Hi,
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,
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,
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
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
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 .
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 .
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 !!
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