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-   -   FT736r front end transistor BF982 (https://www.radiobanter.com/homebrew/151562-ft736r-front-end-transistor-bf982.html)

Steve Kelly[_2_] May 28th 10 10:22 PM

FT736r front end transistor BF982
 
Hi Guys
The 144 MHz receive rf amp transistor had a mod which replaced the original
with a BF982.This transistor has been discontinued and i was wondering if
there was a more modern equivalent with a lower noise level.The BF982 is an
N channel dual gate 20v 40ma to 200MHz. Any helpful suggestions would be
appreciated.
Cheers
Steve VK4ADA



raypsi May 30th 10 09:50 PM

FT736r front end transistor BF982
 
Hey OM:

Find yourself an old RCA/GE TV, well a few years old. Like with a
CTC103 and no earlier than CTC77 chassis, yank the UHF front end
transistor out of the tuner, it'll be the one closest to the RF jack.
The VHF front end is good to 216Mhz and the UHF is good to 900Mhz. And
they are all N channel.

I wouldn't worry about noise figure at 144Mhz unless you are doing
EME.

I used to make a living repairing RCA/GE tuners

73 OM
de n8zu


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