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Hi,
I'm started new, MAGNUM based project, but if somebody is familiar with following changes I thought, pls., share it.
1. Replacement of 4007 based demodulator with 4053 triple multiplexor/demultiplexor.
2. Replacement of CA3130 comparator with double LM393 comparator.
3. Divide circuit into two chanels - GND and DISK (no more constantly switching GEB/DISK).
4. Use of third (unused) multiplexor for controling the sound - low freq. for ferous and high freq. for nonferous objects, or disabling the sound if ferous object is detected.
Thanks in advance,
Eugenij
I'm started new, MAGNUM based project, but if somebody is familiar with following changes I thought, pls., share it.
1. Replacement of 4007 based demodulator with 4053 triple multiplexor/demultiplexor.
2. Replacement of CA3130 comparator with double LM393 comparator.
3. Divide circuit into two chanels - GND and DISK (no more constantly switching GEB/DISK).
4. Use of third (unused) multiplexor for controling the sound - low freq. for ferous and high freq. for nonferous objects, or disabling the sound if ferous object is detected.
Thanks in advance,
Eugenij