question about parts...(beginner question)

[9V]

(sorry for all the posts....)

if i would prevent the burning of the capacitors, and ic's...the things i would use would be pins for ic..and clips for capacitors..now, it's impossible to get a capacitor clips around here, it's not sold unfortunately...

anyways, i've seen inside an amp, where they use a molten plastic..(like on the juice boxes those greyish white plastic substance) on the legs of the capacitors, possible to prevent burning'em during the soldering process...

is this a good idea?

thx...[/quote]

[Paul Perry (Frostwave)]

That goop around cap bases is actually hot melt glue, to stop the cap from vibrating when equipment is shaken & fracturing the legs.
It is pretty near impossible to overheat a cap with a soldering iron, if the iron is hot enough to do the job quickly (make sure all surfaces to be soldered are shiny clean as well).
The way people overheat components, is by spending too long trying toi heat up the joint, or too long trying to solder to tarnished surfaces.

[zener]

It is pretty near impossible to overheat a cap with a soldering iron, if the iron is hot enough to do the job quickly (make sure all surfaces to be soldered are shiny clean as well).
The way people overheat components, is by spending too long trying toi heat up the joint, or too long trying to solder to tarnished surfaces.

Yeah, that's right . IMHO, soldering a component should not exceed five seconds from the time the three (the solder lead, iron tip and the component's leg) meet and up to the point where an ample amount of solder has hardened and takes the shape of a pointed one, like a hersheys kisses chocolate, even without the curves :wink: . In fact, I even think that 5 seconds is more than enough time to make a good solder joint. 3 or 2 seconds or even a second is enough.

BTW, caps and resistors are often hardy enough to widthstand heat from repeated soldering and desoldering (especially when you make mistakes :roll: ).

As always, socket transisitors and ICs. They are much, much less tolerant to solder heat.

[9V]

thanks so much..

however, i meant to say TRANSISTOR not cap...damn...
so the transistors have that hot melted glue (on a juice box type you know hehe..).. is that a good idea?

[zener]

As what I, many others and the DIY FAQ have said many times, SOCKET TRANSISTORS AND ICs. Regardless of whether the hot glue you're talking about is heat deterent or not, you should not consider soldering trannies and IC's directly to the pcb or perf. It will be for your own good (and the component's as well). If there will be a Ten Commandments for DIY stompboxes, I'm sure "socketing" will find it's way on the stone tablets :wink:.

See this:



That is a DIP 8-pin socket. You use that for 8-pin IC's like single and dual opamps. You can get two sockets for trannies out of that. Use a wire cutter or a plier and cut one portion on either side (bottom or top) being occupied by a leg. Do the same on the other side (that also has 4 legs). There would be three slots available for each socket you'll make. Now you got sockets for trannies.

[9V]

yeah i was extactly thinking about that improvisation method on creating transistor sockets... but i was afraid it might be doing a wrong step and also will rip the legs out of those transistors, :oops:

thank you zener