N_Cook wrote in message
...
with all this written on the tiny flat face , immediately prior to the
meter
of a metal detector
7150A-1 A407C0042 , maybe G in the middle
unlikely voltage regulator Holtek HT7150A-1
Transistors marked Q and ICs , like this , marked IC on the overlay, about
2002.




If it walks like a duck and quacks like a duck, then....
Now it is repaired, this IC gives a 5V supply


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://diverse.4mg.com/index.htm