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

6EJ7's vs. 6JC6A
6EJ7's vs. 6JC6A
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 2nd September 2013, 12:38 PM   #1
rsumperl is offline rsumperl  United States
diyAudio Member
rsumperl's Avatar
Join Date: Oct 2009
Location: Cascade, Idaho
6EJ7's vs. 6JC6A
Default 6EJ7's vs. 6JC6A

Good morning everyone,
Any reason I should not use a 6JC6A in place of a 6EJ7?

Attached Files
File Type: pdf 6EJ7.pdf (87.9 KB, 30 views)
File Type: pdf 6JC6A.pdf (330.2 KB, 28 views)
A great pleasure in life is doing what people say can't be done.
  Reply With Quote
Old 2nd September 2013, 01:28 PM   #2
Osvaldo de Banfield is offline Osvaldo de Banfield  Argentina
diyAudio Member
Osvaldo de Banfield's Avatar
Join Date: Dec 2011
Location: Barrio Garay,Almirante Brown, Buenos Aires, Argentina
They are very similar, but 6jc6 appears to lack the internal shield to pin 6???
Osvaldo F. Zappacosta. Electronic Engineer UTN FRA from 2001.
Argentine Ham Radio LW1DSE since 1987.
  Reply With Quote
Old 2nd September 2013, 02:47 PM   #3
smoking-amp is offline smoking-amp  United States
diyAudio Member
smoking-amp's Avatar
Join Date: Dec 2001
Location: Hickory, NC
6EJ7/EF184 datasheet with plate curves:

Looks like 6JC6 is a bit sharper cutoff toward the knees, and 6EJ7 has 2X the plate resistance.
  Reply With Quote
Old 2nd September 2013, 06:43 PM   #4
wrenchone is offline wrenchone  United States
diyAudio Member
wrenchone's Avatar
Join Date: Feb 2004
Location: Silicon Valley
I used the 6JC6A in one of my early amps, as it was one of the better performers in Pete Millett's pentode shootout. I had no complaints. I don't remember if the 6EJ7 was on his short list as well, but I've gotten a bunch on spec and will end up using them one day. The 6EJ7 is supposed to make a nice triode when strapped for it. The varieties with the mesh shield also look good.
  Reply With Quote


6EJ7's vs. 6JC6AHide 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
6EJ7 phono preamp? fsjonsey Tubes / Valves 3 15th September 2014 12:03 AM
Any designs for 6EJ7 out there? leadbelly Tubes / Valves 8 27th September 2012 06:23 PM
EF184/6EJ7 in Vox AC15 circuit. Who needs EF86? Cassiel Instruments and Amps 22 18th March 2012 07:16 PM
6EJ7 or 6EH7 triode strapped? kegger Tubes / Valves 11 29th November 2006 08:45 AM

New To Site? Need Help?

All times are GMT. The time now is 10:01 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio