UPDATE: The scope is 100% repair, unfortunately I didn’t update this blog while I was repairing the scope. So I’m going to look back at photos and videos I took and try to sum up my thoughts on what I did. So this is...
Read MoreThis is the Tektronix 2445A on my workbench, underside (belly) shown. This is the A1 board containing the attenuators for Ch1 and Ch2, and preamps for all 4 channels. I’m doing voltage and voltage ripple measurements, as...
Read MoreI have a 4-channel Tektronix 2445A I bought sometime around 2008(?) Basically, this scope is almost a 30-year old equipment, circa 1987 based on my research. I like this 2400 series scope compared to the Tek 2000 series it...
Read More
So here’s the scenario… you have a power transformer with a voltage output of 25V +...
Read More
I plan on building a solid state power amp, but don’t know which one yet. In the meantime, I...
Read More