Radio today (Sept 1935-Dec 1936)
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MAKE YOUR INVESTMENT
TODAY
PAY BIGGER DIVIDENDS
TOMORROW
Model 1200— Volt
Ohm M ill iam meter Dealer Price $21.75
Buy one unit today.
Own a complete
aster Tomorrow.
Model 1206
Master Unit Test Set
Dealer Price $84.33
OBSOLESCENCE is the bugaboo of radio. It is particularly the bugaboo of the radio serviceman when it comes to investing in test equipment
Of course there are going to be changes in radio; of course this industry is going forward. But test equipment can be designed whereby possible loss from obsolescence is minimized. For instance, it is hard to conceive of a radio change that would obsolete the Triplett VoltOhm-Milliammeter, as this measures the electrical standards of the volt, the ohm and the ampere.
Consider also, the Triplett Master Unit Test Set is built up of four distinct units, the VoltOhm-Milliameter, the Tube Tester, the Signal Generator and the Free Point Tester. Every precaution has been taken against obsolescence with each individual unit. But if a revolutionary change should come along, all units would certainly not be obsoleted. Compare this then, with other equipment from the standpoint of obsolescence and you will realize why your investment today in Triplett will pay bigger dividends tomorrow.
More and more dealers are learning that the right service equipment to own must combine with quality, these additional features : portability, compact size, maximum protection against obsolescence and minimum risk from unavoidable damage. If you too want all of these features, insist on Triplett.
SEE YOUR JOBBER
* P/vtcUixm*
ELECTRICAL INSTRUMENTS
| The Triplett Electrical Instrument Co.
. 197 Harmon Drive |
I Bluffton, Ohio I
I Without obligation please send me
I More information on Triplett Master I
Unit Test Set.
, Name
' .M I
I Address
, City State .
SERVICE NOTES
(From page 52) casual, and is seldom sufficiently critical to note the existence of data indicating that changes have been made in the chassis.
Changes in chassis are far more numerous than they were in the past. True, the manufacturers identify these chassis by one form of coding or another, but much time is lost in many service shops because service men do not take the trouble to establish the presence of the identifying symbol indicating that a variation exists.
INCREASING PROFITS WITH AUTOMATIC LINE SWITCH
• L. M. Parker, Sherrill, N. T., tells in the RCA Service News how he turns a 50 cent job into a $5 one.
"When called to service broken switches, I have cut out the defective switch, shorted the leads, and plugged the set in a 'Mark time' switch. This can be done in less than a min
ute, and 7 out of 10 people are glad to pay the cost of a device which automatically turns the radio on or off at a predetermined time."
AUTO RADIO GROUNDS
* Service note from Galvin Mfg. Co. (Motorola) strongly advocates complete grounding of auto radio sets.
"We have come to this conclusion after checking numerous installations, and in every case, without exception, we were able to eliminate all ignition interference by improving the ground connections at the following points:
1. Set mounting bolts
2. Junction box grounded to the cowl, not to the instrument panel
3. Dome lite filter grounded to the cowl — not to the instrument panel
4. Grounding the junction box to the frame of the car — not to the running board when using under-car aerial
(To page 64)
AUTOMOBILE ANTENNA AND BATTERY GROUNDS CHART
CAR
1930
1931
1932
1933
1934
1935
1936
p..
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N No
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Studebaker....
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1
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l
* Some
■ode
1 s have
N. ground.
•» st<
ndard..YES Master. .No
f Some
■odels ha
it buiit
n antenna.
N Negative better
y ter
minal gro
unded to ch
■ssis. Yes
Car equipped with built in ant
enna.
assis. . No
Courtesy General Electric Co.
62
Radio Today