[Amps] gs35b on hf problem .

[Carlo Houben]

Hi , i am building a hf amp around a gs35b (new old stock ) in a GG configuration 
g3sek triodeboard for control .
HV 3300V no load .
The following is my problem :
1/  My glitch resistor  33 ohm  17 w passed out by measuring  zero signal anode current .
first it was 20Ma and after i put the bias voltage to around 29 V it was 100 Ma .
but after 3 times ptt the glitch resitor past out .
annyone an idea where i have to look for .
Thanks in advance .
73
ON4BR