Colco Radio Info

[Davex44]

Hiya. I suppose ya get what ya pay for! I bought a cheap 6 channel FM transmitter. It worked very well....for a while. Now I can't get 100 feet away from the plane and it's twitch city! I think the RF analogue output driver is flaky. Problem is I have no idea what it is. There is provision on the circuit board for TO20 style transistor(Like a LM7805 case) but they used a SMT device on the other side of the board. It says RF 32. Anyone got a clue what it is!! Or what should be there to handle the current better???

Thanks for any insight fellow!!

Dave

[Davex44]

Just thought I'd pass along this info in case anyoyone else finds themselves with the same problem.
The Colco CLC 6 channel radio is a PIC based radio with a driver transistor that has RF 32 printed on it.
This is a surface mount NPN transistor called 2SC3357. A high frequency,low noice device from the good folks at NEC. I found an NPN output transistor in an old radio called 2SC2314. More current capable, so I popped in in. Turned on the power and watched for smoke...... none. It works just fine.
FYI that transistor is replaceable with a BFQ19 or BFQ97, from what I've googled.
Dave