output tube options

kendt · 11th January 2007, 03:40 PM

I was wondering if there were any other output tube that could be driven from the same driver stage as a 300b /2a3.

I wanted to experiment a bit. I have a good driver stage that someone shared with me some time ago for a 300b amp but I just find those tubes and the trannies to go with them are just too pricey.

Are there others??

Tom Bavis · 11th January 2007, 05:59 PM

2A3 / 6B4, which requires less voltage and drive, and of course delivers less power. 6CK4 or triode wired 6AV5 for REALLY cheap. Triode wired EL34 or 6550 if you need the 8 watts that a 300B can do.

11th January 2007, 03:40 PM	#1
kendt diyAudio Member Join Date: Dec 2006	output tube options I was wondering if there were any other output tube that could be driven from the same driver stage as a 300b /2a3. I wanted to experiment a bit. I have a good driver stage that someone shared with me some time ago for a 300b amp but I just find those tubes and the trannies to go with them are just too pricey. Are there others??

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11th January 2007, 05:59 PM	#2
Tom Bavis diyAudio Member Join Date: Jun 2002 Location: Macedon NY	2A3 / 6B4, which requires less voltage and drive, and of course delivers less power. 6CK4 or triode wired 6AV5 for REALLY cheap. Triode wired EL34 or 6550 if you need the 8 watts that a 300B can do.