Schematic for Siemens F2a tube amp - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

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
Reply
 
Thread Tools Search this Thread
Old 25th November 2004, 11:47 AM   #1
MarW is offline MarW  Germany
diyAudio Member
 
Join Date: Nov 2004
Location: ...
Default Schematic for Siemens F2a tube amp

Dear all,

I am searching for a schematic of a tube amp using the Siemens F2a tube in push-pull.

Can anybody help?

Many thanks in advance.


Best regards,
Markus
  Reply With Quote
Old 26th November 2004, 12:19 AM   #2
diyAudio Senior Member
 
fdegrove's Avatar
 
Join Date: Aug 2002
Location: Belgium
Hi,

Quote:
I am searching for a schematic of a tube amp using the Siemens F2a tube in push-pull.
If I'm not mistaken the F2A was developed and made by Telefunken.
One of AEG-TFK own amps used this type of tube in a P-P configuration. It was called the V69 (a, b).

Here's some info that may be of interest to you:

SHINROCK TREASURY TROVE....

Cheers,
__________________
Frank
  Reply With Quote
Old 26th November 2004, 02:06 AM   #3
diyAudio Member
 
Join Date: Oct 2004
Location: Adelaide South Oz
Have a look at this one.

http://www.ndh.net/home/kboehm/AMP-f2a.htm

Top triode in the driver acts as cathode follower for low inpedance grid drive of the output tubes. Transformer phase splitter.

Cheers,
Ian
  Reply With Quote
Old 26th November 2004, 02:11 AM   #4
garbage is offline garbage  Singapore
diyAudio Member
 
garbage's Avatar
 
Join Date: Apr 2004
Location: Singapore
Default Re: Schematic for Siemens F2a tube amp

Quote:
Originally posted by MarW

I am searching for a schematic of a tube amp using the Siemens F2a tube in push-pull.
try this

cheers
garbage
  Reply With Quote
Old 26th November 2004, 06:26 AM   #5
RE 604 is offline RE 604  Germany
diyAudio Member
 
RE 604's Avatar
 
Join Date: Oct 2003
Location: Germany
Hello Frank ,
the idea and concept of the V 69 came from engineers and technicians from the "Abteilung Zentraltechnik" des NWDR ( Nord Westdeutscher Rundfunk ) and Telefunken only build this amp with F2a11 ( same as F2a , other socket ) and this tubes were only build bei Siemens . TFK had their EL 156 at this times ( which only came from TFK , no other manufacturers ) , their was no need for a further power tube . You can buy EL 156 with a Siemens logo , but they are TFK . I have never seen a F2a(11) with an other logo than Siemens ( and I have many of this tubes and also V 69 amps from TFK in their O 85 studio monitor ) .
Regards , AlexK .
__________________
No reason to get excited : Jimi Hendrix .
  Reply With Quote
Old 17th March 2005, 08:10 AM   #6
ks-JPN is offline ks-JPN  Japan
diyAudio Member
 
Join Date: Mar 2005
Location: Japan
Schematic for F2a is here.

http://www2u.biglobe.ne.jp/~tossie/F2aPP_sch-1.gif;)
  Reply With Quote
Old 12th August 2011, 07:19 AM   #7
radio is offline radio  Macedonia
Banned
 
Join Date: Oct 2009
Location: Bitola MACEDONIA
Quote:
Originally Posted by ks-JPN View Post
Hi all!
Do not open this Web page. Give your all to pray in pdf or jpg?!
To see the pattern? And let it be English language !!
Thanks and cheers !!

Last edited by radio; 12th August 2011 at 07:35 AM.
  Reply With Quote
Old 12th August 2011, 07:33 AM   #8
diyAudio Member
 
Join Date: Sep 2009
The correct link...
http://www2u.biglobe.ne.jp/~tossie/F2aPP_sch-1.gif
  Reply With Quote

Reply


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
Siemens RA400 CD Player - Schematic Wanted poynton Digital Source 3 13th June 2009 03:15 AM
Tube Pin Schematic Question David E H Tubes / Valves 20 7th May 2009 06:44 AM
need tube schematic xazopartalos Tubes / Valves 3 21st October 2007 09:21 AM
Need info about rare Siemens Cf "post tube" reaction Tubes / Valves 3 28th October 2004 02:37 PM
Schematic for Siemens "Table" Amplifier Valverine Tubes / Valves 0 29th June 2004 11:51 PM


New To Site? Need Help?

All times are GMT. The time now is 02:59 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2