K6JCA
—•— —•••• •——— —•—• •—
Thursday, September 19, 2024
RF Directional Bridge: Operation versus Source and Detector Impedances
›
During recent correspondence with Owen Duffy, VK1OD, we discussed RF Directional Bridges and their design. One question that arose ...
Monday, August 12, 2024
Repair Log: Fluke 6060B (RF Output On/Off Switch)
›
I recently discovered my Fluke's 6060B's "RF Output On/Off" switch was not working: This switch is an elastomeric push-b...
Sunday, July 28, 2024
Repair Log: HP 5216A 7-Digit Counter
›
This blog post chronicles my efforts to repair an older HP 5216A Nixie tube counter. The HP 5216A is a 7-digit counter specified to count ...
HP 1820-0092 (Nixie Decoder/Driver) Replacement
›
Recently I decided to check out and, if necessary, repair several older HP units that used Nixie tubes for their numeric displays. The first...
Tuesday, November 28, 2023
Bringing an ARC-5 Receiver Back to Life, Part 2 (An AC Power Supply)
›
This post describes an AC power supply I designed and built for powering old military ARC-5 receivers that are either in unmodified conditio...
›
Home
View web version
