[TCML] having problems with vttc tuning...

["giorgio a. di donfrancesco" <giorgiodidon@xxxxxxxxx>]

hi all, i'm having some problems in vttc oscillation starting,the design is
almost tha same of this:

http://www.stevehv.4hv.org/VTTC4.htm

diferences: mot not doubled, grid leak resistor of 1500ohm (100w)

assuming the tube is ok (but at this point i'm not so sure!) what can i do
start oscillation so i can proceed in tuning? i checked mot voltage that is
ok, mmc tank cap is ok.
any suggestion?
thank you all.
giorgio
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