[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

2 questions: SRSG & LTR Caps



Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Mddeming-at-aol-dot-com>

Tried firing up a SRSG with phase control tonight with dismal results. I
suspect the components are of incompatible size. No significant change in
phase(<5deg), even using modified strobe (per Terry) to check visually.

1.     Salient pole motor 1/7 HP 3600 RPM 
2.     6"  2-electrode disk
3.     3.5A 120 V Variac
4.     15uf -at-660V Cap
5.     47K-ohm resister across cap
6.     5A fuse
While I have lots of caps and resistors, but don't have a feel for direction or
order of magnitude of change needed. Anyone with experience please advise.

For LTR Caps with 15 kV NSTs is the rule of thumb of 0.5nF per mA fairly linear
for 30-300 mA? i.e. 15nF -at-30 mA, 30 nF -at- 60 mA, etc.

Thanks, 
Matt D.
G3-1085