K6JCA
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Saturday, June 27, 2026
Repair Log: Ten-Tec Titan 425 Linear Amplifier
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A friend recently asked me to take a look at his Ten-Tec Titan 425 Amplifier that had failed while he was using it on the air. According to ...
Monday, June 22, 2026
Repair Log: HP 3335A
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This blogpost describes my efforts repairing three HP 3335A Synthesizer/Level Generators that have the following combined problems: Blank ...
Saturday, May 23, 2026
Replacement Power Switch for an HP Agilent 3101-2124 DPDT Push-Button Power Switch
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I hadn't used one of my HP 3335A generators for a while, and when I turned it on a few weeks ago, the power-switch wouldn't stay lat...
Friday, January 2, 2026
Tektronix DC 509: Simple Mod for Adding an External Reference Clock
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I recently needed a portable counter for some measurement work. Looking at my shelf of test gear, I found a Tektronix DC 509 Counter Modu...
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