PLJ-8LED (clone) frequency counter: useful - but has issues
10:11
PLJ-8LED (clone): fixing the other module
9:09
EP 166 - President Madison - SSB CB radio - Frequency counter upgrade and Power supply replacement.
15:29
Cheap Frequency Counter from eBay
14:11
8-Digit Chinese Frequency Counter and Case Part 1
23:30
153 - Pure analog goodness - Marconi TF2331 THD meter - but will it work?
15:34
machine à souder simple à partir de bougies d'allumage à la maison ! Extrêmement simple et utile
14:20
#123: Build a crystal oscillator from schematic thru prototype construction and testing - DIY
20:27