Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: TIMBO on August 23, 2014, 07:30:32 pm

Title: Tube Cheat Sheet
Post by: TIMBO on August 23, 2014, 07:30:32 pm

Hi guys, I just want to confirm that the cheat sheet that contains the current draw on the heaters is incorrect.

I have a pair of Philips 6CA7s and the data sheet say that 6CA7/EL34 draw 1.5A/tube and the cheat sheet says 1A.Thanks

Title: Re: Tube Cheat Sheet
Post by: DummyLoad on August 24, 2014, 01:22:40 am

Quote from: TIMBO on August 23, 2014, 07:30:32 pm

Hi guys, I just want to confirm that the cheat sheet that contains the current draw on the heaters is incorrect.

I have a pair of Philips 6CA7s and the data sheet say that 6CA7/EL34 draw 1.5A/tube and the cheat sheet says 1A.Thanks

1.5A for either tube. cheat sheet has error. svetlana datasheet says 1.6A. close enough. 


http://www.drtube.com/datasheets/el34-sed2002.pdf (http://www.drtube.com/datasheets/el34-sed2002.pdf)


--pete