04-10-2016, 10:22 PM
(04-10-2016, 11:39 AM)VintageTest Wrote: I remember the 70s - just, and true RMS meters were expensive then - Levell TM3B and HP3400A to name but two. Not like today, where just about every multimeter worth it's salt has an RMS measuring capability . . .
Just to clarify, the TM3B manual states that it is true RMS on the H.F. ranges. On the L.F. ranges it is mean reading and is calibrated for the RMS value of a sine wave. Still great meters though.
Al
Tuned for maximum smoke . 
