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JB-150 Tube heating issue help!

Question about the JB200. In the attached schematic, it shows bias is applied as -120V in RX, and -36V in TX. Why is that? Would -36V not be enough to keep the tubes turned off in RX since it's 2 tubes vs just 1 of the same tubes in the JB150 which uses -36V on RX?
- 443
- Post #32
- Dec 31, 2010
- Forum: Amplifiers

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