Electronics > Beginners

Wirewrap parts

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coldfiremc:
guys, this vectorbords are brand new, in their bags.

also noted that vector sells this insertion tool for posts. is really needed?

https://www.vectorelect.com/insertion-tools-hand.html

KL27x:
That one looks like it's used to insert the bifurcated terminals. I'm not sure what those are good for. I think they are for soldering wires to? Seems like needle nose pliers would work fine for that, since it doesn't matter if they get scratched up.

I made a tool that might work for inserting the regular posts, but I dunno. I've never used those things.

What I made is for taking a normal pin header (in case you can't find your long headers) and pushing the pins in so they are centered in the plastic spacer. This give enough length on the bottom to stick and stay in a breadboard, but enough length on top for holding a couple connections. It's very simple, just a piece of 3mm wire inside a 0.062" brass tube and put in a handle.

0.062" brass tube slips over the 0.025" square pins just right. 3mm steel wire inside the tube presses on the tip of the pin. The length of the hollow brass tube indexes against the plastic spacer to get the length just right. This is glued into a handle (eyeglass screwdriver with the bit pulled out).

In practice, I would break off a piece of header, stick it in the breadboard (the pins engage but just barely past the tapered/sharp point, so if the header tips it will fall out), then use this tool to stake every 4th or 5th pin deeper, so the header doesn't move around and fall out under use.

jfiresto:

--- Quote from: coldfiremc on October 22, 2019, 06:19:00 pm ---... noted that vector sells this insertion tool for posts. is really needed?....
--- End quote ---

It is pleasant to have if you need to insert more than a few terminals. I think I still have my A13 from the early 1980s. [Ha, I still do. The rubber head is now hard, but has not cracked.]

ebastler:

--- Quote from: coldfiremc on October 21, 2019, 05:33:17 pm ---This is a really good supplier. However I only see sockets (that trash has sockets too, very fine trash), I dont know if posts are needed too for discrete passive components. I saw forked sockets like this

Are sockets like this adequate to hold 2pin passive components?

--- End quote ---

Yes, these are meant for mounting discrete components. But the one you show is not for wire wrapping, by the looks of it. Neither does the product page on the site jfiresto gave mention wire wrapping for this part: https://www.peconnectors.com/component-carriers/hws2807/. I think this is meant to go into a regular IC socket, if e.g. you want to swap a set of resistors and/or capacitors quickly.

edavid:

--- Quote from: ebastler on October 22, 2019, 06:59:46 pm ---
--- Quote from: coldfiremc on October 21, 2019, 05:33:17 pm ---This is a really good supplier. However I only see sockets (that trash has sockets too, very fine trash), I dont know if posts are needed too for discrete passive components. I saw forked sockets like this

Are sockets like this adequate to hold 2pin passive components?

--- End quote ---

Yes, these are meant for mounting discrete components. But the one you show is not for wire wrapping, by the looks of it. Neither does the product page on the site jfiresto gave mention wire wrapping for this part: https://www.peconnectors.com/component-carriers/hws2807/. I think this is meant to go into a regular IC socket, if e.g. you want to swap a set of resistors and/or capacitors quickly.

--- End quote ---

The headers shown are inserted into regular wire-wrap DIP sockets.  This was very common back in the heyday of wire-wrap.   I never really liked them since the component leads + wrap wires ended up being fairly long, but they were OK for LED current limiting resistors and things like that.

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