Home |
Search |
Today's Posts |
#1
|
|||
|
|||
Cleaning out a can cap?
Season's greetings RATs!
I am designing a replacement power supply for a couple of Dyna Mk IVs. Is it feasible to clean out the contents of the original can cap? Or will I end up with a gooey toxic mess? I was thinking I could clean out the contents of the original can cap and possibly insert 2 electrolytics. This would leave me more room to work with under the chassis for the rest of the power supply. Tia, -- Rev |
#2
|
|||
|
|||
Hi:
Yes, you can clean out the contents of an old electrolytic and re-stuff with new mfg caps; I've done it myself. Antique radio restorers do it all the time. The contents of old caps aren't particularly toxic but you don't want to eat the stuff either. IIRC most electrolytics consist of two Al foil electrodes separated by absorbent paper saturated with a borax/water solution or something like that. OTOH, cleaning out one of these will be messy so set up your workspace accordingly. One aspect of re-stuffing I've never seen addressed to my satisfaction is the fact that cooling may be compromised being that the new caps are somewhat insulated within the old can. At the risk of overkill, I increase my comfort level by using 105C rated caps. -- Steve |
#3
|
|||
|
|||
In message yTkGb.37754$m83.4747@fed1read01, Revolvr
writes Season's greetings RATs! I am designing a replacement power supply for a couple of Dyna Mk IVs. Is it feasible to clean out the contents of the original can cap? Or will I end up with a gooey toxic mess? I was thinking I could clean out the contents of the original can cap and possibly insert 2 electrolytics. This would leave me more room to work with under the chassis for the rest of the power supply. Tia, -- Rev Yes, just carefully bend back the aluminium rim sealing up the old cap and take the tag plate out. With luck you might be able to pull the internals out connected to the tags. The liquid inside isn't too harmful, but don't get it in cuts on your hands. I put new 105C parts in to replace, and then fill it up with molten candle wax, before re-sealing the end cap. -- Chris Morriss |
#4
|
|||
|
|||
The last one I cleaned out had the guts held inside the can with a bit of
tar. I applied a bit of hot air with the heat gun and the guts slid out easily. I cut the can just above the base, to preserve the base and connecton lugs, then put it back together with a thin aluminum sleeve inside the cut, expoxied, and the joint covered with sme neat 3m adhesive aluminum tape. --Chuck "Revolvr" wrote in message news:yTkGb.37754$m83.4747@fed1read01... Season's greetings RATs! I am designing a replacement power supply for a couple of Dyna Mk IVs. Is it feasible to clean out the contents of the original can cap? Or will I end up with a gooey toxic mess? I was thinking I could clean out the contents of the original can cap and possibly insert 2 electrolytics. This would leave me more room to work with under the chassis for the rest of the power supply. Tia, -- Rev |
Reply |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
LAST DAY :VPI HW-17 Professional Record Vacuum Cleaning Machine | Marketplace | |||
eBay: VPI HW-17 Professional Record Cleaning Machine | Pro Audio | |||
eBay: VPI HW-17 Professional Record Cleaning Machin | Marketplace | |||
FA: VPI HW-17 Professional Record Vacuum Cleaning Machine | Marketplace | |||
questions r.e. cleaning records | Pro Audio |