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Coherent 210 schematic posted
COHERENT 210 SCHEMATIC POSTED
the 210 power meter schematic is in the FTP.
Not reccomended for beginners, due to the damping and scale and offset adjustments. Plus the head is 1 mV per Watt, so your down in the noise, which requires careful adjustment and layout.
Buy a coherent powerpen or a lasersbee instead of building a 210. Shameless plug for Buy Something and Keep our Economy Going!
Steve
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