[drifting OT?]
> Can a spark gap tesla be modulated by cw (morse key)?
A spark gap device is not CW (continuous wave).
That Said, my recollection is yes, a 'morse key'
was used (due safety precautions) on 'low'
voltage side. I'm away from references, so
suggest:
Google
Books
search string
wireless zenneck
[recommend caution using smartphone:
my 'droid seems unable to deal with
google books...]
[Zenneck includes multiple references to
Tesla.]
to bring up one instance. There are Many
vintage wireless books lurking on google books
and elsewhere. Most of the olde stuff is
downloadable free...
'section' 116, around p 200 discusses spark
gap techniques.
> Not too cause interference or actually transmit rf but
> just to play with. Back in early days of radio this
> was done with a spark gap transmitter. But I don't think
> they actually had high voltage on the key itself?
Would help to have a numerical value on 'high'
> If I broke the 120v with the key powering the nst
> wouldn't it weld the contacts eventually?
depends on the key used.
> I think I could do it using a 12v relay but not sure bout
> the lag between key closure and relay activation.
> Has anyone heard of this or has messed with spark gap
> transmitters?
> John cooper WT5Y
I'm thinking there are vintage ham fans out there
who would know.
best
dwp
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla