EXTENDING TRANSMITTER TUBE LIFE
A carefully followed program of filament voltage management can substantially increase the life expectancy of transmitter power grid tubes. With today’s rising operating costs, such a program makes good financial sense. One way to offset higher transmitter operating costs is to prolong tube life. For years station engineers have used various tricks to get longer operating life, with greater and lesser degrees of success. Success can be maximized, however, by understanding the various factors that affect tube life and then implementing a program of filament voltage management.
Link to white paper.
Some current data
Harris HT10 transmitter Power Tube and Parts:
4CX7500A EIMAC tetrode
Richardson Electronic Pricing:
New $4125- Warranty 12 months or 5000 hours
Econco $1380 trade in (plus $ to pull before hand so about the same).
Warranty months 3000 hours.
800-348-5580
(8760 hours in a year)
Econco Direct:
$1469 trade in
1-800-532-6626
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