SOURCE: Wattage Power
Unfortunately, the old owner's manual doesn't say, but you can do a test to see what its heating power is:
MICROWAVE HEATING POWER
TEST
The
following test will provide a suitably accurate measurement of the
output power of any microwave oven. Variations or errors in performing
this test will produce uncertain results. If the line voltage (from the
electrical outlet) is low, the magnetron output will be correspondingly
low.
Equipment needed:
- Microwave safe
container with 1000 mL (1 Liter) gradation.
- Fahrenheit or
centigrade thermometer
Procedure:
Pour
exactly 1000 mL (1 Liter) of cool tap water into the container. Using
the thermometer, stir the water, then measure and record the
temperature. For accurate results the water should be about 60 degrees
F (20 degrees C).
Place the container on
the center of the
oven cooking shelf (do not leave the thermometer in the container and
remove any metal racks), and heat the water (at full power) for 63
seconds. Use the second hand of a watch, not the oven timer.
After
the heating time is completed, immediately remove the container, stir
the water, re-measure and record the temperature of the heated water.
Subtract the starting
water temperature (step 2) from the ending water temperature (step 3)
to obtain the temperature rise.
To
determine the output power in watts, multiply the total temperature
rise by a factor of 38.75 if you're using a Fahrenheit thermometer or
by 70 if you're using a centigrade thermometer.
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