Microwave leakage detector
The Microcheck model SMW-1 non contact microwave leakage detector from A.W Sperry Instruments reads microwave radiation leakage as low as 0.1mW/cm^2 and the midscale of the meter is calibrated at 1.0mW/cm^2. The detector uses no leads, switches, control settings or batteries.
Electromagnetic radiation monitor
Walker Scientific is offering a monitor for measuring low-level electromagnetic field radiation. The ELF-50 field monitor is a hand-held instrument that measures the extra-low-frequency (ELF) electromagnetic field radiation generated from any ac 60Hz device. A 10-segment LED display illuminates to indicate the level of radiation present. The monitor features two measurement ranges: low range, from 1 to 512 milli-gauss; and high range, up to 51.2 gauss.
Semiconductor tester
The Semi-analyzer 59C from Electronic Design Specialists helps servicers troubleshoot to a defective component.
The 59C version 002 will check semi-conductor junctions in-circuit; read out the type, polarity and condition of the component under test; check components, such as capacitors, semi-conductors, neons and LEDs, for leakage, voltage breakdown and noise level; and trace active audio, video or digital circuits with a signal-tracer function, which also displays dc voltage riding on the signal with 3 1/2-digit accuracy.
Tool kit
Jensen Tools has introduced a tool kit with a vulcanized fiber case; double stitched, heavy-duty canvas pallets; and more than 60 tools. The JTK-14 kit includes screwdrivers, nutdrivers, ignition wrenches, hex keys, six pairs of pliers, a penlight, an electrician's knife, scissors, a ball peen hammer, a mini hacksaw and a soldering iron.
DC circuits video program
Bergwall Productions has released the "E16 Basic Electricity: DC Circuits" video. The video describes series loads, polarity, open circuits and fuses. Simple mathematical circuit analysis and Kirchhoffs voltage and current laws are introduced. Resistors and their color coding are described, and a demonstration of ohmmeter use is performed. The video teaches how to calculate tolerance, current and voltage levels in combination parallel and series circuits, and how to measure resistance.
Benchtop ionizer
Chapman has announced another version of the VSE 3000 benchtop ionizer.
The updated version that requires no disassembly allows easier access to the emitter points. A specially designed cleaning brush is inserted through the front screen to clean the emitter points.
The self-balancing unit has a removable tilt stand and a larger fan for greater air volume at lower speeds.
VCR maintenance and belt kits
Thomson Consumer Electronics has announced the addition of four VCR maintenance kits and two VCR belt kits.
The maintenance kits replace wear related items in more than 125 RCA and GE VCRs. The kits include tension bands, idlers, pressure rollers and clutch/plates. The packages contain re placement information by RCA and GE instrument model numbers and include cross-references to model numbers for Hitachi, Magnavox, Panasonic, Philco, Quasar and Sylvania VCRs.
Oscilloscope probe
The PR200A oscilloscope probe from Philips ECG has a 200MHz bandwidth and is switchable in X1, X10 and REF. Also featured is a thumb-switch with positive detents, a 57-inch flexible cable and a 360 degree rotatable ground clip. Also included is a ground lead and clip, BNC adapter, IC tip, insulating tip, retractable hook and trimmer tool.
Digital multimeters
The SOAR models 3255 and 3250 hand-held digital multimeters from Carlo Gavazzi Instruments offer industrial-rated cases; LSI design technology; and 3,200-count, full-scale analog bar graph displays. The DMMs have auto and manual range selection, data hold, high-speed sampling and autoranging of six per second, up or down. Accuracy for the DMMs is 0.3%. Current measurements range from 300pA to 10A, ac/dc. Voltage measurements range from 3mV to 1,000V for dc, 3V to 750V for ac.
Audio generator
B&K Precision has introduced a pocket-size audio generator with a frequency range of 20Hz to 150kHz. The model 3001 is a RC-type oscillator that features selectable sine- or square-wave outputs with a 23-position rotary switch and a x1/x100 slide switch to select from 46 frequencies. A separate sync output provides a fixed-level signal at the same frequency and phase as the main output.
