Testing a Preamp and Filter

Testing a 500 kHz low pass filter and a receive preamp. I show the importance of using a test setup with the proper impedance when testing filters.

[@loueckert4970]

Good job Paul, stay warm up there eh... 73 de KT1R Lou

[@n1bug]

Thanks Lou, all the best from the white frozen north country! 73

[@W1RMD]

Excellent demonstration! The effect of that display (multiplexing) is a pretty cool effect. Most displays are multiplexed, but I actually have a giant 24 hour clock made in the 80's that has discrete transistors for each segment pf the seven segment displays and decimals and has no multiplexing what so ever. Take care and 73!

[@n1bug]

The first time I noticed it in the camera I thought "Oh no, another piece of test equipment is about to fail!" :-) 73