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Melting solder on the chassis. What are my options?

Discussion in 'Amp Tech Center' started by Greg M, Aug 14, 2018.

  1. Greg M

    Greg M Tele-Holic

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    I've got an adjustable solder station to do the component soldering, but the can cap legs soldered to the chassis are giving me trouble. My iron just won't melt the stuff. So what are my options here? How high does the wattage need to be on an iron, and is there any other way of doing it? If it wasn't so close to other components, a torch would work. I really don't want to spend a lot of money on an iron that I may only use once, as I usually just work on pedals and guitar wiring. Any advice is appreciated.
     
  2. Outcaster

    Outcaster Tele-Holic

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  3. D'tar

    D'tar Friend of Leo's

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  4. JohnS

    JohnS Friend of Leo's

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    I use a 100 watt iron I got for doing stained glass. Works great.
     
  5. Greg M

    Greg M Tele-Holic

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    $25 for a 200w iron ain't bad. I'll probably have to go with that. I wish my electric charcoal starter would fit in there :)
     
  6. clintj

    clintj Friend of Leo's

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    85W and the fattest, chunkiest chisel tip the iron can take will get the job done. Those stained glass irons sure are nice for that work, though.
     
  7. Wally

    Wally Telefied Ad Free Member

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    I gave up buying new ‘big irons’ and find mine amp garage/estate sales......good old American products that just keep on working. $1-2 per iron....bargain time.
     
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  8. Bill Moore

    Bill Moore Tele-Afflicted Silver Supporter

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    Another thing to be aware of is to brush some flux on the area you plan to solder to. (Rosen is a mild acid that etches the metal for the solder to adhere to). Some folks also sand the area.
     
  9. PCollen

    PCollen Friend of Leo's Silver Supporter

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    Can you solder a wire to the can cap leg, attach a lug to the other end, drill a hole in the chassis and secure it with hardware ?
     
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  10. jtcnj

    jtcnj Tele-Holic

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    Last edited: Aug 14, 2018
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  11. Phrygian77

    Phrygian77 Friend of Leo's Gold Supporter

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  12. bblumentritt

    bblumentritt Tele-Afflicted Platinum Supporter

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    That's what I do.
     

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  13. Greg M

    Greg M Tele-Holic

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    Pretty sure I would screw that up pretty bad.
     
  14. PCollen

    PCollen Friend of Leo's Silver Supporter

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    It would allow you to form a star-ground point for those chassis-grounded cap can legs.
     
  15. pdmartin

    pdmartin Tele-Meister

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    On radios I’ve built I drilled several small holes in a circle around the area I wanted to solder to. The idea is to maintain the ground connection but reduce the heat sinking effect of the chassis mass.
     
  16. mgreene

    mgreene Tele-Afflicted

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  17. schmee

    schmee Doctor of Teleocity Silver Supporter

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    I have Weller 75 watt ones that work fine on the chassis. Also have a big 150 watt one, but it's not needed at all. Yard sales or second hand stores is where I got two 75 watt and one 150 watt. Nothing over $5. Also, look at pawn shops and second hand stores. Also a little bit of electronic soldering flux is great for large soldering or removing very old stuff.
    Like this: $32 new: https://www.frys.com/product/283468...gtnt2Lb9esyYRKJA2HbC4VHhyUorkgphoCe3QQAvD_BwE
     
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  18. 3-Chord-Genius

    3-Chord-Genius Poster Extraordinaire

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    You do NOT need a hotter iron, just a wider iron tip. I use a little 40W iron, but with a wide tip, and have no problem melting solder on the pot chassis.
     
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  19. jimgchord

    jimgchord Tele-Afflicted

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    Lug, bolt,nut
     
  20. jimgchord

    jimgchord Tele-Afflicted

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    I think he's referring to an amp chassis, not a pot
     
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