These used oscillators are fully checked out and come with a fresh Calibration Certificate traceable to the NIST! Our Price! $500.00 Ea.
These oscillators are great for stand-alone Frequency Standards, Super-Accurate Time Bases for frequency counters and for most any critical timing application. Diagnostic outputs include: Atomic Resonance Lock Indication, Crystal Oscillator Voltage and Rubidium Lamp Voltage Monitor. Very simple to use, (comes with a schematic of the test fixture that we use to calibrate); minimum requirement is a supply voltage at appropriate current capacity and an indicator (we use an LED) of resonance lock. Also included is the optional Model EEK-10 Heat Sink, and the correct (used) mating output connector. Weight is only 2.2 lbs. Lehman Scientific warranties these units for a period of 6 months. Quantities available. These are available for shipment to the US and Canada. Other countries will be handled on a case to case basis.
NOTE: Very limited quantity still remaining for sale, discounted units available, please call for details. NIST-traceable calibration is no longer available.
|Output:||10MHz Sine Wave, 0.5Vrms into 50 Ohms|
|Signal to Noise:||>120dB in 1Hz band at more than 200Hz from nominal frequency|
|Power Requirements:||28VDC nominal (23 to 32VDC), 13W at 25 deg C, requires approx. 1.7Amp for first 10 minutes for warm-up|
|Long Term Stability:||<1 X 10E-10/mo. (typ. 3 X 10E-11/mo.)|
|Short Term Stability:||<5 X 10E-11 for 1sec. (typ. 2 X 10E-11)|
|Voltage Change:||<1 X 10E-10 from 23V to 32V|
|Temperature Change:||<1 X 10E-9 from -25 deg C to +65 deg C (typ. 5 X 10E-10)|
|Magnetic Field:||<1 X 10E-12/Am(-1)|
|Altitude:||<5 X 10E-13/mbar|
|Operating Temp. Range:||-25 deg C to +65 deg C|
|Storage Temp. Range:||-30 deg C to +70 deg C|
Boonton Model 93AD True RMS Digital Voltmeter, 10Hz to 20MHz, 300uV to 300V fs. True rms voltmeters measure complex, pulse and random waveforms as well as sine waves. The 93AD utilizes a 3-1/2 digit LED display as well as a small edge-meter. The digital display gives clear unambiguous voltage readings while the analog meter is most useful for peaking and nulling applications. Used, guaranteed. Price: $225.00
Chromalox ROPH-143 Heavy Duty Hotplate. (Inv #8899)
Heavy duty hotplate
with three heating positions. Surface temp rating, maximum:
Low to 450°F, Med to 625°F, Hi to 875°F. Dim: 8.5in diameter top. 6.2" high. Power req. 120V, 50/60Hz, 1400W. Very good used condition, fully checked to temp, cleaned, guaranteed. Price: $139.00
Cooper Tools Model 27172AA3 Wire Wrap Tool. (Inv #7379) The Wire Wrap tool is a heavy-duty, easy-to-operate solderless wire attachment tool. Designed for production, installation, and service uses. Features include powerful motor for steady performance, high starting torque, rapid acceleration, and high impact-resistant plastic housing.Accepts bits for wire sizes 22-32 AWG. Operating speed is 2300 RPM. Right-hand rotation. . Double-insulated. Other features include planetary gear reduction drive, insulated collet and collet nut, light trigger pull, and 2-wire 8ft. cord. Power req. 120V, 60Hz. Very good used condition, checked, guaranteed. Price: $125.00
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