RE: Initial design of SRSG - 3D Model

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Mccauley, Daniel H by way of Terry Fritz <twftesla-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>


That would be cool if you had the time.  I know in the old days (especially
when using rotary spark gaps for radio), they frequently spaced some wide
discs to the electrodes to act as heatsinks.

Dan



> 	If any of you would like, I could scan some pictures of several
> interesting rotary gap ads from QST magazine, circa 1919 to 1921, and
> file them in Terry's archives (if I can remember how).  They show
> several different designs, some of which might be of current value. 
> Several use a cast ring with electrodes, mounted on an insulating disk
> which is connected to the motor.  Another very interesting design has
> the gap enclosed in an "almost air tight" aluminum housing, with the
> claim that it is "nearly silent".  (In those days the sound of the gap
> was deafining (sp?), even with the input powers of only a kW or so.) 
> Another advantage of that design would be that the light from the spark
> wouldn't be visible either. I suspect that heating would be a problem
> with a long run, but.....
> 
> Ed
> 
> 
>