How do I get rid of this mess of resistors

Oct 30, 2005 12 Replies

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That's a protoboard alright (oops -- wrong thread).

That's not too many resistors at all.

You want to get some 1/4 watt resistors, then bend and trim the leads so the resistors lay flat. Don't do flying terminations like that -- plug both ends of each resistor into the protoboard. You can move the chips apart to get more room if you need it. Do the same with your capacitors. You should also _always_ install bypass capacitors from power to ground, one cap per chip. Don't leave these out or your circuit will do strange things.

Tim Wescott Wescott Design Services http://www.wescottdesign.com

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For pull-down and pull-up resistors, you might look at single-in-line resistors arrays, which have one common pin (to be returned to 0V or

+3.3V or +5V or whatever), and anything from four to nine reisistors.

Farnell certainly stock a fair range of such parts. The pins are are in

2.54mm (0.1") centres, so they'd plug straight into your protoboard.

----------- Bill Sloman, Nijmegen

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I need all these resistors. They are voltage dividers, pullup and pulldown resistors and some also are used for setting parameters like frequency (IIRC).



On the one hand, I need them.



On the other hand, they are an unholy mess, looking bad, forming loops, etc etc.



I pulled these resistors from a 1969 piece of equipment.



i

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Not sure what you're asking. It's not as though you're carrying power into and out of the comparator. Surface mount on a custom PCB would sure clean things up nicely. Or a few dimes' worth of 1/8 W carbon film stuffed neatly into the protoboard grid (as it was meant to be used) would go a long ways toward looking sane. I think Radio Shack still sells resistor assortments, a few each of several commonly used values.

Farnell is in the UK. Try

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You'll have more versatility with a kit of discrete resistors, as

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You might score a resistor selection with little drawers and everything on ebay. I have an Ohmite "Little Devil" collection with thousands of resistors in it from 3.3 ohms to 22 megohms, got the lot for $10 at an auction. I restock it with lots of 20 of each value when often-used values get low. My next order to Digi-Key will include a kit of surfacemount resistors. Ya can't play with electronics without resistors!

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Thanks. I will try to get some assortment of tiny resistors and lay them flat. I really like flat lying connections, they are cleaner looking and probably invite less interference.

i

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Bill, do you have their item id or some such?

thanks

i

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Now pick a value !

Farnell's own search engine is quite good btw.

Graham

Thanks Don. I bought some sensible kit from ebay.

i

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Replace them with SIP resistor arrays.

I have many thousands of these in stock.

Many thanks, Don Lancaster voice phone: (928)428-4073 Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552 rss: http://www.tinaja.com/whtnu.xml email: don@tinaja.com Please visit my GURU\'s LAIR web site at http://www.tinaja.com

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istor-Mess/

I see no mess???

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BTW, go down to RadioShank and buy a 1/2W resistor assortment. Ya...1/4W resistors are too wimpy for anything over about 3V. I stick with 1/2W. Not to mention my interest in tube amps, but nevermind that...

Tim

-- Deep Fryer: a very philosophical monk. Website:

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check your email

i

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Thanks... I bought some assortment on ebay...

i

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