Elco testing small to use AVO meters. But to distinguish between the elco elco 20.000uF/50V 2200uF/50V size would be very difficult, perhaps this phenomenon that makes creative hands itch to make elco with two label values. Scheme tool as follows, do not smile once, indeed simple. The cost to make it too cheap, not up to $ 1. Elco tester circuit The workings of this tool based on the nature of the condenser, the condenser ability to store electrons / voltage. Since each condenser has the characteristic charging time and discharging time is different for each size and type dielektrika. Ideally, the larger size, the greater the time required for charging and discharging (charging and disposal charges). How to use : Make sure the position of the switch (SW1) on the discharging position (position A). Connect / elco pairs that will be tested, then empty the contents briefly elco by pressing SW2 (approximately 1 to 3 seconds). Position the switch in the charging position (position B), the LE...