"Gary Morton" wrote in message
. uk...

These are useful pointers.
I am in the same situation as the original poster.
I have been given a bunch of RF power transistors (316-01 and 244-04 type
packages). I have been unable to identify them. The giver tried to find
the information where he works (they were being thrown away) but he can't
find any information.

Transistor 1 markings: C / M2519 / 185 / 9014 / RR15
the bag is labelled RF 10W UHF

Transistor 2 markings: C / 185 / 4340P3 / 8817 / MALAYSIA
the bag is labelled RF 12W VHF

Transistor 3 markings: C / (Motorola Wing) / 8133P1 / 8919 / MALAYSIA
the bag is labelled RF PA 28W VHF

Transistor 4 markings: C / 4340P1 / 8824 M52 / (logo)
the bag is labelled RF 4W VHF
these have logos of ST or Thompson CSF

The second from last line four digit number is the date code. In some
cases there are more than one transistor and this line does vary.

I Have tried adding MRF, 2SC, SRF in front of the ID and then I have done
a google, but this has found nothing.

Any ideas?

--Gary


Gary -

Transworld amplifiers used TRW transistors, but I believe those transistors
started with a "9". Some of the former RF designers from that time can be
found at QRZ.COM (Question and Answer forum).

gb