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

Re: what is this?



Original poster: "robert & june heidlebaugh by way of Terry Fritz <teslalist-at-qwest-dot-net>" <rheidlebaugh-at-desertgate-dot-com>

Josh: When using a vacuum tube transmitter with direct modulation it is
required to heat the fillament, in this case, to 8 volts but isolate the
filiment with some high voltage insulation. Usualy 1000 volts or so above
ground as the circuit is wired with tubes connected in series. This is a
filament transformer made to provide the 8 volts and high current with
enough isolation to opperate the tube well above groung potential.
    Robert  H
-- 


 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > Date: Fri, 13 Jun 2003 18:11:16 -0600
 > To: tesla-at-pupman-dot-com
 > Subject: what is this?
 > Resent-From: tesla-at-pupman-dot-com
 > Resent-Date: Fri, 13 Jun 2003 18:16:48 -0600
 >
 > Original poster: "J Dow by way of Terry Fritz <teslalist-at-qwest-dot-net>"
 > <jdowphotography-at-hotmail-dot-com>
 >
 > http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=3029990603&category=4675
 >
 > hello all
 > do you fellas know what this is?
 >
 > thanks
 > read you later
 > Josh
 >