OTL question

woody · 5th November 2004, 12:39 PM

Would the GS35B be suitable for an otl? This is a hi power
triode and I am having trouble finding the tube data in a form
I understand. In paticular what would it`s output resistance
be used as a cathode follower?

Thanks

Carondimonio · 5th November 2004, 01:42 PM

Hi woody,

I personally do not think this tube is suitable to build an OTL.
For an OTL you usually want high current capabilities and good linearity at relatively low anode voltages, which is not the case for the GS35B. Moreover, this tube is designed as a high power HF triode, requiring forced air cooling. Not really what you want for an audio amplifier...

Cheers,

Bruno

dadoarica1 · 24th September 2008, 05:00 PM

Go with PL-519, especially Made in Germany by SIEMENS, if you can get your hands on NOS stock

Alastair E · 24th September 2008, 08:34 PM

Or he evergreen OTL favorite the 6C33C-B...

But they MUST be burned in WELL before use....

fdegrove · 24th September 2008, 11:46 PM

Hi,

Or use the cheap and cheerful 6AS7G/6080 whcih use regular octal sockets and do not require any topcaps.

Cheers,

5th November 2004, 12:39 PM	#1
woody diyAudio Member Join Date: Jan 2002 Location: Tyrone Ga. U.S.A.	OTL question Would the GS35B be suitable for an otl? This is a hi power triode and I am having trouble finding the tube data in a form I understand. In paticular what would it`s output resistance be used as a cathode follower? Thanks

24th September 2008, 08:34 PM	#4
Alastair E diyAudio Member Join Date: Feb 2004 Location: South Wales	Or he evergreen OTL favorite the 6C33C-B... But they MUST be burned in WELL before use.... __________________ Das Beste Oder Nichts

24th September 2008, 11:46 PM	#5
fdegrove diyAudio Senior Member Join Date: Aug 2002 Location: Belgium	Hi, Or use the cheap and cheerful 6AS7G/6080 whcih use regular octal sockets and do not require any topcaps. Cheers, __________________ Frank

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5th November 2004, 01:42 PM	#2
Carondimonio diyAudio Member Join Date: Jun 2004 Location: Bern	Hi woody, I personally do not think this tube is suitable to build an OTL. For an OTL you usually want high current capabilities and good linearity at relatively low anode voltages, which is not the case for the GS35B. Moreover, this tube is designed as a high power HF triode, requiring forced air cooling. Not really what you want for an audio amplifier... Cheers, Bruno

24th September 2008, 05:00 PM	#3
dadoarica1 diyAudio Member Join Date: Sep 2008	Go with PL-519, especially Made in Germany by SIEMENS, if you can get your hands on NOS stock

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