component identification / equivalent

It looks like Motorola's mark. It has a in-house part number and is in a very old metal case.
 
Mission impossible ?

Hi Spectrum,

spectrum said:
so is there any chance to replace him ?
Click to expand...

Sure, draw the circuit with the (des)integrated circuit on a sheet
of paper and upload it. There can't be much more than a handful of
components connected to the unknown circuit.
And put the board on a scanner, that's always better than a fuzzy
picture from a camera.

on1aag.
 

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Actually, the camera will usually do better with 3-D images. But to make it a decent shot, YOU HAVE TO HAVE SOME LIGHT!!!

Dean
 
Here is His Picture, Lightened Up.
 

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Last edited:
chemelec said:
Here is His Picture, Lightened Up.
Click to expand...

Since it says "Q3" beside it, It is Probably a Transistor.
With 3 Leads from it.
But I don't recognize the Number.

I Found a 4-458 which is an NPN Transistor.
Possibly this is a PNP, but can't find a reference to it.
 
Last edited:
the componenet number Q3 indicates perhaps it is a transistor.

ps:
Chemelec-- it is perhaps coincidance- i did'nt see your second post


thanks
 
many thanks all,

yes, the Q mean transistor, sure, there are other int he board. I've measured it, It is a double NPN transisotr, so problem is solved now. Thanks again.

angelo
 
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