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Title: Modulation Tubes......some ideas! Post by: WA4WAX on September 17, 2016, 08:24:31 PM More from G3BHJ!
5 watts of class B from a 12AX7? Yep! See page 47 on your pdf reader. http://www.americanradiohistory.com/Archive-Practical/Wireless/50s/PW-1956-07.pdf Title: Re: Modulation Tubes......some ideas! Post by: IN3IEX on October 12, 2016, 06:06:30 AM 1.2W dissipation per triode and high mu; it could be used push-pull with positive grid voltage (AB2), zero bias.
5 watts of class AB2 from a 12AX7 should be possible... More from G3BHJ! 5 watts of class B from a 12AX7? Yep! See page 47 on your pdf reader. http://www.americanradiohistory.com/Archive-Practical/Wireless/50s/PW-1956-07.pdf Title: Re: Modulation Tubes......some ideas! Post by: WBear2GCR on October 12, 2016, 05:06:09 PM pg. 338 of the magazine, but page 52 on my version of Adobe Reader. The 5watts is for both sides of the dual triode run in parallel, with grid current being drawn, intermittent duty. So quite possible. |