Triplett Electric Instrument Company has
been in continuous operation since 1904, although today it goes by the name Triplett
Test Equipment & Tools. It was founded in 1904 in Bluffton, Ohio, by Ray L.
Triplett. Mr. Triplett is holding his company's first vacuum tube tester, the
Readrite Model 201, which debuted in 1921, in this full-page advertisement that
appeared in a 1954 issue of Radio & Television News magazine. Triplett
claims it is the first commercial tube tester. A pretty extensive search did not
turn up any photos of the Model 201 tube tester, but there is a follow-on Model 215
tube tester on Steven Johnson's
Readrite & Triplett
history webpage. Here, too, is a very informative page outlining
Triplett's history, including a picture of the "portable" ammeter built into
a pocket watch case. The "new" Model 3423 Mutual Conductance Tube Tester, priced
at $199.50 in 1954, is the equivalent of $1,901.50 in today's money (per the
BLS Inflation Calculator).
Triplett Electrical Instrument Company Advertisement
From First to Foremost
50 Years of Setting Standards
Ray L. Triplett with the first commercial tube tester - a Triplett production
- and Triplett Model 3423, the leading tube tester of today and tomorrow. See it
at your parts jobber Model 3423 Mutual Conductance Tube Tester. Dealer's net $199.50
The only tube tester designed with 50 years experience. Two important lesson
are learned, from experience, by the manufacturer of test equipment. First, the
value of test equipment to a service man is in direct proportion as it reduces his
necessary labor and increases his profit for the same span of work time. Model 3423
will give you no false readings to waste time - the patented circuit for tube testing
employs actual signal (4 kc) for grid signal. It also has a complete coverage of
all tube types - sic plate voltages (including 0-10 variable). Micromhos scales
read 0-1800, 0-6,000, 0-18,000 and 0-36,000.
Secondly, test equipment costs money and the purchase must be protected against
quick obsolescence. In Model 3423 the multiple switches allow making any combination
of tube connections and is protection against soch obsolescence.
Ask your jobber to demonstrate the many other extra features of this tester.
Only Triplett offers you a ten day free trial on all test equipment.
Triplett Electrical Instrument Co.
Posted June 23, 2020