807 regulated supply - diyAudio
Go Back   Home > Forums > Amplifiers > Power Supplies

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 1st November 2012, 11:52 PM   #1
TV7 is offline TV7  Australia
diyAudio Member
 
TV7's Avatar
 
Join Date: Aug 2011
Location: Fraser Coast
Default 807 regulated supply

Can any of you gurus recommend a regulated supply using an 807 or other suitable pentode coming off a 5Y3?

I need 270V regulated at a modest 10mA for a preamp, and was thinking of using glow lamp (neons) for the screen tap for simplicity...

Many might say why a 807? well cheap and I know they will never burn out at 10mA...

Having looked all through the forums I cannot find a suitably simple yet effective design, I would appreciate any help as I have never built a regulated tube supply before.

__________________
It's all part of a commie plot to sap and impurify our bodily fluids.
  Reply With Quote
Old 2nd November 2012, 12:03 AM   #2
TV7 is offline TV7  Australia
diyAudio Member
 
TV7's Avatar
 
Join Date: Aug 2011
Location: Fraser Coast
Woops I keep thinking the 807 is a pentode for some reason...... try 837 instead.

Got my pentodes mixed up with my heptodes, triodes, hexodes and bi-diodes (tetrodes)

thanks
__________________
It's all part of a commie plot to sap and impurify our bodily fluids.
  Reply With Quote
Old 4th November 2012, 11:07 AM   #3
diyAudio Member
 
Join Date: Apr 2010
Pentode / Beam Tetrode - pretty much the same thing for all practical purposes.
  Reply With Quote
Old 6th November 2012, 05:26 AM   #4
TV7 is offline TV7  Australia
diyAudio Member
 
TV7's Avatar
 
Join Date: Aug 2011
Location: Fraser Coast
Wow the responses have been overwhelming thanks to the many many friendly helpful replies here at DIY audio.........
__________________
It's all part of a commie plot to sap and impurify our bodily fluids.
  Reply With Quote
Old 6th November 2012, 08:51 AM   #5
diyAudio Member
 
Join Date: Apr 2010
Quote:
Originally Posted by TV7 View Post
Wow the responses have been overwhelming thanks to the many many friendly helpful replies here at DIY audio.........
Glad to have been of help....
Although this is the PSU forum you may get a better response from the valve (tube) forum.
An 807 sounds like a massive overkill for 10mA, an EL86 would be more than big enough. All the designs for valve regulated supplies I can think of are buried in test equipment such as old Tektronix scopes.
  Reply With Quote
Old 6th November 2012, 10:41 AM   #6
TV7 is offline TV7  Australia
diyAudio Member
 
TV7's Avatar
 
Join Date: Aug 2011
Location: Fraser Coast
Thanks Barry, I'll dig up some schematics.
__________________
It's all part of a commie plot to sap and impurify our bodily fluids.
  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
The Well Regulated Power Supply andrea_mori Power Supplies 134 23rd July 2014 04:57 PM
0.83V regulated supply kp93300 Power Supplies 17 11th May 2011 09:10 AM
G-807=807 SE or PP? gabrielbecheanu Tubes / Valves 8 18th July 2010 11:57 PM
3 Pin regulated supply VS zener based supply KevinLee Solid State 3 15th September 2008 02:40 PM
Regulated power supply crissty Chip Amps 23 2nd September 2005 04:18 AM


New To Site? Need Help?

All times are GMT. The time now is 02:31 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