WARNING!
THIS CIRCUIT UNIT GENERATES PURE TONES WHICH CAN INJURE YOUR HEARING


Tone Generator, from the years 1994 and 2000


 Tone Generator, from the years 1994 and 2000, 2


 Tone Generator, from the years 1994 and 2000, 3


 Tone Generator, from the years 1994 and 2000, 4



Tone Generator, from the years 1994 and 2000, 5
T:  picture 1, middle

The set of frequency


T:  picture 1, right

The adjustment of working point of circuit


T:  picture 1, bottom

*)  Only one 'C' is in charge at the moment and what 'C' depends on frequency range.


T:  picture 2, middle

The set of amplitude. Placed on the board


T:  picture 2, right

The set of amplitude. Placed inside


T:  picture 3, right

Signal output


T:  picture 5

An information about the sine wave generator 2000:06
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