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

Leak tl12+ ECC81
Leak tl12+ ECC81
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 16th November 2013, 10:26 PM   #1
mickg is offline mickg  England
diyAudio Member
Join Date: Mar 2013
Default Leak tl12+ ECC81

I fired up my Leak TL12+'s the other day and I noticed that on one of the amps the ECC81 heater glowed very brightly for a few seconds until it had warmed up. I have not noticed this before and wondered whether it was indicative of impending failure of the valve. The sound quality does not seem to have been affected.
Has anyone experienced this before ?

  Reply With Quote
Old 16th November 2013, 10:34 PM   #2
peterfarrow is offline peterfarrow  United Kingdom
diyAudio Member
Join Date: Nov 2011
Location: Chippenham
Leak tl12+ ECC81
this is fairly normal for Leak amplifiers...
My stereo 20s, TL12+ and stereo60 all did this...
  Reply With Quote
Old 16th November 2013, 10:36 PM   #3
vinylkid58 is offline vinylkid58  Canada
diyAudio Member
vinylkid58's Avatar
Join Date: May 2005
Location: Victoria, B.C.
Heater flash is a well known characteristic of Mullard valves. That's probably all it is.

  Reply With Quote


Leak tl12+ ECC81Hide 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
Leak TL12+ smoothing capacitors. mickg Tubes / Valves 5 3rd June 2013 08:16 PM
speakers for leak tl12+ mickg Tubes / Valves 0 13th March 2013 10:58 PM
leak tl12+ mickg Tubes / Valves 4 7th March 2013 10:48 PM
Leak TL12 + Tannoy 15" jkeny Everything Else 1 4th March 2006 05:08 PM
Leak TL12 replica using 807s? SHiFTY Tubes / Valves 3 19th April 2003 05:55 PM

New To Site? Need Help?

All times are GMT. The time now is 06:07 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio