Anyone recognise these (black with yellow dot)
I salvaged this board from a 60's camera flash. I know that the clear glass ones are germanium.
I assume these are diodes because they have orienting dots.... any ideas?
(http://www.mrdwab.com/john/Diode-type.jpg)
I don't know anything about that diodes, but your wood works are really cool. Do you make guitars too?
Looks like some germanium diodes i see.
Bye.
I would guess silicon. I have some which are the same ones as in a Shin-ei octave pedal which look roughly similar (big, molded? package as opposed to say a 1N4007). (old ones, that is)
Hippo
I just make amps and pedals, I've refinished some guitars but not made them from scratch. I have a few wooden pedals left for sale, let me know if you are interested in anything you see.
I was hoping these were something other than silicon diodes but I guess that makes sense, they do look like silicon... Well at least I got a couple Siemens germanium diodes off the board...
Just measure the threshold voltage on 'em and put 'em with the 'like others' or use them.
Yeh, I'd do that too. I have a multimeter which measures diode forward bias voltage drop, so it's easy to tell if it's ge or si. Do you have a meter which can do that? It's worth getting. They are cheap these days.
Yes, My meter has a diode test. I was just thrown of by the shape having mostly seen round diodes even in 60's circuits... Silly germans...