Here is a nice Lodestar audio generator/counter. Its really a great system that has held up well over the years, everything seems to be fully operational, but I am currently unable to fully test this unit. Cosmetically it is still in great shape also. But due to the age of the item it is being sold "as is".


Specifications:
Oscillator section
*Frequency range: 10Hz ~ 1MHz 5 decade bands.
*Accuracy: With counter section accuracy.
*Output impedance: 600?, unbalance.
*Output control: 0dB / -20dB / -40dB and fine adjuster.
Sine wave output
*Range: 10Hz ~ 1 MHz.
*Output voltage: 8Vrms, max.
*Output distortion:
-Less than 0.05% 500Hz ~ 50KHz.
-Less than 0. 5% 50Hz ~ 500KHz.
*Output flatness: ±1dB (1KHz).
Square wave output
*Range: 20Hz ~ 20KHz.
*Output voltage: 15Vp-p or more.
*Rise time: 0.5us.
Synchronization
*Range: ±1% / V of oscillator frequency per Vrms.
*Input impedance: Approx 10K?.
*Maximum input: 10Vrms.
Counter section
*Frequency range:
-10Hz to 150MHz.
-HF 10 Hz to 10MHz.
-VHF 10MHz to 150MHz.
*Accuracy: ±1 count, ±reference time accuracy.
*Gate time: 0.1 sec and 1 sec.
*Input sensitivity:
-35mV ~ 50mV.
-10Hz ~ 150MHz.
*Input Impedance: HF1M? VHF50?
*MAX input voltage: Less about 3V effective.
*Reference time frequency: 10MHz.
*Reference time accuracy:
-5 x 10-5 (50ppm) 0°C to 40°C.
-1 x 10-5 (10ppm) 23°C ±3°C.
*Display: Decimal 6 digital LED.
*Power requirement: AC 115 / 230V ± 10% 50 / 60Hz Approx 4VA.
*Dimensions & weight:
-215 (H) x 120 (W) x 220 (D) mm.
-Approx 1.6 kgs.

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