On Sunday, April 26, 2015 at 6:13:29 PM UTC+10, wrote:
Hobbyists use ESR meters more than most folk, but real technicians use other, faster, more reliable means.


** Wot utter ********.

Not so fast. I can do rthings with a scope and a square wave that'll turn your grind.


** Obviously you have never used the Bob Parker ESR meter or similar.

Readings are done in circuit, shown in ohms, instant and quite accurate. The display auto-ranges to cover 10 milliohms to 99 ohms.

You can measure low value resistors too and check many kinds of batteries - particularly lithium coin memory cells for condition.

Leaves the scope and square wave method for dead.


.... Phil