DazyWeb Laboratories Freeware
16K fft linear or log freq plot, ave/peak response, Blackman window, range/reference options, THD, top 10 harmonics readout, pass/fail testing of target harmonics, persistent reference plot, user pips, printplot, savefile options.
Dual channel, vertical and timebase autorange, cursor and auto freq readout, dB/V readout, peak and slope trig controls, data logging of level readouts over 24 hrs, save to disk.
Up to 24 bit 96K sinewave generation stereo L / R / L+R / L-R. 10-48 kHz with Burst Sine, Square, Triangle, Noise, Sweeps from 1 to 20000 Hz, Sawtooth, Pulse trains, Sine plus Noise, DTMF tones, warble sweeps.
CT-4004 Frequency Counter/ACVM
Audio frequency counter and AC voltmeter with rms, data logging, period measurement.
Scientific Calc with metric conversions, 4 mems. Hex/Dec/Bin Calc; Lowpass-Highpass RC Calc.
PC based test system that does automated frequency response, separation, thd vs frequency, frequency counter, spectrum analysis. Generator does sine, square, triangle, noise and burst waveforms. Savable panels and scriptable procedures using VBscript.
DS-1004 Four Channel Oscilloscope
PC soundcard (requires 2 per pc) based oscilloscope to monitor Left/Right channels of two soundcards simultaneously. Has frequency counters and AC voltmeters for all 4 channels displayed simultaneously. Autoranging of levels and timebases independent on all 4 channels or manually adjustable, 8 memories of previous traces.
Requires external hardware as outlined in the help file. Measures AC line voltage, current, true rms watts, VA, crest factor of V and A, Power Factor, Line frequency and displays a scope display of the ac line voltage and current.
Semi Transparent equation evaluator with memories and seperate hex calc, High pass, Low Pass, Time Constant, resistor Calc panels.
Four timers in one. Can count-up, count-down, be chained together and auto repeated with number of elapsed loops shown. Beep, Warble, Flashing display, play WAV, parallel port pin toggle, serial port command send, program launch or messagebox alarms with unique tone for each alarm. W95-XP compliant.
Comm app for use with RS232 serial ports for troubleshooting embedded systems such as microcontrollers, dsp, etc.
DazyCalc 2.0 Expression Calculator
Expression solver with programable scripting, hex-dec-bin ops, 2D,3D equation graphing, loan calc, electronic formula functions, statistics with regression analysis, geometry calc, advanced text editor, image editor/viewer, complex math, matrix math, linear equation solver, unit conversion, chartmaker/ graph plotter, periodic table, equation illustrator, hex viewer, schematic editor.
Analog Design calculator for the Intel Mac calculates resistor dividers, parallel resistors, RC low pass and high pass filters. Auto calculates power dissipation in resistor dividers. Retains last calculations at power down.Has a 5%, 1% common value chart built in.
Mathematic expression evaluator with six user memories and six custom user formulas. History log of all calculations. Retains all data for next session. Some custom metric and engineering functions.
