Prototyping Platforms and Methods

I am finding that it is harder and harder to come up with a concept or scheme where I can make some prototyping surfaces and have on hand to use for experimenting. My solderless breadboards are nice, but sometimes I wonder if stray capacitance, inductance and Lord only knows what else will be present when going that route. Attaching pads to a chunk of old PCB scrap is OK till you you get in a hurry and the glue has not set long enough. I have an islander drill bit and that is fun, but it is a one time use method. Then there is the virtual world of LTSpice, but you can spend way too much time in that area and forget to go back to the workbench to solder it and see if it really works!

If anyone out there has some tired and true ideas, I would love to hear about them. I really enjoy spending lots of time here in the shack and snuffing fumes...but I need to get a bit more organized in how I approach laying out circuits...sometimes I get to the point of now it is time to solder and spend more time trying to make that happen compared to all the other time spent getting to that point.

Comments

Tin/Can Lids

Next time you are opening a tin can, keep the lid!

Use a file to quickly make the edges safe!

Now you have an excellent and easily workable base for any prototype.Tin lids 2Tin lids 2

The metal is readily solderable, easy to drill or just punch, folds well and is (almost) free.  You can use sturdy scissors to cut it to any shape so it can be made into boxes or shields or screens or brackets.  Keep the whole tin and cut it open for an even bigger amount of material.  I use several lids soldered together for larger projects such as a valve superhet.

Tin Lids 1Tin Lids 1

 

 

 

 

 

 

 

 

 

I also build items such as power supplies (made from discarded "wall warts" - never ever throw them away!) into old tins and solder the lids back on.  It's fun to make a new label for that old tin of tomatoes with "12V DC 3A PSU" or whatever, in the original style...PSU in a tin.PSU in a tin.

I have also used discarded CDs but they tend to crack.

CD1CD1

73 cheers
Nick m0NjP / on4Nic

Copper foil tape

This is maybe more of a question than an answer :) But I've been thinking recently about the use of copper foil tape as a ground plane for ugly construction, instead of a copper-clad fiberglass PCB. I found that someone else had the same idea: http://www.wd5gnr.com/foil.htm. That example uses copper tape to form traces on cardboard, but I was thinking you could also tape a few long strips (soldering the seams for electrical connection) to form a ground plane as large or as small as you wanted, stuck to any surface you wanted (aluminum, plastic, wood, cardboard). It's copper, so it's solderable. You can easily cut out small pieces of tape and arrange them to make islands. It should be quick and easy.

I haven't tried this yet, but I'm planning to buy a roll of copper foil tape and play with it. What do you think?

Using Copper Foil Tape

I used the copper foil tape that had sticky on one side when I was working. Great stuff but rather pricey. Have you found a source for it that is reasonabley priced? I looked at the web site of wd5gnr, quite interesting. He says it is cheap...$5 for 36 yards. Where did he get that from???? I would like to give this a shot!

72's....Mikey, WB8ICN

P.S. What is your name and call sign????

72's/73's...Mikey, WB8ICN

www.qsl.net/wb8icn