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

Help about tube
Help about tube
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 April 2017, 08:14 PM   #1
brankko is offline brankko  Serbia
diyAudio Member
 
Join Date: May 2008
Default Help about tube

Dear friends I have three VT4B Westinghouse tubes but two of those have yellow spot (something like paint) on top.Please tell me if you know what this mean and his value.Thank you and best regards
Attached Images
File Type: jpg 20170420_234908.jpg (175.1 KB, 39 views)
File Type: jpg 20170420_234937.jpg (188.1 KB, 40 views)
File Type: jpg 20170420_235120.jpg (164.5 KB, 39 views)
  Reply With Quote

Reply


Help about tubeHide 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
Tube vs. Jfet Preamp for Dynaco ST-35 tube power amp rcollege Tubes / Valves 16 25th November 2013 11:56 PM
FS: Yaqin CD-1 Tube Buffer w/Mullard 6DJ8 Tube. Adds tube warmth to any system. matevana Swap Meet 2 15th June 2013 01:35 PM
need diy tube preamp (line-stage) recommendation and general tube advice Musiclover4 Tubes / Valves 16 18th May 2013 04:19 PM
Telefunken Tube Receiver, Magnetophon 97 (Tube R2R) and Record Player Dredfred Swap Meet 1 3rd April 2011 02:12 AM
FS tube tuner, Active filter kit, tube amp, amp3 Josephjcole Swap Meet 9 20th July 2007 05:05 PM


New To Site? Need Help?

All times are GMT. The time now is 05:09 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki