UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Yaesu FT-7 No Transmit

Sufferinghusban · 18th May 2019, 5:21 am

I purchased an old FT-7 for parts, but in all honesty the receive side this radio is so good I cant pull the parts I want! Tested the TX and nothing coming out. Put it on a dummy load and tested what I can on the finals MRF433's. They have 12v on the base, and when keyed I get about 0.7v on the emitter. I have a receiver setup near the FT7 and when I key it in CW I can hear a tone coming through on that freq but only very weak. I have never touched transisters like these before, but believe they are blown and I have to replace them. Basically just looking for some advice on removing them as they are the oddest thing I have seen in a while. Thanks.

18th May 2019, 5:21 am	#1
Sufferinghusban Triode Join Date: Apr 2019 Location: Nowra, New South Wales, Australia Posts: 10	Yaesu FT-7 No Transmit I purchased an old FT-7 for parts, but in all honesty the receive side this radio is so good I cant pull the parts I want! Tested the TX and nothing coming out. Put it on a dummy load and tested what I can on the finals MRF433's. They have 12v on the base, and when keyed I get about 0.7v on the emitter. I have a receiver setup near the FT7 and when I key it in CW I can hear a tone coming through on that freq but only very weak. I have never touched transisters like these before, but believe they are blown and I have to replace them. Basically just looking for some advice on removing them as they are the oddest thing I have seen in a while. Thanks.