Pinpointer Circuit

[q@l@p]

Hello Sirs,

I am looking for the Circuit diagram of this Pin pointer PCB. Does anyone know or have the information of this Pinpointer? I am sorry for my English because English is my second language. Thank you.

[kt315]

welleman kit K7102

[q@l@p]

kt315, Thank you for your quick replying and the information. It is useful information for me. I would like to check on them, I need to translate them into Japanese......
The kit K7102, I have purchased it before, but it was a weak power to detect metals compared with the unit (in picture) that I attached.
Although it may be wrong to expect high sensitivity to pinpointer, the unit in the picture had quite high sensitivity. I again express my gratitude to you.

[Silver Dollar]

Well your pinpointer has 4 transistors and a U1 none of those others are the same in that respect.
Those other schematics are interesting though.

You should be able to draw the schematic fairly easily by just looking at the board...

[q@l@p]

Silver Dollar, Thank you for your suggestion. Yes, Although I would like to trace the circuit pattern, I feel that it is difficult to check the value of implemented electronic parts number. As you suggested me, I am going to trace the circuit pattern and make the schematic.　I do the thing that I can do.