Hello,
???? I'm trying to repair several old 1817A sampling heads. They all show the same failure : the sampling diodes are fused. Since they are fitted in a very tiny structure, inserted into the wave coaxial guide, it is rather tricky to attempt replacing the diode by a modern SMD Ga As shottky device. The original are obviously point germanium diodes, though not written on the manual. Has anybody an idea where to get such sampling assemplies (which includes a resistor, a 2 pf capa and the diode in a very specific assembly), or an idea to fit a modern component in place of the old one ?
??? Thanks for replay !
??????? bernjc
JCB_SFR