Autoguider Video card modifications

 The SDSU video card when fitted to an autoguider needs to be modified. The gain is changed to take into account the gain from the pre-amp in the head.

R29 and R81 should be fitted with 680R resistors instead of the standard 190R.

The load resistors R1 and R51 remain the standard 10K.

See board video board layout.











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