Hi Kevin, et al:
For what little it's probably worth, I've used my Hakko 808 numerous
times to clear away a LOT of solder from tube sockets, and many other
heavily-soldered devices with little difficulty.
Kevin speaks of "slots in the plastic separator in front of the
filter" which become clogged with solder... I have not seen such a
plastic separator in the Hakko and, other than the hole in the nozzle
sometimes clogging up as a result of burnt flux, I've had no problems
with the vacuum.
Hakko does offer a fairly wide range of tops for the 808 and I
recommend anyone buying the 808 invest in a couple of them... specifically:
A1394 This is a long (0.434"), slender (0.090") nozzle which will
allow you to get into places the fatter tips won't. It is
particularly handy when you are working on PC boards which
are pretty tightly packed AND which have some of their
components mounted on the bottom of the PC board with the
soldered pads in and among the tightly packed components on
the top side. Because it is long and slender, this is a
'delicate' nozzle, and probably NOT one you would want to
leave on the desoldering tool when you do not need to use
it.
A1396 This is a short/fat nozzle, similar to the nozzle provided
with the Hakko 808 when it is originally purchased.
However, this nozzle has a 0.091" inside diameter, so it
will suffice for removing most, if not all, of the
connectors used on most PC boards. Some of these connectors
use flat lug-type leads, instead of wire leads, which can
be particularly difficult to remove if you find you must
remove the connector itself. Of course, it also works well
on the larger diameter leads of big diodes, etc.
I just looked at several links to the Denon SC-7000 and while it
appears to be similar to the Hakko 808, I'm not certain they're
related... the Denon is certainly a LOT higher-priced (about $500 CN)... whew1
73,
Tom N0SS
At 11:47 PM 3/14/2006, Kevin B. G. Luxford wrote:
Hi guys,
The Hakko 808 looks very much to me like the Denon Instruments Co. Ltd.
SC-7000 desoldering tool. I wonder if there is some tie up between
Hakko and Denon? Anyway the point of this post is that I find the
SC-7000 excellent for desoldering stuff on PC boards. Continuous
vacuum, and controllable tip temperature are the two major features of
the SC-7000. Do be quick when using it, as lingering too long can
result in a copper pad being lifted off the board.
However, it is not so good on glowbug stuff where components are
soldered to tag strips or tube bases, and the volume of solder to be
removed is much greater than on the typical PC board. Under these
circumstances the vacuum tends to die because the slots in the plastic
separator in front of the filter get quickly clogged. Then the nozzle
fills with solder.
A desoldering tool that handles the glowbug stuff a bit better is the
very inexpensive GC Electronics "Solder Popper" (about USD37.00). I
also have one of these. It consists of a manual desoldering pump
mounted on a soldering iron with a hollow tip. Simple, inexpensive, and
it works well.
FWIW!
73
Kevin
VK3DAP / ZL2DAP
--
Kevin B. G. Luxford
[EMAIL PROTECTED]
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