What can be made of transistors KT3102
ULF amplifier transistor CT 3102 for headphones
At such a low noise transistor as CT 3102 can be anything, but usually it is used in cases where the input level is low and need to strengthen. Internal coef. the transfer of current is quite high, and the signal noise is just perfect. So, what is important to know that such a transistor is mainly used in the audio channel of the radio equipment. Can bugs do, amplifiers, etc.
Here for example is an old well-known simple amplifier circuit for household appliances, you can scorodite mono amp and listen to anything.
See scheme ULF amplifier transistor CT 3102 for - for simple headphones. Option MONO and Could print tie, but I think is not difficult to draw a regular pry bar, little details and all the simple. It will really the low-power amplifier, but the signal noise will be low. This shawl is a low-power VLF amplifier transistor CT 3102. Although if you want you can replace this CT 3102 with "oak" CT 315 this is not the best, it is like this do not kill the transistor, and that his stick everywhere where you are not lazy. As you can see this shemka just for school.
I have this schema for common small receiver for fishing done as a module after the detection at the output. Worked super scheme, though it was made on an ordinary piece of pressboard and filled with epoxy glue:)) the scheme is powered by cron batteries - 9 in
these are needed parts
1) transistor CT 3102 or CT 315
2) is a resistor 47 K R2 100 K
3) capacitor 1 MF 16 V
If you wish, you and the Adjuster screw. The handkerchief is so small that it is possible to capsule earphone to fit. You can even sort of system for slightly deaf to create, but is already experimenting:)
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