I'm quite sure they are 12 volts. The number sounds familiar. I'll have to
look at a couple of Motorola radio manuals to see if I can find them.
They may be from a Motorola Maxar, Mitrek or Micor. Not sure which. Take a
look at www.repeaterbuilder.com and see if you find anything there on the
Motorola section of that site.
Let me know of you find something.
73
Jim W7RY
On Sun, Jun 27, 2010 at 11:33 AM, Radio WC6W <wc6w_amps@yahoo.com> wrote:
> Anyone happen to know the specs on a M1156 Transistor from the late
> 1980's?
>
> Also goes by a Motorola service part number 48-84411L56.
>
> These are large SOE bipolar devices so they're probably VHF or UHF.
>
> The collector base breakdown is circa 60 volts so, I'm presuming that they
> are 28V parts.
>
> & the HFE seems fairly linear up to 10 amps Ic.
>
> A net search proved fruitless... and vegetableless.
>
> 73 & Good morning,
> Marv WC6W
>
> http://wc6w.50webs.com/
>
>
>
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>
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