Re: Ping Tester/ Complementary emitter-follower

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

Original poster: "Daniel Barrett by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dbarrett1-at-austin.rr-dot-com>

     None at all, will work fine.
     A note here for anyone building pingers- I have been playing around with
the UC3842 switch-mode power supply controller IC lately- These are commonly
available for less than $1.50 and can be worked into pingers easily. The
nice thing about this chip is that it can be made to act like the trusty old
555 timer but has the advantage of a serious low-Z output driver that can
source/sink over an amp. It's a really cool part for this app, check it out!
Digikey has them. I'll post a schematic if anyone is interested.
db



----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, November 15, 2002 10:04 PM
Subject: Ping Tester/ Complementary emitter-follower


 > Original poster: "Jolyon Vater Cox by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>
 >
 > Other than because of the 0.6 volt base-emitter voltage drop what are the
 > reasons if any why a complementary emitter-follower outout stage cannot be
 > used in a "ping tester" for Tesla coils?
 >
 >