4 days once when I was off work for a week . <| sep |> You do not need high end caps to restore old radios like the Zenith . The circuit won ' t know the difference . There are a few good sites that sell the kind of caps you ' ll want for that set . I restore mainly 30 s 50 s radios and get most of my caps from either justradios . com or from this site a bit of advice When ordering electrolytics , axials are much easier to deal with . Also , I would recommend checking resistors too to make sure they ' re not out of tolerance . I generally replace any resistor that ' s more than 15 percent off spec they usually drift high . Finally , as for caps . Go with 630 V film caps . They ' re cheap , have a higher voltage rating than most of the caps you ' ll see in sets , and they ' re perfectly fine . If you come across 1000 v caps they ' re usually tied in with the output transformer , you can run two 630 v caps in series to get the equivalent of a 1 , 260 v cap . Edit Added more info to original replyIf you have any other questions , please ask . Recapping tube radios is a lot of fun and need not be intimidating .