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 21st September 2006, 02:38 PM   #11
diyAudio Member
 
Tom Bavis's Avatar
 
Join Date: Jun 2002
Location: Macedon NY
a 4.7 uF cap is small amd may have a high ESR, causing heating. A larger cap won't have that problem, but may increase peak current too much for 5Y3. If you remove the cap, you'll have to decrease the value of the first resistor to keep the same voltage (should be at least 2W, since it now has to carry ripple current...). The RCRC filter that's left SHOULD have have enough ripple attenuation...
  Reply With Quote
Old 21st September 2006, 05:33 PM   #12
diyAudio Moderator
 
JojoD818's Avatar
 
Join Date: Mar 2003
Location: searching...
exactly what I did. the frist R was reduced from a value of 1.8K to 470R to maintain 320V at the junction of the tube and first resistor.
  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
kenwood excelon amp over heats to 203F mattsoft Car Audio 4 21st September 2005 12:54 PM
External screen heats up tranformer rapidly Bas Horneman Parts 7 13th July 2005 08:06 PM


New To Site? Need Help?

All times are GMT. The time now is 08:23 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