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I changed the 2,7kHz 455KHz Murata for a 455kHz 2,1kHz Inrad. Now the radio is 250gr heavier and the Width control works properly. In pair with a couple of modern digital rigs

3D 010641 is not a late model, it is number 0641 of the 01 series. One of the first radios produced. The 3D refers to dates. It is in the service manual.

Hi Fred, I have a bit of luxury regarding time, most of the restoration projects that I have done have involved a complete strip down, often a sand blast of the chassis followed by a replating and

There are two styles of that knob which I've encountered. One is the splined - used on our FT-980s. The other is flatted - and this is seen on other Yaesu models such as the FT-757/FC-757. What I

Awesome, Matt, Just like mine, that has put my mind at rest, I just need to keep trying to locate this knob to at least complete the front panel, as well as the ever growing list. James

-- -Mat Breton, N8TW

I seem to recall the voltage should be 6.3v on both Upper and lower SSB. This may have come from a 1983 FOX Tango newsletter but it may also be in the FT980 tech supplement. If you don't have the

Cheers for that Matt, it is just that I have bought off eBay 3 complete sets of knobs suposably for the 980 but the knob that should be on the ATT are all D shaped, thus I was thinking it had been

Thanks for your posts Mat - very useful. I can "hear" SSB and CW but very muffled and indistinct. I did check the master oscillator (30MHz) and this was a few KHz low so that was corrected. But I

The shaft is round (not a D-shaft), splined, with a single split. The split is not used by the knob ... but the splines are. -- -Mat Breton, N8TW

Thanks for the info but that is not really what I am after... I just want to know if you remove the knob from the ATT switch is the shaft round or does it have milled shaft, i.e. the shaft will be

I don't have mine open at the time, so I am going from memory and the docs. It is actually a double-pole quad-throw (DP4T) switch. The MPN is?SBU2044N(10)-R15, but I can't find any information

You can check if the BFO oscillator (the one in the tin can) is working by checking the DC voltage on test point TP4004, which is actually located outside of the tin can (not the one inside). The test

Can you hear CW? If CW/SSB both do not work, but both AM/FM do then it lends itself to a BFO path problem (oscillators, amp, or mixer). You can check FM station by switching to GEN mode and listening

Thank you so much Mal for that information and the pictures.and the offer of a variable Cap if I need one. I've just managed to get off the main metal lid of the VCO/PLL unit and am now confronted by

Hi Guys, I am having a problem locking a knob for my FT-980 restoration, mainly due to the shape of thew shaft. Can anyone please let me know if your ATT pot is either all round, or does it have a

Hi Dave and many thanks for your (ground breaking for me!) information. Yes my FT 290 IS a very early model. G0MIX has also confirmed this with me and sent useful pics of the location of that

Sounds like the small variable cap in the VCV. Use a non metal adjustment tool and see if you can get the audio working. First test LSB and compare to USB. If there is a big differece then the VCV

Hi Peter I had similar problems with my ft980 and replacing the trimmer capacitor you mention and worked for me its located on the VCO/PLL board part number TC4001 its a? 1-3pf its inside a metal

By fiddling with the I.F. width control I can "almost" resolve speeech on SSB but clearly something is wrong, with my money on a drifted oscillator. I did check the Master Oscillator (30 MHz) and