[Elecraft] 707 vs 808

[Tom Hammond]

Charles:

>Looks like replacement parts for the 707 are about to take a quantum leap 
>in "unobtainability", according to
>   http://www.hakko.com/itnl/images/PDF/discontinued_en.pdf
>
>"Over 5 years have passed since Hakko 150B, 150C, 151, 481, 483, 700, 707, 
>800, 801, 926 & 927 were discontinued, and it's getting difficult to keep 
>supplying replacement parts for them.
>
>"Therefore, we have decided to stop supplying the items in list <A> as at 
>August 31, 2003.  Also please be noted in advance that your requiring 
>item(s) may not be available when ordering as we will finish the supply 
>upon running out of our stock.
>
>"While the items in the list <B> will be available until the end of August 
>2006.
>
>"Just for your information, all the items on the list <C> are no longer 
>available.
>
>List <B> includes diaphragms, o-rings, filters and tips, so that looks 
>like FB for a few more years.  List <C> didn't seem to include anything 
>for the 707.  List <A> includes pump heads, crank arms, check valves, 
>balance weights, and cleaning wrench.

ORDER QUICK!!!  They may still have what you REALLY need. IF you know what 
you REALLY need... <G>

>Just out of curiosity, what tips are you 808 user's using?  I have a 0.8mm 
>tip.  (which incidentally seems to be pretty clogged up -- may well be my 
>problem!)

You may well be able to fine a 'wire gauge' high carbon steel drill bit 
which will allow you to drill out the crud and to return the tip to more 
normal use.

0.8mm = 0.031". You'd probably want to try to find a #70 (0.028") or #69 
(0.0292") wire gauge drill bit. And you'll want to turn it SLOWLY. If you 
break it off in the tip, you're screwed pal! Been there, done that!

>I can't imagine wanting a larger tip for fine PCB work (1.0, 1.3 and 1.6 
>mm are listed for the 707) but there is a 0.8mm "slim nozzle" 
>listed.  Sounds like that might work for reaching in between things on the 
>component side...

The Hakko 808 kit comes with a 1.0 mm tip. I bought a couple additional 
tips to make things a bit easier in certain circumstances:

   Tip A1394  A long (0.43"), slender 1.0 mm tip which allows me
              to stick the tip down in between close-together
              components and not burn whatever's next to the
              component I'm working on.

   Tip A1007  A 1.6 mm ID tip which will slip down around some
              larger diameter leads (and some lugs) to allow me
              to remove more than just small components.

If you can get the slim nozzle, it'll probably be a worthwhile purchase. 
It's a bit 'delicate' (if it's like the 1.0 mm slim nozzle I have), but 
it'll work wonders when you're in the midst of a tightly populated PC 
board. DO NOT use it for general purpose desoldering though... the tip is 
long and delicate enough that an errant bump can either bend or break it 
off. Use it, then replace it with the notmal tip.

If you go to the Hakko USA web site:

      http://www.hakkousa.com/

On the lefthand column, under Press Center, you can download their general 
products catalog.

Again, on the Home page, left column, under Products, you can download 
their Tips and Nozzles catalog as well.

Good luck,

Tom Hammond    N0SS