Aside from vacuum
tubes occasionally going bad, capacitors were undoubtedly the most frequently failing
components in television and radio sets. All electronics of the era (and earlier)
of this 1954 issue of Radio & Television News magazine had chassis
full of high voltages and high temperatures which really strained the integrity
of capacitors, especially electrolytic types used in power supplies and plate circuit
decoupling circuits. As if a couple hundred volts wasn't challenging enough, TV
cathode ray tubes (CRTs) often had bias voltages over 10 kilovolts. Most of
us over 60 years old recall at least one instance of a sizzle followed by a loud
pop, followed by the television going dark when a capacitor failed. It always seemed
to happen at the most intense point of a program. Of course when that kind of failure
occurred you knew the set would be out of service for a while since Dad wouldn't
be able to fix it by pulling out all the tubes and taking to the hardware to test
them all on the automated machine. In our very low income house with five kids,
everyone scrambled looking for change in pants pockets and under sofa cushions to
help fund a rapid repair. Repair shops replaced a lot of electrolytic capacitors
(referred to as 'lytics in this ad) at the time.
Sprague Capacitors Ad
Never thought we could get pictures with
so much puch 'til we had those Sprague Capacitors put in.
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Insist on Sprague Twist-Lok* 'Lytics
Sprague TVL's fill the top performance bill in the toughest TV circuits. High
temperatures, surge voltages, ripple currents won't faze them. Like all Sprague
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Insist on Sprague Black Beauty® Telecaps®
The most imitated capacitor Sprague ever introduced. But you get Sprague performance
only when you insist on Sprague Telecaps. Hundreds of millions are in use today
as first choice of quality conscious manufacturers and servicemen. It's the premium
molded tubular at no extra cost.
Get your copy of Sprague's latest radio and TV service catalog C-610. Write Sprague
Products Company*, 51 Marshall St., North Adams, Mass.
*Distributors' Division of Sprague Electric Company
World's Largest Capacitor Manufacturer
Posted November 4, 2022