Realistic

APM-100

Accessory

Main Details
Maker Realistic Brand Radio Shack Company
Function
Additional Model ID 42-2100
Form Factor Tabletop
Signal Path Analog Hardware
Made In Korea
Date Produced 1977-1982
Notes The following is text from the Radio Shack catalog it was introduced

Low-Cost zero to 100-Watt Audio Power Meter
Be sure ALL the power is going to your speakers

-Indicates if Amplifier is Delivering Rated Power
-Helps Prevent Overdriving Your Speaker Systems
-Monitors at 4 or 8 Ohms

Realistic APM-100. Continuously monitors output power as stereo amplifier and receiver, accurately showing how much power is reaching your speakers. Dual meters read 0 to 100 watts RMS at 4 or 8 ohms. Special circuitry allows meter to respond to short peaks, making it useful as an overload indicator. Easy hookup parallel speaker leads. Walnut vinyl veneer enclosure. 2 7/8 X 6 3/4 X 2 3/4".
42-2100 ...... 19.95

p25
http://www.radioshackcatalogs.com/catalogs/1977/

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