spring clips

[phillyhudson]

my pre amp board looks like a dogs dinner with all the changes I,ve made - i remember seeing this photo of a board with spring clips in place to try out different value components without messing up soldering and thought what a great idea - anybody know what are they called and where you get them from ?
sorry can't remember the original thread the photo came from.
thanks in advance
phil

[odourboy]

That's mdrobert's amp. I've sent him a note to post on this thread any info. he has on what they're called or where they came from.

[phillyhudson]

thanks geezer much appreciated - hope he doesnt mind me using pictures of his [pristine looking ] amp

[mdroberts1243]

thanks geezer much appreciated - hope he doesnt mind me using pictures of his [pristine looking ] amp

I think those were made by Vero and available 30 years ago or so...

They are silver plated and made to plug into the old style vero perfboard (large holes like the Trainwreck boards). I found a handful of them in my parts box and cleaned them up with silverware dip for use in the prototype build of the Bluesmaster 100W. With a slight pinch of the ends they can slide tightly into a standard eyelet and are great to work with if you want to try out seven or more combinations of plate & cathode resistors like I did in the BM!

I think they'd be harder to find then the original veroboard and the trainwreck flea clips nowadays!

[phillyhudson]

ah well - back to the dogs dinner - thanks for looking anyway.
phil

[Wayne]

If you're using eyelet board-

Sometimes I'll put a tenative component value in unsoldered eyelets and jam a round wooden toothpick in beside it to make connection. If it ain't the resistor/cap/whatever that has the magic, you just pull the wooden pegs, change the component, and repeat.

I don't remember where I read that - maybe even somewhere on this board.

W

[Structo]

Or you can leave the leads long on the component and just tack solder it in place for a test.

[Bob-I]

I college I worked part time for a company who did QA on various connectors. You'd amazed at the resistance and capacitance you can get from these contacts temporally put in place.

The spring clips look pretty cool but expect deterioriation over time. The wood in the eyelet might be ok, tack solder is a pretty poor method IMHO as we had tons of bad readings from these types of joints.

For awhile I used small aligator clips soldered upright into eyelet of over the turrett. Again, not the best but nice for testing various values. I used them on one of my amps to decide hiog plates vs. low plates. The resistance I measured on the connector was under 10 ohms so it was not a factor.

[heisthl]

Or you could just use turrets instead of eyelets at the "tweak" points.