[Elecraft] Hakko 808 wanted

Tom Hammond n0ss at earthlink.net
Fri Aug 27 11:39:35 EDT 2004


At 10:24 PM 8/26/04, Brian Mury wrote:

Tom Hammond wrote:
> > It's also great for tinning toroidal inductor leads... a nice side benefit.
>
>Hi Tom, care to describe how you use it in that fashion? I found
>stripping and tinning the toroid leads to be the only part of building
>my K2 that I didn't enjoy (I used the solder blob method). I've got the
>KSSB and KPA100 sitting here waiting to be built, and I'm tempted by the
>sale on the Hakko 808 - help me justify it! :-)

Why certainly.  It's disgustingly easy...

I don't recall who first posted it here (maybe Don Brown), but here goes:

1) Wind the toroidal inductor and space the turns out
    as required. Cut the leads to about 3/4" long (max.).

2) Take each of the toroidal inductor leads and bend
    them STRAIGHT OUT from the body of the core.. like
    wings. This will allow you to tin the lead almost
    right up to the body of the core, which ensures that
    when you install the inductor, you don't pull any
    of the enameled lead down into the plated-thru hole,
    possibly creating a poorly soldered connection.

3) With the Hakko 808 desoldering tool hot and ready to
    play, melt some solder into the nozzle and then slowly
    (1-2 seconds) insert the inductor lead all the way up
    to the turns on the inductor.

    In about 1-2 seconds (max.) the enamel will begin to
    bubble up and smoke.

4) HOLD the trigger (sucking the solder out of the nozzle)
    and slowly remove the inductor lead. This should leave
    you with a perfectly tinned inductor lead.

If there's any burnt enamel remaining on the wire, and this is NOT unusual, 
it can usually be broken off the wire with a thumbnail as the wire is 
pulled between the thumb and forefinger.

When the leads are again folded back against the body of the core, the 
tinned portion of each wire should extend to (or just slightly past) the 
outer edge of the core itself.

Like said, nuthin' to it!   IF you have a Hakko 808.... <G>

73,

Tom  N0SS



More information about the Elecraft mailing list