A couple of months passed since I purchased two 10 MHz OCXO modules from eBay. And, to my shame, I didn’t even tried these. Yesterday I did a quick test and the devices are spot on. Both measured on my TTi TF930 3GHz frequency counter:
The OCXO needs apx 10 minutes for proper warm up in order to provide a very stable frequency. But the module is excellent. I intend to build a 10MHz reference.
For low frequency projects, a fast way to prototype is using a bare PCB and scratch some dividers that allow “manhattan” style prototyping. I am especially very fond of this prototyping technique and I believe that PCB design should be avoided in the early stages of prototyping. Jim Williams was an artist in such designs. […]
Today: I am cleaning my old and very dirty Panasonic corded phone. I kept this relic because, being powered from the provider, it does not need batteries and it very reliable. I also own an older rotary phone (kept for the very same reasons).
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