This function generator is an HP3325A and it is several decades old, so some work was needed just to restore it to original working condition. The cooling fan and capacitors all needed to be ...

TK shows a Function Generator kitA function generator is an indispensable of electronics lab equipment, but unfortunately such a costly device is not within the easy reach of an average electronics ...

Once upon a time, if you wanted to generate some waveforms, you needed to buy an expensive off-the-shelf function generator or whip up a big pile of analog electronics. Not so today, when you can g… ...

The +20-V power supply must work in order for the −20 V, +17 V, and −17 V supplies to work. Replacing U615, the LM741 op amp, with one from the signal chain fixed the power supply.