Yep, that size "electrolytic" actually have liguid between the plates. Can't give you the actual chemical breakdown. (-; After time they just "dry out" normal. Shake the cap, bet you will hear either nothin or crap rollin indide! Kevin
--- On Sun, 6/20/10, Leroy A. M. Baptiste <[email protected]> wrote: From: Leroy A. M. Baptiste <[email protected]> Subject: RE: [Repeater-Builder] Astron RS50 Power Supply To: [email protected] Date: Sunday, June 20, 2010, 2:38 PM My guess is that it was a heat problem due to a faulty solder joint on the pass transistors socket. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of James Sent: Sunday, June 20, 2010 2:22 PM To: [email protected] Subject: [Repeater-Builder] Astron RS50 Power Supply Hi Guys, I am trying to download a schematic on this site for the RS50M Power Supply and keep getting a 404 Error on each attempt on all the supplies. Any ideas? Also our above mentioned power supply which operates our 2 Meter and 440 Repeaters and a low power link started humming yesterday. A trip to the tower showed that the two large wires coming from the Pass Transistors to the post on top of the regulator board and into the 1000 Uf Electrolytic got so hot it melted the insulation an inch back on the wires, burned an area the size of a quarter on the fiter side of the regulator board, turned the terminal black on the Cap. and cracked the plastic on the cap. It never blew the fuse and a check of the voltage showed it regulating under load and hardly a trace of AC on the 13 volt output. The MOV or eight amp AC fuse never blew. All the equipment hooked to the supply took off and worked well on another supply. Anyone have a guess as to what caused this obvious surge ontop of the cap? I am going to replace the Cap. and one resistor on the regular board which is discolored and hope for the best. Any advise appreciated. Thanks in advance JIM KA2AJH Wellsville, N.Y.
