FWIW - I repaired several SpectraTAC receiver drawer power supplies about a year or so ago, and those huge caps were still available from Motorola. But they WERE very expensive - if I remember correctly, I bought enough caps to repair two complete chassis power supplies (maybe 8 of them total) and the cost was well over $100.
"Hi-fi"??? C'mon - you're dating the entire group now! hehehehe Some of the younger whippersnappers here probably don't even know what a hi-fi is, or an "album" for that... OK, I think I'll sulk off to the "old folks home" now. (AKA: Casino) ;-p Mark - N9WYS -----Original Message----- From: [email protected] On Behalf Of Bob M. Those big aluminum electrolytic caps with screw terminals are getting extinct, and if you DO find one, it'll likely be expensive. You can get something quite smaller in size but the same or larger electrical value. Go with that. Stuff some stiff foam rubber or even some wood slats around the bottom so it will fit into the original clamp. That's what a lot of the hi-fi repair guys are doing now. A lot cheaper for something that has much better specs. The diodes are probably very similar to what an automobile alternator uses. Of course, finding the exact replacements could still be difficult. They're probably (minimally) 50V, 50A, but I'd look for something a bit bigger. The supply is good for 25A at 14V nominal. According to the schematic, the anodes (the ends with the arrows) are connected to the case and ground. Push-in diodes came both ways, mainly because many alternators use three of each inside, and they can only ground the case of three of them. You could also replace the diodes and bracket with a piece of aluminum heatsink material and use stud-mount diodes. Again, observe polarity otherwise you'll have to insulate the cases or the heatsink (probably not a good idea to have that sitting at +15V). Bob M. ======
