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

Terry_VK5TM · 19th May 2019, 1:17 am

No, you definitely shouldn't have 12v on the base of the MRF433's.

And 0.7V on the emitters is strange as they are directly connected to the negative line - are you sure you are probing the right leads of the transistors?

And for reference, these early models had no low power output option for transverter use etc.

19th May 2019, 1:17 am	#6
Terry_VK5TM Nonode Join Date: Oct 2010 Location: Tintinara, South Australia, Australia Posts: 2,340	Re: Yaesu FT-7 No Transmit No, you definitely shouldn't have 12v on the base of the MRF433's. And 0.7V on the emitters is strange as they are directly connected to the negative line - are you sure you are probing the right leads of the transistors? And for reference, these early models had no low power output option for transverter use etc. __________________ Terry VK5TM https://www.vk5tm.com/