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#1
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Thanks for your quick reply.
After checking I saw that. With the trimmer calibration min-max in the emitter TR3 the output to the filter is not 0V DC (without oscillator), but output is 50mv-150mv. So i think we cannot have 0V DC because the diodes produce this increase signal Ofcourse (without oscillator, coil and antenna) if we touch the input, the output is >8V DC. This is correct? I repeat again i use only sensor stage without oscillator coil and antenna
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#2
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Quote:
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#3
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Hi Franko
If we have an oscillation in sensor stage output (8MHZ disconnect , coil and antenna are connect) at any value C13,C14 >50pf can we remove one capacitor C13 or C14 or all of them?
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#4
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Yes, or you can increase R10 / R12 (1.5K or 2.2K)
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#5
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I think I don't explain it correctly.
I keep as your last update the same values for R10 = 1K trimmer, R2 = 220R and "play" with capacitors values for 0V DC output. I saw with capacitors <50pf or without capacitors the output is stability and OV DC It is enough .. or it is necessary to use capacitors?
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#6
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Quote:
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#7
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Thank you very much
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