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so, weird issue.

Posted: Fri Jul 05, 2013 11:33 pm
by htsamurai
haven't got the chance to try to figure it out since I had to go to dinner with the girlfirend
but check this out, built this cute little modified electra circuit on a breadboard.
so if I plug into the in and out I get nice, consistent, clear signal.
as soon as I plug the battery in it all dies.

so here are what I think are the possibilities
1. in and out is reversed somehow, plugging in backwards as it were.
2. battery is dead-ish, it powers an LED but maybe thats all the juice it's got

so until I can get back home to test it and mess with it wanna through some ideas at me?
:idk:

Re: so, weird issue.

Posted: Sat Jul 06, 2013 12:03 am
by Dr Satan
Make sure you have the transistor in the right way. Look up the datasheet to verify the pinout. Verify your resistor values, a wrong value could mis-bias the transistor out of its linear range and turn it off. Make sure everything is seated and connected properly(basically just wiggle everything). Post some pictures if you can't get it sorted out.

Re: so, weird issue.

Posted: Sat Jul 06, 2013 1:56 am
by htsamurai
hm, so it wasnt the power source, I wired up a 9v jack and ran that into a VL PP2+ so thats as consistent as it gets
transistor got flipped, still nothin

not really sure whats up, hm

Re: so, weird issue.

Posted: Sat Jul 06, 2013 5:28 am
by Scruffie
htsamurai wrote:haven't got the chance to try to figure it out since I had to go to dinner with the girlfirend
but check this out, built this cute little modified electra circuit on a breadboard.
so if I plug into the in and out I get nice, consistent, clear signal.
as soon as I plug the battery in it all dies.

so here are what I think are the possibilities
1. in and out is reversed somehow, plugging in backwards as it were.
2. battery is dead-ish, it powers an LED but maybe thats all the juice it's got

so until I can get back home to test it and mess with it wanna through some ideas at me?
:idk:


1. Possible, if you are plugging it in backwards :lol: (is it wired to your DC Jack as switching? Sure you put it to the right lugs?).

2. Doubtful

3. Something is shorting out, check for any wire frays touching.

Re: so, weird issue.

Posted: Sat Jul 06, 2013 10:53 am
by htsamurai
took it apart and tried to layout the basic electra instead
this guy
Image

same issue however, I narrowed it down to where it seems to be happening at the transistor
if I jump that joint where the 3.3m, (9v->4.7k), and Collector meet, and go instead into the Base where the (input -> .1uf) is going (essentially bypassing the transistor) I get clean signal again
if I just jump the input to that joint where they meet, signal
however as soon as I plug the (input -> .1uf) into the base
and the joint into the collector, I get nothing

Re: so, weird issue.

Posted: Thu Jul 11, 2013 2:35 pm
by morange
Try it with a fresh transistor. Transistors can be damaged if you hook them up the wrong way, and then not work when you do get the circuit connected right. And have a look at the pinout in the datasheet of the transistor you're using, like Dr Satan suggested.

You could post a picture of your breadboarded circuit, if all else fails.

Re: so, weird issue.

Posted: Thu Jul 11, 2013 11:32 pm
by htsamurai
it looks like it was just shitty germanium lol
it's all good thanks for checking up yo <3

Re: so, weird issue.

Posted: Fri Jul 12, 2013 2:50 pm
by morange
Oh, cool.