Good Afternoon; I have this HEATHKIT MODEL IT-11 Capacitor Checker with manual and test leads available for sale for $40.00 . It covers 10pf-1000ufd,dc leakage test voltage 3-600 volts in 16 steps, and uses an eye-tube indicator. The tester seems to work,however readings are sometimes erratic and it may need cal. It looks like new! Al,W1TUK.