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Azur Electronics


May 2020

The HP 86222B RF Plug-In has a problem with the Power Level control as it continuously rotates.

Front Panel stripped down
The Front Panel was fairly strightforward to strip down by disconnecting the internal rigid coax and other internal connections.  All the front locking rings for the BNC's and N-type connectors were really tight.

R1A & R1B is a dual variable resistor, both 1K0, that is listed as HP part number 2100-3490. I couldn't find a replacement and fortunately both resistors are still working ok. If I eventually find a replacement it will be changed. In the meantime operate it with care!