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Схема частотомер ч3 24


This is a rather sensitive circuit which will detect minute variations of a magnetic field, particularly the Earth magnetic field. If you feel that somebody is tampering with your telephone line you might find this little circuit useful. Телевидение Телефония Узлы цифровой электроники Фототехника Шпионская техника. Although originally designed for application in a communications system, the idea is readily adaptable for certain electronic music applications where waveform conversion is desired.

This circuit converts a square waveform to a triangle waveform while automatically maintaining a constant triangle amplitude for a wide range of input frequencies. This version has a feature which automatically turns off the tester after about two minutes, thereby saving the 9 volt battery from inadvertent discharge.

Частотомер Ч3-64/1

Схема частотомер ч3 24

It detects if there is another telephone connected to the line, if there is a short or an open line. It produces both square and triangular wave outputs that ascend from about 80 to Hertz in a repeating cycle of about 12 seconds. This is a rather sensitive circuit which will detect minute variations of a magnetic field, particularly the Earth magnetic field.

If you feel that somebody is tampering with your telephone line you might find this little circuit useful. This version has a feature which automatically turns off the tester after about two minutes, thereby saving the 9 volt battery from inadvertent discharge. Although originally designed for application in a communications system, the idea is readily adaptable for certain electronic music applications where waveform conversion is desired.

Схема частотомер ч3 24

Телевидение Телефония Узлы цифровой электроники Фототехника Шпионская техника. Appropriate component-value substitutions will yield variations in these parameters. Although originally designed for application in a communications system, the idea is readily adaptable for certain electronic music applications where waveform conversion is desired. This is a rather sensitive circuit which will detect minute variations of a magnetic field, particularly the Earth magnetic field.

This version has a feature which automatically turns off the tester after about two minutes, thereby saving the 9 volt battery from inadvertent discharge.

This is a rather sensitive circuit which will detect minute variations of a magnetic field, particularly the Earth magnetic field. This version has a feature which automatically turns off the tester after about two minutes, thereby saving the 9 volt battery from inadvertent discharge. It detects if there is another telephone connected to the line, if there is a short or an open line.

It produces both square and triangular wave outputs that ascend from about 80 to Hertz in a repeating cycle of about 12 seconds.

Схема частотомер ч3 24

It produces both square and triangular wave outputs that ascend from about 80 to Hertz in a repeating cycle of about 12 seconds. Appropriate component-value substitutions will yield variations in these parameters. Although originally designed for application in a communications system, the idea is readily adaptable for certain electronic music applications where waveform conversion is desired. This is a rather sensitive circuit which will detect minute variations of a magnetic field, particularly the Earth magnetic field.

If you feel that somebody is tampering with your telephone line you might find this little circuit useful. Among the essentials for circuit design and prototyping is the continuity tester, a simple device which provides an audible indication when a sufficiently low resistance is applied between its input probes.

Appropriate component-value substitutions will yield variations in these parameters. It produces both square and triangular wave outputs that ascend from about 80 to Hertz in a repeating cycle of about 12 seconds. Although originally designed for application in a communications system, the idea is readily adaptable for certain electronic music applications where waveform conversion is desired.

Схема частотомер ч3 24

Схема частотомер ч3 24

This circuit was designed for a sound effect, but may serve other useful purposes when a basic, swept-frequency audio source is required. It detects if there is another telephone connected to the line, if there is a short or an open line. Appropriate component-value substitutions will yield variations in these parameters.

Among the essentials for circuit design and prototyping is the continuity tester, a simple device which provides an audible indication when a sufficiently low resistance is applied between its input probes. Телевидение Телефония Узлы цифровой электроники Фототехника Шпионская техника.

It detects if there is another telephone connected to the line, if there is a short or an open line. If you feel that somebody is tampering with your telephone line you might find this little circuit useful. Каталог программ Производители Каталог схем Datasheet catalog.



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