Random Garage Box Find: HP 545A Logic Probes (Vintage). Verified 2 HP545A logic probes are both working (although have only one complete probe tip - second is broken off). Being from the mid-70’s, not surprised that they use a small light bulb for the main logic indicator up at the tip. These are a little better than the newer Tandy logic probe kept in the prototyping box. The pair of HP545’s are headed to a local Chicagoland ham-fest next month. #TestEquipment #Electronics #LogicProbe

Jan Beta Makes A Simple 555 Based Logic Probe
#C64 #Commodore64 #555Timer #LogicProbe #ElectronicsDIY #CircuitBuilding #Instructables #ElectronicsTutorial #ILC555 #NE555 #DIYProjects #TestEquipment
https://theoasisbbs.com/jan-beta-makes-a-simple-555-based-logic-probe/?feed_id=1024&_unique_id=677bea5ce5c1e

Making a Simple 555 Based Logic Probe

https://makertube.net/w/cuUPCfYmzMeL8DkFuXgW2a

My new #soldering corner, almost finished setting it up. There will be another table right underneath the roof window on the right, where the final spot for the soldering station will be, so that the fumes get extracted better. But I had to give it a try, after so long no place for my hobby. A very old logic probe kit. I'll replace the LEDs with brighter ones, and the tip needs improvement. But I'm quite satisfied with my work and it was fun.
#electronics #hobby #solderingkit #logicprobe