Stage 4 - Connectors and Capacitors
Having successfully fabricated a new Paxolin disc I drilled equidistant holes for three new connectors using my Dremel on its drill stand - other rotary tools are available.
Coloured dots were used to identify the +ve connections for the smoothing (YELLOW) and reservoir (RED) capacitors and and for the -ve common connections (GREEN) - these were stuck to the disc prior to drilling. Solder tags were attached to each side of the disc using pop rivets for the new internal and external connections: -
Just to be sure that everything was still ok I had a trial fit of the new disk with connectors on the can with the end ring: -
Although the original values were 16μF for the smoothing capacitor and 32μF for the reservoir capacitor I substituted 15μF 450V and 33μF 450V Rubycon Electrolytic Capacitor, Miniatures from Farnell - other suppliers are available.
My hot glue gun was then used to stick the two caps together and the -ve common leads were twisted together. Exposed leads were covered with heat shrink, appropriately coloured (RED YELLOW GREEN), to prevent any risk of shorting and to ensure the correct connections were made: -
The new electrolytic capacitors were then soldered to the connectors on the new Paxolin disc: -
