Re: SSTC probs

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

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

In a message dated 11/23/01 9:14:14 PM Eastern Standard Time, 
tesla-at-pupman-dot-com writes:

<< Something to note for future experiments.  It is very hard (if not
 impossible? I have not seen it done anyway) to get a nice,
 frequency-adjustable 50% on, 50% off square wave from a 555 UNLESS it is
 the CMOS version.  In this case you can use a circuit like Terry Fritz's
 "Tesla coil tuner."  So you might want to think about an upgrade to a
 different driver soon.
 
  -Carl >>
Yes I have been heavily considering a new driver.Im getting many more probs 
withthe 555.Im losing transistors like crazy and not getting very good 
output.The coil detunes with output.Ive gotten some 3in brush discharge with 
some toploading but as soon as it detunes it cuts off and the MOSFET dies.It 
is VERY hot!It stays cool when i turn down the power BEFORE it detunes.Some 
one mentioned a 556 based circuit using one 555 to pulse the second?Would 
this be any better?Anywho, im thinking of using Richie Burnetts circuit.Im 
tired of the stress my coil brings about.

Matt