Complete manual for the Heathkit GD-1B grid dip meter. With compliments, Jogi, Grid Dip Meter GD-1B Equipment Heathkit Brand, Heath Co.; Benton Harbor MI Select picture or schematic to display from thumbnails on the right and click for. The first Heathkit Grid Dip Meter was the GD-1 and it came on the market in It was replaced in by the slightly improved GD-1A, which in turn was.
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The coils I wound for my Heathkit GD-1B Dip Meter
The GD-1B incorporates its own power supply and is transformer operated from the power line. Many factors were considered in the design of this outstanding instrument, resulting in heatgkit grid dip meter that is packaged with desirable features.
A variable sensitivity control assures adequate range of sensitivity throughout the entire frequency range.
With the oscillator not energized, the instrument acts as a absorption wave meter on high signal level circuits. Radio amateurs and servicemen have proven the value of this grid dip meter many times over, indispensable in the service shop, the laboratory, or the ham shack, for locating parasitics, spurious oscillations, neutralizing, determining RF circuit resonant frequencies, aligning IF stages, traps and filters, and correcting TVI.
Spare, blank dial scales are supplied for the builder who wishes to hand-calibrate this particular instrument, or desires maximum accuracy at specific frequencies.
Transformer operated with selenium rectifier. Notice that one hand operation is possible. Plugging gd1b into the phonejack further extends the instrument’s usefulness through operation as an oscillator-detector for determining the frequency of other oscillator circuits through zero beating.
This set is the 3-prong mounting type and provides continuous extension of low-frequency coverage down to kc.
Originally the grid dip meter found its greatest application in the amateur radio field, but now it is used extensively in radio and TV heatjkit and in experimental laboratories. GD-1B Grid Dip Meter Radio amateurs and servicemen have proven the manhal of this grid dip meter many times over, indispensable in the service shop, the laboratory, or the ham shack, for locating parasitics, spurious oscillations, neutralizing, determining RF circuit resonant frequencies, aligning IF stages, traps and filters, and correcting TVI.
Dial correlation curves are included.
The grid dipper may be held in one hand and tuned, leaving the other hand entirely free for making circuit adjustments. Can also be used to roughly determine capacitor and inductance values, and to provide a relative indication of power in transmitter stages.
Plug-in coils can be quickly changed, and cover the frequency range from 2 mc to mc continuously.