Description
The Ballantine 314A Video VTVM (Vacuum Tube Voltmeter) is a high-quality and reliable piece of equipment used for measuring voltage in electronic circuits. With its vacuum tube technology, the 314A is capable of accurately measuring voltage levels with precision and stability. Its video display provides clear and easy-to-read readings, making it ideal for both novice and experienced technicians. The sturdy construction and durable design of the 314A ensure that it can withstand the rigors of daily use in a variety of settings. Overall, the Ballantine 314A Video VTVM is a valuable tool for anyone working with electronic circuits and voltage measurement.
Specifications
– Model: Ballantine 314A
– Type: Video VTVM (Vacuum Tube Voltmeter)
– Frequency Range: 5 Hz to 1 MHz
– Input Impedance: 1 Megohm, 47 pF
– Sensitivity: 1 mV full scale
– Accuracy: ±2% of full scale
– Tube Complement: 12AT7, 6AL5 (2), 6X4
– Power Requirements: 105-125 VAC, 50-60 Hz, 25 watts
– Dimensions: 10.5 x 13.5 x 6.25 inches
– Weight: 18 lbs.
SKU: BALLANTINE 314A
Category: Uncategorized
Manufacturer: Ballantine
Model Number: 314A
Frequency Range: 10 cps to 6 Mc.
Decibel Range: -80 db to +40 db
Accuracy: at any point on scale, any voltage. Error does not exceed, 2%, 20 cps to 2 Mc; 3%, 10 cps to 4 Mc; 5%, 10 cps to 6 Mc.
Null Detector Mode: Sensitivity increases 10 db. Frequency range 10 cps to 6 Mc. Minimum indicated voltage 30 MV
Scales: Logarithmic voltage scale, 0.9 to 11. One linear db scale, 0 to 20. A mirror is located between the two scales for precise readings.
Input Impedance: 10 M shunted by 7.5 pF with probe and 2 M shunted by 15 or 25 pF without probe.
Characteristics of Amplifier: Maximum gain 60 db. Max. un- distorted output voltage 2 V. Source impedance 700 2. Frequency
Signal Rectification: Average-responding. Instrument calibrated in rms of a sine wave.
Stability: For line voltage change of 10% from 115/230 V, variation is less than 1/5 of the stated accuracy.
Warmup time: Usable after 20 seconds under normal laboratory conditions. Reading is within 2% of final value in 10 minutes.
Power supply: 115/230 V, 50 to 400 cps, 40 watts.
Color: Portable, gray panel with black case. Rack, gray or special to customer’s specifications.
Size (inches): Portable, 13 high x 7% wide x 9% deep. Rack, 7 high x 19 wide x 8% deep.
Weight: Portable or rack, instrument alone, 13 pounds.
Shipping Weight: Portable 20 pounds, Rack 32 pounds.
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Our Capabilities
Micro Precision can perform instrument calibration services on equipment from variety of applications for specific industries and lines of business. If you have a calibration need that is not listed in this area, please contact us.
Electrical
Micro Precision accredited electrical calibration lab services with multimeter, multifunction calibrator, oscilloscope, and power supply capabilities.
Optical
Micro Precision accredited optical, light, and fiber optic calibration lab services.
Thermodynamics & Chemical
Micro Precision accredited thermodynamic & chemical calibration lab services with temperature, humidity, life science, and pharma capabilities.
RF - Microwave
Micro Precision accredited RF & microwave calibration lab services.
Mechanical & Dimensional
Micro Precision accredited mechanical and dimensional calibration lab services with pressure, torque, force, flow, velocity, and aircraft jack load capabilities.
Laboratory Standards
Calibration laboratory standards are critical for your organization’s most accurate measurements.
Semiconductor Calibration
Micro Precision utilizes state-of-the-art technology to analyze semiconductor wafer thickness and step height.



