||Extra rugged polyethylene case
B+ K Precision pioneered the development of CRT testers and holds several
patents on their testing circuits. We are still the leader of the industry
and provide the most technical support.
The 490 is unique - for several reasons.
The 490 measures only beam current that actually passes through the G1 aperture
to the screen. All three guns of a color picture tube are tested in sequence
20 times per sec-ond. Because all three guns are tested simultaneously, leak-age
between the elements of different guns is pinpointed immediately.
Cathode-to-cathode leakage, once virtually impossible to diagnose, is displayed
as positively as common G1 -to-cathode and cathode-to-heater leakage.
Positive Good-Bad Tests
Unlike other testers and restorers, the 490B will give you a definite "yes
or no" answer to tube conditions.
The assortment of adapters supplied with Model 490B has been updated and
will fit over 80% of the CRT types in com-mon use today.
Tests Performed: emission, life, leakage, tracking (color tubes),
focus continuity. Restoring Functions: shorts removal, gun clean-ing and
balancing, cathode rejuvenation.
Meters: Three 2-1/2".
Accessories: CA-23, CA-24, and CA-31 fit more than 80% of recent color
TV and monitor CRTs.
Case: Heavy duty polyethylene, pin hinge, in-lid adapter storage.
Power Requirements: 117 VAC, 60 Hz, 40 watts. 117/230 V, 50/60 Hz
Dimensions (HxWxD): 420x340x145mm (17.7xl3.4x5.7")
Weight: 4.8 kg (10.711 lbs).