I’m having a problem with a panel Mount screwless spring terminal and wiring it appropriately to a board. It is guitar related, it’s one of my infamous contraptions.
Anyway, on these panel Mount screwless terminals, they have two pins per slot.
I assumed that both pins were there to hold the dang terminal to the board and that both pins would be “hot”. But now I’m not so sure. I designed a pcb board where both pins have a trace from each pair to a respective via. I’m not getting any signal out from any of the slots.
Does anybody know which - the front or back pins on the terminal - are hot? Thanks!
Forget the potentiometer; if you hooked a nine volt battery up to the pins, and one pin was hot you’d have a circuit. You could measure the voltage on either of the two pins… whatever pin registers voltage, that would be the hot pin right? Sorry, this is just theory; don’t have any experience finding hot pins, but thought maybe this may help.
EDIT: If no voltage can be measured, then reverse the “ground” and “hot” wires from the 9volt battery on the pins?
Hope it works for you mam. Both pins being hot would not allow for a circuit, it seems to me at least. But, you know tons about guitar electronics… maybe you could test part of your circuit board with the battery wires; though, you could also just measure resistance… bc super low resistance means high conductivity! 😀
Although it's superficially similar, it's not a DIP switch right? So irrespective of whether one or both tags is connected to the conductor (wire) input socket, you just need to ring out between that spring contact (wire in) socket and each PCB tag in turn? If neither tag shows continuity to the input socket then file it under G for garbage. Given your many notable achievements and insight that eclipse my efforts Frets, I can't bring myself to believe that you were thinking along the lines of extracting switching functionality from that terminal block as with a DIP switch? I am referring to when you mentioned no voltage output which made me jump to the conclusions that I've expressed above. Forgive me if I've got this all wrong but I struggled to understand a part of your OP and I contented myself to watch how the thread went to try and understand better.
I'm with b4nj0, not really following the problem here. unreg suggested a 9V battery to test it, but that's what the battery in your multimeter does (i.e., applies a voltage across the probes). So, pin to pin, test for continuity, make a chart of what connects to where . . .am I missing something here?
I found these terminals for 32 cents a piece and am fearing they are junk. I’m going to do the beep test. I just wish I hadn’t designed the board surrounding this terminal. The whole idea is to allow guys to quickly switch out pickups on their Strats. The terminal would sit between the switch and pots on a pcb board. Using the screwless terminal, a guy could quickly switch their pickups out.
unreg suggested a 9V battery to test it, but that's what the battery in your multimeter does (i.e., applies a voltage across the probes). So, pin to pin, test for continuity, make a chart of what connects to where . . .am I missing something here?
Doh 😱 … yes continuity… 😵💫
Sry frets for forgetting that continuity tests a voltage received transmission. 😔 —- How do your wires appear so nice? You must have something to hold the wires while soldering. I have a RadioShack “Helping Hands with Illuminated Magnifier”, but it’s kind of bulky; though, your soldering is done away from a guitar cavity. And your guitars all have pic guards. Sigh, I don’t mean to change the subject.
How do your wires appear so nice? You must have something to hold the wires while soldering. I have a RadioShack “Helping Hands with Illuminated Magnifier”, but it’s kind of bulky; though, your soldering is done away from a guitar cavity. And your guitars all have pic guards
The "third hand" thing is useful. I don't know what frets does, but I make a cardboard template of the cavity, make holes to mount the pots/switches temporarily, then solder over the cardboard. After the soldering is done, pull the completed harness out of the cardboard and mount it into the guitar. The only soldering done in the cavity is the jack connection and bridge ground.
But my wiring still doesn't look as nice as frets does!
Ooo, that’s one of my messier ones, but I appreciate the compliments.
I too have a big 3rd hands contraption but I only use it for the illuminated magnifying glass.
I use copper alligator clips like these.
These are great because you can drop the pot right in the middle (shaft down), clip the pot on both sides and solder away. The copper acts as a heatsink too. You want the battery charger clips. You can find them in the auto section at Walmart.
I find these work better than the 3rd hands doohickeys.
The copper alligator clips look very useable AND they take away heat too! That’s a great idea! 👍😀 But to use those I’d have to create an entire harness outside of the cavity like you and newey do. Thank you for sharing your wisdom.