Hi all, i have a cupcake and a afterlife boards but i made a mistake while ordeing the diodes Brian says the recommended are germanium 1n34A, and i orded by mistake some japanease white glass diodes, im not sure if the will work for the compression
It's all going to depend on the forward voltages of your diodes. If they're down in that typical Ge diode range (0.2-0.3V) they'll probably be usable in those circuits.
i think that on small bear are marked as .23 to .245 V FW voltage, it says on the dreciption 1n34A workalike, not so sure what i was thinking when i bought that day, since i end up with some 9mm alphas that not remenber what i was planning to build with them
They'll be fine. In fact, they'll work better than 1N34A.
Quote from: midwayfair on December 15, 2014, 11:08:27 PM
They'll be fine. In fact, they'll work better than 1N34A.
have you tried them?? they look pretty cool in fact but i wanted to be sure before using them, i will start populating today
You could always socket that spot on the PCB just in case. Or leave extra lead to be safe, just in case you need to desolder them later.
Keen's Laws #1 & #2:
"1. Use what you can get, subject to some rough and ready rules. See Resistors, Capacitors, Inductors, Transistors and Opamps below. If you have a circuit that needs a specific NPN transistor, and all you can find is a 2N3904, try it. Chances are that if it's not a high power application, it will work mostly. If you need a 3.3K resistor and don't have any of those, notice that 3.3K is about 1/3 of 10K and make one up by paralleling three 10K's that you do have, or a 2.2K and a 1.1K in series. There are places where this kind of approach will not work, but it does work surprisingly often.
"2. Get it running now, and put the perfect parts in later. In most cases, there will only be one magic, special part you can't find, and then it's really a matter of not being able to find the part *right now*. Build assuming that you will replace the replacement part with the exact thing when you can. If you still need to. "
Quote from: mremic01 on December 15, 2014, 11:49:54 PM
You could always socket that spot on the PCB just in case. Or leave extra lead to be safe, just in case you need to desolder them later.
Keen's Laws #1 & #2:
"1. Use what you can get, subject to some rough and ready rules. See Resistors, Capacitors, Inductors, Transistors and Opamps below. If you have a circuit that needs a specific NPN transistor, and all you can find is a 2N3904, try it. Chances are that if it's not a high power application, it will work mostly. If you need a 3.3K resistor and don't have any of those, notice that 3.3K is about 1/3 of 10K and make one up by paralleling three 10K's that you do have, or a 2.2K and a 1.1K in series. There are places where this kind of approach will not work, but it does work surprisingly often.
"2. Get it running now, and put the perfect parts in later. In most cases, there will only be one magic, special part you can't find, and then it's really a matter of not being able to find the part *right now*. Build assuming that you will replace the replacement part with the exact thing when you can. If you still need to. "
thnaks for the words, i have always do that, but i havent looked well at the compressor schematics, and probably not so so sure about the clipping in this case, since its not distorting the signal but cutting spikes( cant find other words) so i was like sounsure but i will give it a try, meybe i can find a better taste of it
Quote from: copachino on December 15, 2014, 11:39:58 PM
Quote from: midwayfair on December 15, 2014, 11:08:27 PM
They'll be fine. In fact, they'll work better than 1N34A.
have you tried them?? they look pretty cool in fact but i wanted to be sure before using them, i will start populating today
There's nothing to try, but I've probably used them in something since I have some. Their Fv is lower than a 1N34A, and that's the only thing that matters. They're rectifiers. You'd get even better results with a Schottky diode since it wouldn't be temperature sensitive.