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Manufacturer: Helper Instruments Manual: Included (Reprint of original) Modified: Slightly (Replaced potentiometer knobs as they were damaged) Unit has been recently cleaned, inside and out. Works perfectly. Push-push power switch; push/AC VOLTS – push/SINAD switch; rotary AC VOLTS range switch; 1 kHz tone output level control; internal speaker level control. Permanently affixed shielded test cable w/ miniclips. Nine: 10mV, 30mV, 100 mV, 300 mV, 1 V, 3 V, 10 V, +/- 3% of full scale +/- 0.25 dB, 100 Hz to 20 kHz In SINADDER Mode, AGC controlled constant volume to internal speaker In VOLTMETER Mode, range switch and front panel pot control volume. 1000 Hz +/- 1 Hz, 1.5 VRMS into 800 ohm load, Front panel controller 115/230 VAC Strap selectable 50/60 (all content is the responsibility of the poster) |