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- From: whit@carson.u.washington.edu (John Whitmore)
- Subject: Re: Vector wire pencils
- Message-ID: <1992Dec21.233135.14930@u.washington.edu>
- Sender: news@u.washington.edu (USENET News System)
- Organization: University of Washington, Seattle
- References: <1992Dec21.152708.11873@kong.gsfc.nasa.gov>
- Date: Mon, 21 Dec 1992 23:31:35 GMT
- Lines: 39
-
- In article <1992Dec21.152708.11873@kong.gsfc.nasa.gov> stephens@kong.gsfc.nasa.gov (mark stephens) writes:
- >Are these useful? They are the "pencils" which wrap a wire around a post
- >and you then solder it. I'm trying to determine what system to use for
- >creating circuits for this new (to me) hobby. Etching seems to be a tad
- >much for (probably) one shot boards and wire wrapping might be overkill.
- >With the pencil, do you need special posts for inserting into a perf
- >board?
-
- Yes, the solder-wrap things are VERY useful. I've used them
- for years (actually, I made my own tools, after the Vector one broke
- or was lost). The wire requires a HOT soldering iron (800 degree
- tip on a WTCP-type regulated iron), to burn through the insulation,
- but otherwise it's as simple as any other soldering.
-
- No special tools needed; the leads of a resistor can be staked
- with a pair of needlenose pliers into a wrappable state. What
- IS useful is the little 'wiring loom' plastic strips, to keep the
- wiring neat (though with practice, one can route around
- corners so that the wire stays put). Always get the heavier of
- the two gauges of wire offered (it is easier to see, and holds
- a bend better). Bulk wire for this purpose is Beldsol magnet
- wire (you don't have to buy it from Vector), available from
- Belden distributors. (Belden type 8056)
-
- Direct wrapping to IC pins works well, as does wrapping to
- soldertail socket pins; wirewrap sockets are OK, but the extra pin
- length is not needed.
-
- An end-cutting scalpel and narrow-nose forceps are useful
- for wire routing and snipping. Since the wire needn't be cut to
- length and stripped, one can daisy-chain a large number of connections,
- solder them, and cut out the extra bits afterward (which is where
- the end-cutting scalpel is handy: use it like a chisel).
-
- John Whitmore
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