Miniature 8pin socket - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs 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

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 28th February 2004, 11:01 PM   #1
diyAudio Member
Join Date: Nov 2003
Location: Ohio
Default Miniature 8pin socket

I have some EF40 tubes I want to use for a project but I can't find any sockets. The tube has 8 pins evenly spaced in a circle the same size as a normal 9 pin tube. Pins are also the same size as a 9 pin. I have done internet searches and nothing clicked. I could hack something up with an old circuit board and some push pins but I would like a socket if I can find one. Any ideas?

  Reply With Quote
Old 29th February 2004, 12:44 AM   #2
RE 604 is offline RE 604  Germany
diyAudio Member
RE 604's Avatar
Join Date: Oct 2003
Location: Germany
Hello Thomas ,
what you need for EF 40 is a Rimlock socket .
Look here :

Regards , Alex .
No reason to get excited : Jimi Hendrix .
  Reply With Quote
Old 29th February 2004, 02:13 AM   #3
diyAudio Senior Member
fdegrove's Avatar
Join Date: Aug 2002
Location: Belgium

Apart from some mild interelectrode capacitance differences due to the different socket layout the EF40 is the father of the EF86.

So if you want to have a look at what can be done with the EF40, any schematic using the EF86, EF806S, EF804, EF804S, E80F and my all time fav the British Z729 should provide plenty of inspiration.
US equivalent of the EF86 is 6267 and 6CF8, I think however that most of these were made in Europe for the US market anyway.

There's another one with variable u but I keep forgetting its name...

  Reply With Quote
Old 29th February 2004, 02:40 AM   #4
diyAudio Member
Join Date: Nov 2003
Location: Ohio
Yes, it is a Rimlock socket. Thanks for the input and the link.

  Reply With Quote
Old 29th February 2004, 03:10 AM   #5
diyAudio Member
Join Date: Nov 2003
Location: Ohio
The German link has some Rimlock sockets but the picture provided shows a rather beat up sample. Does any one know of a US source? Shipping would be easier.

  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
Help! el34 8pin to 7pin conversion kantoking Tubes / Valves 2 10th March 2009 11:27 AM
WANTED TO BUY - LM4562 or LME49720 8Pin DIP arupg Swap Meet 0 9th July 2007 07:57 PM
what's the purpose of pins 3 and 7 in an 8pin VR tube? jarthel Tubes / Valves 7 9th May 2007 01:42 PM
8pin soic labeled 15532, What is it? KevinLee Solid State 1 12th March 2003 07:44 PM
Miniature ESL BennySP Planars & Exotics 9 10th June 2002 06:23 PM

New To Site? Need Help?

All times are GMT. The time now is 07:00 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2