Posted in analog general electronics

Ultra portable pocket PSU

Although a bench PSU is useful, sometimes I prefer testing with something more portable. This ultra portable PSU has a…

Posted in analog audio

Long-tailed-pair oscillator

I needed a quick alarm tone generator for a piezo speaker, and with no 555 at hand, this turned out…

Posted in analog general electronics

121.5MHz is not a good frequency…

Got some random crystal frequencies (since I don’t care about the exact frequency) for the VNA transverter. Google search reveals…

Posted in analog radio

AD9954 clocking

Proposed implementation (using this oscillator: http://www.farnell.com/datasheets/14202.pdf )