 91 25th September 2006 04:36 AM
selling high current power supply for power amps. ericpeters Swap Meet 0 14th January 2005 02:21 PM
heater supply (xformer specs are 6.3V 2.5A) as supply for a power LED? jarthel Tubes / Valves 10 21st July 2003 01:30 PM


New To Site? Need Help?

All times are GMT. The time now is 05:43 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki