The manual for the B&K Model 667 Solid State Tube Tester covers the setup and operation of the device, including instructions on how to test tubes for shorts, leakage, quality, grid emission, and gas, using a series of switches and indicators. It also provides troubleshooting tips, such as using lockout switches to prevent misleading short indications and ensuring the correct filament voltage is set before inserting tubes to avoid damage.
Manual Overview
The B&K Model 667 Solid State Tube Tester manual provides detailed instructions for testing electronic tubes, emphasizing troubleshooting, error diagnostics, and calibration. The tester performs various tests, including shorts, leakage, quality, and grid emission checks. Shorts and leakage are detected using a neon bulb indicator with a sensitivity of 1 megohm, while grid leakage is measured with a high-impedance FET amplifier. The manual outlines a step-by-step procedure for using the tester, including setting the heater voltage, inserting the tube, and using the lockout switches to prevent false readings. The tester’s lockout feature is crucial for accurately identifying shorts by isolating specific tube pins. Calibration instructions ensure accurate readings, and the manual provides guidance on interpreting meter results for tube quality, categorized into Bad, Questionable, and Good. The tester is housed in a durable, portable case, making it suitable for field use. Proper calibration and adherence to the outlined procedures are essential for maintaining the tester’s accuracy and reliability.
Quick Issues Covered
- Diagnose shorts using neon bulb and selector switch.
- Calibrate using load and heater voltage settings.
- Trace circuits with schematic for lockout switch usage.
Overview
The B&K Model 667 is a versatile, portable solid state tube tester designed to test all commonly used tubes in the electronic industry, including many foreign types. It performs tests for shorts and leakage, quality of cathode emission, and grid emission, gas, and contamination. The tester features easy-to-use lockout pushbuttons and a special tube chart display holder, housed in a durable, weatherproof carrying case. The manual provides instructions on how to use the tester, including setting heater voltage, inserting the tube, and interpreting test results.
Specifications
- Type of Tests: Cathode Emission, Shorts, Grid Emission and Gas
- Test Capabilities and Method:
- a. Tests all commonly encountered tubes plus many special and industrial types.
- b. Multiple filament voltages, loads and lockouts provided.
- c. F.E.T. solid state DC amplifier drives precision meter.
- Short Sensitivity: 1 Megohm
- Short Indicator: Neon Bulb
- Grid Leakage Sensitivity: 100 Megohms
- Grid Leakage Indicator: High input impedance F.E.T. amplifier drives meter.
- Special Features:
- a. Multiple lockout pushbuttons permit rapidly opening any desired combination of tube pin connections.
- b. Reset button clears all lockouts simultaneously.
- Case: Portable attache-type constructed of black, weatherproof, durable molded plastic.
- Size: 10” x 13” x 5.5” thick, including cover
- Input Power: 117 VAC
- 60 Hz continuous duty.
- 50 Hz intermittent duty
- Actual Weight: 6 lbs.
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Refer to the PDF for details.
Operation
Look up the tube in the chart. Rotate the HEATER voltage switch “A” to the indicated setting. Insert the tube in the indicated socket. Depress the RESET pushbutton “B”. Depress the LOCKOUT switches “C” as indicated. Set the LOAD switch “D” to the position indicated. Actuate the POWER switch “E”. To test for all shorts, rotate the SELECTOR switch “F”, pausing in each of its twelve positions, and observe the SHORTS Lamp “G”. A steady glowing of the SHORTS Lamp on any position of the switch is cause for rejection of the tube. Momentary flashes between positions are to be ignored. Lightly tap the tube with a fingertip while rotating for shorts to help locate intermittent shorts. Do not tap with a screwdriver or other hard object, as this may cause damage to the tube. Certain types of video amplifier tubes with high Gm, such as 12HG7 and 6GN7, should not be tapped at all. Set the SELECTOR switch to the position indicated. Depress the LEAKAGE button “H”. A deflection of the meter pointer into the GRID EMISSION—REJECT area of the top scale “J” is cause for rejection of the tube. Depress the QUALITY button “K”. Observe test results on the GOOD-BAD scale of the meter “L”. This completes the test. Turn the tester power off by releasing the POWER pushbutton. Always set the heater switch to the correct filament voltage position before inserting the tube in the socket to prevent burning out the filament of the tube.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Refer to the PDF for details.
Download MANUAL Manual (PDF – 1.7 MB)
Bk-precision-667-instruction manual PDF helps technicians troubleshoot and calibrate the model 667 efficiently. File size: 1.7 MB.
- Brand: Bk-precision-667-instruction
- Model: MANUAL
- Type: Manual
- File size: 1.7 MB
Overview
Brief overview of the product.
Specifications
- Key spec 1
- Key spec 2
Controls & Indicators
Control panel/button layout.
Installation / Setup
- Step 1…
- Step 2…
Operation
Basic usage, modes, cycles.
Troubleshooting & Error Codes
| Issue / Code | Fix |
|---|---|
| Example | How to fix… |
Safety & Warnings
- Important warning…
Downloads
Bk-precision-667-instruction Overview
The Bk-precision-667 is a versatile digital multimeter designed for accurate measurement of electrical parameters in various applications. Ideal for both professionals and hobbyists, this device provides reliable readings of voltage, current, resistance, and continuity, making it an essential tool for troubleshooting and testing electronic circuits and electrical systems.
Main Features and Specifications
- Measurement Functions: AC/DC Voltage, AC/DC Current, Resistance, Continuity
- Display: Large backlit LCD for clear readings in low-light conditions
- Auto-ranging capability for ease of use and accuracy
- Data Hold function to freeze readings on the display
- Overload protection to safeguard the device and user
- Compact and ergonomic design for comfortable handling
- Battery-powered with low battery indicator
Basic Usage and Operation Tips
Before using the Bk-precision-667, ensure the device is properly calibrated and the battery is sufficiently charged. Select the appropriate measurement mode using the rotary switch. Connect the test leads securely to the device and the circuit under test. For voltage measurements, connect the leads in parallel; for current measurements, connect them in series. Always start with the highest range if unsure of the measurement level to prevent damage. Use the Data Hold button to capture and review readings easily.
Troubleshooting and Maintenance
If the device displays erratic readings or fails to power on, check the battery and replace it if necessary. Inspect test leads for damage or wear and replace if faulty. Keep the multimeter clean and dry; avoid exposure to extreme temperatures or moisture. Periodically verify the accuracy of measurements against a known standard and recalibrate if needed. If issues persist, consult the detailed manual or contact authorized service centers.
Safety Reminder
Always observe safety precautions when using the Bk-precision-667. Do not exceed the maximum input limits specified in the manual to avoid electric shock or damage. Use insulated test leads and avoid contact with live circuits. Disconnect power before measuring resistance or continuity. Wear appropriate personal protective equipment and work in a safe environment to prevent accidents.