Tenma 72-505 Hand Held Audio Generator

Real nice generator for the hobby work I do. It might not be near the top of the line but it does OK for non critical stuff.

Great meter for test bench. Light, inexpensive, easy to use. Performs well. I'm a retired engineer, I use it for hobby work to test designs. It's ideal for testing pre-amps, filters, transformers, and amplifiers. Worrks well with an oscilloscope.

Pro'sA good valueAmazed at how little distortion this unit has for such an inexpensive unit. The THD is better than spec of 0.05% through the entire frequency range, from my testing.Frequency accuracy is better than 2% error.Not only that it is totally portable. About the size of a regular handheld calculator (6"x3"x3/4") and works on a 9 V battery.Square and sine wave outputs.Selectable -20dB attenuatorCon'sLeads are just ok but unit accepts standard banana leads.Could use a LED to let you know it is on.No sweep function.Does NOT have enough power to drive a small speaker (2 W) directly.You have to know how to multiply by 100.SummaryDecent unit for the cost. very acceptable accuracy and distortion for basic workbench and tool box use.Need something with a sweep function, and lab accuracy and THD you are going to pay over $1000 for that type of functionality and you can't carry that type of equipment in a tool bag.

Nice unit for the moneyB+ rating

Only way to tell if it works is to hook it up to a multi meter

Great for checking the surround sound system in my projection, home theater!

Very nice instrument. Easy to use.Useful for testing audio devices.

liked the size and easey operation