N Cook wrote:
>
> 9A5TD <ham9a5td@[EMAIL PROTECTED]
> wrote in message
> news:gd019u$baq$1@[EMAIL PROTECTED]
> > Is there any way to find D444C RAM, 2 -pcs.
> >
> > I need it to repair one old HP function generator.
> >
> > TNX
> >
> >
>
> Add uP or properly muP to the decice type if NEC
>
> some related info from one of my tips files below
>
> On transistors marked C???? read 2SC????,similarly
> A????-2SA????,B????-2SB????,D???? read as 2SD????.
> Also ICs marked A???? can mean LA???? (Sanyo) and
> B???? can be LB????,C???? can be LC????.
> Also C???? and PC???? can mean uPC???? (NEC,for u
> read mu) and D???? can mean uPD????.
> On Sony ICs of the 70s and 80s marked with 3 digit numbers and no
> leading letter such as 174A and 174-2 read as CX174A and CX174-2
> Motorola MC14??? usually you can drop the 1 and then read remainder as
> normal CMOS 4000 series number.
> Signal diodes with one wide band followed by 3 coloured bands ,
> one convention, eg
> wide red , black, blue,red may mean the last 3 digits of the
> type is 062, in this particular case 1N3062
That has nothing to do with 'Random Access Memory'.
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