The previous cheap function generator had been an ATmega328 with a resistor ladder DAC, ... So my first order of business was to hook up the ‘scope and see how it handles delivering a sine wave.

This function generator is an HP3325A and it is several decades old, ... If you’d prefer an option without a company backing it, though, we have you covered there too.

Features of the DIY function generator Arduino project include: – Fully digital control : No need for passive analog components, which simplifies the design and enhances reliability.

A dead Tek FG503 function generator plug-in inspires a teardown. The culprit? A bad op amp in the power supply. A former coworker friend sent me a Tektronix 3-slot mainframe and several plug-in ...