El34 SE pentode - 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
Thread Tools Search this Thread
Old 18th July 2006, 06:47 PM   #1
diyAudio Member
Join Date: Mar 2006
Location: Michigan
Default El34 SE pentode

hi, I have constructed an EL34 SET amp, and I want to run in it in pentode mode, however I have a B+ of close to 430v, which is right around the voltage limit for G2, will it be safe to apply 430v across the G2 on an El34? or will the tube arc and fry?

  Reply With Quote
Old 18th July 2006, 07:26 PM   #2
diyAudio Member
tubelab.com's Avatar
Join Date: Jul 2005
Location: West Virginia panhandle
I have been running 430 volts with no problems using JJ or Shuguang (Valve Art) tubes.

I had a Svetlana exhibit a bad blue glow and excessive current though. I believe that these tubes (2 out of 4) were bad from day one!
Too much power is almost enough! Turn it up till it explodes - then back up just a little.
  Reply With Quote


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
how to connect an EL34 pentode into a triode and 100ohm resistor between plate and g2 jarthel Tubes / Valves 15 26th October 2013 02:44 PM
EL34 Pentode in Push-Pull! Guijs Tubes / Valves 68 13th February 2013 08:08 PM
All pentode PP amp? ray_moth Tubes / Valves 7 31st January 2007 12:52 AM
A small no-fuss pentode/pentode SE amp Tubes4e4 Tubes / Valves 13 1st January 2006 05:16 AM
EL34 in Pentode Class A? ray_moth Tubes / Valves 7 24th March 2004 05:31 AM

New To Site? Need Help?

All times are GMT. The time now is 11:16 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.
Copyright 1999-2015 diyAudio

Content Relevant URLs by vBSEO 3.3.2