Autoranging DMM
The DM5 DMM from Universal Enterprises is a pocket-size, autoranging DMM that features an audible continuity buzzer, a diode-test function, a 3 1/2 digit LCD display, and low-battery and overrange indicators. The meter auto-ranges over five dc voltage ranges from 200mV to 500V, four ac voltage ranges from 2V to 500V, or six resistance ranges from 200-ohm to 20-M ohm.
Scope probe
The 150MHz scope probe from Test Probes has a risetime faster than 1.5ns. The probe eliminates cable microphonics, external interference and is sealed against moisture. The probe has self cleaning switch contacts, a replaceable ground lead, strain relief and connector crimp.
Oscilloscope probe kit
The 4900K and 5100K series Gold Probes from Probe Master have 18 accessories. A variety of models offer bandwidths of 35MHz to 350MHz, a readout actuator option and various cable lengths. The Convert-A-Tip feature provides a heavy-duty threaded tip (0.055-inch diameter) that can be replaced with a micro-tip (0.030-inch diameter).
Surge protectors
Three surge protectors have been introduced by Data Spec. The DSTM2 modem/fax/telephone lightning surge protector features maximum energy dissipation and plugs directly into ac out let sockets. The D6OUTSP ac surge protector is a six-outlet strip that offers continuous spike protection, a built-in circuit breaker and a master switch with pilot light. The SP011 offers the same features as the D6OUTSP, but is wall mounted. The SP011 automatically resets after brownouts or surges.
Analog/digital multimeters
Soar's 3200 series, 3 1/2-digit multimeters, available from HMC, feature a 32-segment, analog bar-graph LCD display and audible continuity. The meter selects the range with the greatest ac curacy and resolution and shows function and measurement range. The Range button prevents the instrument from changing ranges. Model 3230 has a DATA-H button that captures the measurement, beeps and locks it on the display.
Wire stripper
Rush Wire Strippers has introduced model MH-1, a hand-held, thermal wire stripper. The stripper is designed for stripping thermoplastic insulation, including Teflon and PTFE, from solid or stranded wires from 12 to 43 AWG. A self-contained, continuously rated power unit is connected to the handpiece to provide variable temperature up to 1,400°F. The stripper has a strip-length stop and positive tweezer action.
Frequency adapter
Ertech has introduced a frequency-to voltage converter that attaches to any multimeter and can measure from 2kHz to 2MHz with an accuracy of 1% of reading. Minimum sensitivity is 100mV rms (2kHz to 10MHz range) and 200mV rms (2MHz to 200MHz range). Overload protection is 400Vac/dc. To operate, attach the adapter to a multimeter via banana plugs, switch to the multi-meter's 200mV range and select the frequency range.
Oscilloscope
Brunelle Instruments has introduced a line of 20MHz oscilloscopes built into a metal case. The scopes feature wide bandwidth, a bright screen and TV and video sync. Model 2987 has a component tester; model 2989 has a cursor for measuring voltage, frequency and period.
Sweep function generator
Model FG3A sweep function generator from Beckman Industrial features seven frequency ranges covering 0.2Hz to 2MHz, and an array of signal outputs, including sine wave, triangle wave, square wave and TTL and CMOS pulse outputs. The FG3A can add logarithmic or linear sweep to the selected signal outputs, or perform AM or FM modulation with internal or external signals. The generator has a built-in, 5-digit frequency counter and a voltage-controlled frequency jack.
Hand-held multimeters
The 80 series hand-held multimeters from John Fluke Mfg. offer capacitance measurement, frequency, duty cycle, simultaneous minimum-maximum average recording, relative (zero) model and Touch Hold, which beeps when it senses a stable reading and locks it on the display. The true-rms 87 offers back lighting and a user-selectable, 4 1/2-digit (20,000 count) mode in addition to the 3 3/4-digit (4,000 count) digital display of the other models. It also features a Peak Min Max recording mode for capturing transient events to 1 ms or sine wave plus or minus peaks to 400Hz.