[Amps] GS35B Bias

[Ian White, G3SEK]

Ed Stallman wrote:
>what voltage zener should I us for the GS35B triode in GG, using 4000 volts
>HV under load to get close to 100 mills bias? I don't remember were I read
>it now? but I think 100 mils idling current is what I need?

About 35V. There's a circuit on my site, at
http://www.ifwtech.co.uk/g3sek/boards/triode/an5-1.0.pdf
which is probably cheaper than a large zener and gives adjustable 
regulation.

100mA idling is a bit on the low side; 150mA may give noticeably better 
IMD performance (but even that was originally someone's guess).

-- 
73 from Ian G3SEK         'In Practice' columnist for RadCom (RSGB)
                            Editor, 'The VHF/UHF DX Book'
http://www.ifwtech.co.uk/g3sek