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Registered Member #2500
Joined: Thu Dec 03 2009, 03:29PM
Location:
Posts: 7
Hello i'm new to HV elektronics (in english language) and i have few questions about sgtc
first i am planing to built this TC
i already have MOT and gona go to bui other parts but i have no idea what does "off-the-shelf choke" stands for and what it does in tc. next: i have 0,3mm diameter coper vire and gona vind it on 100mm PVC pipe will it be good? like 1200 - 1300 windings, also can i use polyester resin instead of epoxy? because its cheaper and i have about 0,5l in my posses. wont it eat coat on vire?
Registered Member #2292
Joined: Fri Aug 14 2009, 05:33PM
Location: The Wild West AKA Arizona
Posts: 795
Giedrius wrote ...
Hello i'm new to HV elektronics (in english language) and i have few questions about sgtc
first i am planing to built this TC
i already have MOT and gona go to bui other parts but i have no idea what does "off-the-shelf choke" stands for and what it does in tc. next: i have 0,3mm diameter coper vire and gona vind it on 100mm PVC pipe will it be good? like 1200 - 1300 windings, also can i use polyester resin instead of epoxy? because its cheaper and i have about 0,5l in my posses. wont it eat coat on vire?
thanks Giedrius
That would be a good number of winds for a DRSSTC or SSTC but for a SGTC I would use under 1000 winds. As for the polyester resin I don't know if it will work, I have never used it but I do know that polyurethane works well to but not as well epoxy (It's just cheaper).
Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Off-the-shelf means something you can buy in a store.
I used four chokes (inductors) meant for filtering power supplies in tube audio amplifiers, they cost about £6 each from Maplin. They were only available in the UK, and they don't sell them any more. I've since dismantled the coil and reused the chokes in a tube amp.
I've also seen people use MOTs modified to include an air gap in this circuit. Two or three in series usually does it, any fewer and the rotary gap will suffer from power arcing.
This doesn't really make sense though: if you have several MOTs, why are you building my design? The whole point of it is that it only needs one MOT.
Registered Member #2500
Joined: Thu Dec 03 2009, 03:29PM
Location:
Posts: 7
thanks for explanaition i have 2 halogen ligts induktors (or something like that, looks like transformer but only with single vindings, no secondary) they are rated at 40W. if i canet them in series, can use them insted of that choke in scheme?
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Few questions regarding sgtc
