anyone familiar with the 211/vt4c circuit from Fi Primer? - 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 29th May 2007, 12:30 AM   #1
jarthel is offline jarthel  Australia
diyAudio Member
Join Date: Jan 2002
Location: somewhere in Australia
Default anyone familiar with the 211/vt4c circuit from Fi Primer?

Here's the schematic:


since the image isn't the best quality, can someone confirm somethings for me.

1. on the top-left 6sn7, there is a 55V label. is the 2 wires that is intersecting connected together? so the grid is connected to the cathode?

2. how about the intersecting wires at the input? are they connected together?

3. same question as above but for the intersecting wires to the left of the 211. the intersecting wires close to the -47V label.

I think that's about it. I also about the "dots" on some of the intersection. BUT as I said, the image isn't good quality so I think it's best to clarify.

Thank you.
  Reply With Quote
Old 29th May 2007, 01:01 AM   #2
diyAudio Member
astouffer's Avatar
Join Date: Jun 2004
Location: Pittsburgh, crumbling wasteland
1. No they are not connected.

2. Nope not connected either.

3. See above

Google for "srpp" to get a better idea of how the input stage works.
  Reply With Quote
Old 29th May 2007, 03:52 PM   #3
kevinkr is offline kevinkr  United States
diyAudio Moderator
kevinkr's Avatar
Join Date: Sep 2004
Location: Boston, Massachusetts
Blog Entries: 6
Here's a link that actually works:

Otherwise I agree with astouffer
"To argue with a person who has renounced the use of reason is like administering medicine to the dead." - Thomas Paine
  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
Does this FET buffer circuit look familiar? homemade Solid State 15 24th October 2012 11:26 AM
VT4C output transformer drobert Tubes / Valves 6 23rd November 2008 07:09 PM
Does this FET buffer circuit look familiar? homemade Parts 1 9th January 2008 11:19 PM
psud2 question and Fi Primer's 211 circuit jarthel Tubes / Valves 3 12th June 2007 07:33 AM
Linn LK-2(60) One Channel has Failed. Anyone familiar with this circuit design? dtm1962 Solid State 0 11th April 2004 12:41 AM

New To Site? Need Help?

All times are GMT. The time now is 06:56 PM.

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