Hey Harold,
went to OSH (hardware store ) bought what looks like a wildly large hazmat helmet with a plexiglass faceguard and gloves. Warned my neighbors to stay inside in case it "blew":)(hey there are all those people whom got killed when their cell phone batteries blew and this thing's at least as big as that), but if they'd seen me desoldering in the hallway in that getup...:) Still have yet to replace the others but will this week, to preclude the stink and "digestion". Good move on your part finding it when you did too cause it sounds like it's still working, right?. Guess i was lucky but what a nightmare. At first though a rodent had crawled under something and died, then though it had crawled in the CMI and died, so in a way it was a relief:)
If anyone wants to replace them they only cost about 8 bucks plus shipping and there are no variables.If you look up the part you
may be confused as i was seeing part numbers that end in /p /s and they're all the same. It's a holdover from when they used to have a version with long pins and one with short ones. for about 7 years they've been only making one kind (shorter pins, but long enough for your fairlight) and shipping it under both part numbers, i guess to make it easy for people that are already ordering parts on a regular basis with the old part numbers. The lady i spoke with at tadiran in new york was very sure and added that if you did you find one with the long pins it would be 7 years old min, out of a 10 year life. So i got the new ones and they're fine.
Basic stuff on soldering/desoldering if anyone's going for it and unsure about that (but basically use a temperature controlled soldering iron station - $70-ish USD at radio shack but make sure you get the extended warranty because I've had 3 die- about 725
degrees is good, "tin up" the tip of the soldering iron by feeding 60/40 solder into it till it's shiny and wipe it periodically on a damp sponge, you don't want to leave the tip/heat on the solder pads for too long or they'll lift just long enough to feed a bit of solder into the hole as you pull away gently on that part of the batter from the other side then repeat around the 3 pins until it's out then feed solder into the empty holes on the pc board and right after hit it with the soldapullt and you should end up with 3 shiny new looking holes, ready to have a new battery pushed in an soldered into place,
Lots of solder and flux makes slowly pulling out pins one at a time and desoldering holes easier, and use a large "Soldapullt" instead of solder braid - always) to desolder, wear eye and or face protection, be careful, make sure the ventilation is good. Also break off pieces of solder around 2 feet long to
use because if you leave it on the coil as you use it it can suck all the flux out of the rest of the coil and mess the rest up if you want to use that later.
Sincerely
glenn
Harald Feldmann wrote:
Hi Glenn,
I think you got lucky in one way that you smelled the onset of bursting..
I figure you desoldered them already ? I have a damaged card that was
eaten away partially by that stuff. The battery disintegrated and came
loose from the contacts. I should upload a picture to scare y'all :-)
I did not install a new battery, I can type the date and time when I boot
up, no worries there. A small effort to save my Q133 from digestion.
Best regards,
Harald.
> entire apartment/fairlight nest was filled, as i slept and was awakened to
> nausea, with the most noxious, toxic and disgusting odor imaginable -
> something like rotten eggs only worse.
> and III). No leaking there luckily, but man it stank! It turns out when
> they go bad they can "breath" this gas out and seeing as how the Tadiran
> 1/6th D cell 3.6 volt TL 5135/P's (digikey.com and lots of places sell
> them) are all getting on in years (they're only supposed to last 10)
> how to solder/desolder and don't the the battery get too hot or anywhere
> near water or moisture and dispose of properly) so they don't have to go
> through the stinky-room effect:) Seriously, you can change it after but
> why not pre-emptively change it first?
>
> Best regards,
> glenn