Tagged: Small-Instruments

Archer Project Board Power Supply

This board provides 5 volt or 13.8 volt power. may be built up as a 5 v/13.8 v dual power supply. This (more…)

I wanted to design a logic probe as a tutorial, but there were many good ones in the web so i have (more…)

Here is a easy to read ‘Analog’ Millivoltmeter. Just like the Moving Coil Voltmeter, but does not have that resolution. This gives (more…)

Uncategorized

Question – i want a continuity tester circuit or get one. mail by RB Here are some pages that might help Simple (more…)

This indicates like LM3914 in dot-mode. It is a drawing i made made to troubleshoot a gadget, around two decades ago. Strangely (more…)

CD4046 is a PLL or phase lock loop, it mainly consists of a VCO and phase comparators. This is a component in (more…)