HP82002A replacement capacitor

[Diego Diaz]

Hi Eric, all,

As previously noted, capacitance is not critical. Any 470uF with working voltage above 16v will fit the bill, and there are plenty of'em at the usual on-line components sites (Mouser, Digi-Key, etc.)

Choose a well known capacitors manufacturer (Panasonic, Nichicon, Elna...) and you'll be ok.

Some considerations regarding the 400uF/15v you've found:

- This is a non-normalized value, so chances are that these capacitors were either used or NOS. Any case I wouldn't recommend it. Electrolytic capacitors are renowned by "aging" even when not in use; and are more prone to leaking, loosing capacitance and increasing its ESR. (Neither of these are good things)

- Current manufacturing process has greatly improved since the HP-45 era. Any new capacitor will be smaller and more reliable than its '70s counterpart.

Good luck and keep safe. ;-)

Diego