I would like to point out the new Philips LDMOS transistor, BLF369.
It is the first new LDMOS device to replace the venerable MRF151G
DMOS (Motorola) design which has been copied, improved, and sold into
thousands of amplifiers worldwide.
I am waiting to test the new part, rated CW up to 225 MHz, with 500
watts, off a 32 volt drain supply. Gain is 18 dB up there. Obviously
this is not going to be your routine HF amplifier part, but for VHF,
UHF power, it looks very attractive, at $225 in small quantities
(Digikey). Has anyone here had any experience with this part yet?
We have need for driver stages for our big tube amplifiers at 201
MHz, and up til now, have used MRF151G -style DMOS amplifiers. We
bought a sample pallet for 300 watts from one of the Italian makers
last year, but a big improvement in stage gain and power can be had
with the new LDMOS part from Philips.
73
John K5PRO
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|