Several of the design projects I’ve done for TAPR were part of a larger concept I’ve been working on for…
I rediscovered a post from Corby Dawson with pinouts for the DB9 connector on the above OCXO and wanted to…
I didn’t even think of it when I was designing the TASS-R relay switch system, but the relay board can…
I did two hour measurement runs of three ’60s vintage Sulzer frequency standards against perhaps the best modern quartz standard…
Today TAPR announced availability of a project I’ve been working on for a while, a computer-controlled switch system called the…
Over the years I’ve acquired a whole bunch of Sulzer OCXOs. One is dead, several have oven temperature control problems,…
More twiddling of the OCXOs this afternoon. Austron 1250A:Â was tune 375, +3.9e9; now tune 340, +4.5e12 FTS 1050A: was…
I normally don’t adjust the frequency of the half dozen high quality quartz oscillators I have running in the lab. …
I’ve intermittently had a blog running at febo.com for years now. I used it mainly as a logbook of experiments,…