These Ft-901s were the top of the line radio in their day. I’ve been running one as my backup rig for a few months. Killer receiver and rejection filtering.
Great video, lots of good info, especially the VFO servicing. My 901DM is 46 years old now, June '78 build and the VFO is getting a bit lumpy. Also got issues tuning up on 40. Loading control won't peak. Just keeps rising all the way to position 10 on the scale. l hope yours is now working 100%. Thanks for posting. 73 de Keith
Great video a great learning experience for those who don't own this radio. Enjoyed it very much appreciate your doing this video very kind of you 73s Mike
Hi Josealeixes2861, I have been very sick the last few months but am slowly recovering now. I have a number of projects I'm anxious to work on and plan on beginning soon. Thanks for asking.
Nice video. Learned something. I was wondering if the M (memory) enabled might something to do with digital display. Looking forward to the follow up. Fernando N2FQ/6
Hi.... I have a 901DM on my bench and the clarifier does not work. I can't hear the relay open/close when I push the RIT button in. TX clarifier does work. Question! How in the hell do you get to the 1920 switch board? Do I have to take the entire front panel off?
I bought one FT 910D back in January. Seems the Attenuator Switch is pretty much broken. If it is half depressed I have a good reception, in any other position I have nearly no reception. And the S-Meter doesn't display how much output I have. I will trace all the cables and see if I can get the 901 back to service. On the good side: VFO is stable and not drifting, dial is smooth output is around 80Watts, but without a proper readout I won't try more. Any tipps are higly appreciated.
Hi Andre, Incoming RF is routed through the Tune Switch board ( PB 1720) before being sent to the RF board ( PB 1702 ). Switch S03 on the Tune Switch board is the attenuator switch that switches in R05,06, and 07 to attenuate the received signal. I would clean the contacts of S03 as it is likely the cause of your intermittent. It is a good idea to clean all relay and switch contacts as these are the major areas that cause trouble in these older rigs. Good luck
