Hi, having seen so many posts of re-capping of vintage amps, building new circuits etc, I would like to pose this question to all of you "HOW DO YOU TEST A CAPACITOR ?". Now we can always do so with a capacitance meter, but the problem arises when the ESR factor creeps in. For a casual DIY'er like me I have access to a digital VOM meter and also a LCR meter but is a high price gadget like ERS meter justified for me ??.
Many a times we hear "The caps all look okay with capacitance within limits but with HIGH ESR, so it has to be replaced". now how do we take a decision to re-cap a high-end vintage amp with only the defective(physically looking OK) capacitors replaced. Or how to pull out a cap from our parts bin and confirm it id "OK" and use in a circuit like say Myref or DCB1 or a Pass B1.
Regards,
Lifewater
Many a times we hear "The caps all look okay with capacitance within limits but with HIGH ESR, so it has to be replaced". now how do we take a decision to re-cap a high-end vintage amp with only the defective(physically looking OK) capacitors replaced. Or how to pull out a cap from our parts bin and confirm it id "OK" and use in a circuit like say Myref or DCB1 or a Pass B1.
Regards,
Lifewater