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Hello, I'm wondering how the Marker signal which seems to be a 25KHz NF signal actually leads to a signal 'received' on 14.2 MHz ...? Any input appreciated 73

Hello group (This also posted elsewhere) After almost a 12 month postponement with a number of other more straightforward projects suddenly taking up bench space I'm back onto this elusive problem where the FT101E clarifier is working when it's turned off! The voltage swing at the VFO osc input is not as great as when its on, being about 0.35V. Compared to about 3.0V when clarifier switch is on (I really want to solve this because cosmetically this radio is in great condition and I've replaced the usual final cage suspect caps, the HV electrolytics and those on the regulator board). There remains just this one thing to resolve and I feel (after several hours) I have reached the limit of my knowledge in relation to what may be causing this. Thanks to many folk who have provided useful input to help me so far. Here is what I have tested or tried but with no success - Checked relay grounding is sound Checked the clarifier push button switch is not faulty or intermittent Checked front panel VFO selector switch Swapped out Regulator/Calib module for known working one Swapped out Local Osc module for known working one Checked disc ceramic cap and diode (D13) wired directly onto clarifier switch/potentiometer I don't know what to do next and would certainly appreciate any ideas please :) Thank you Grant

Hi all, A question about the FT-101ZD Cooling Fan. Does it pushes the air in or out ?? 73, Jacques, VE2JFE in Montreal

Dear Mick I'm not sure that I understood the complete problem, but if as you say " ALC/Power/IP still show the same readings if its putting power out or not ", I believe or think that is a relay problem. The relay in the tube cage commute between Tx and Rx mode. I guess to see FT-101e schematic to take a overview it?s a good idea. good luck Emerson, PP6EW Em qui., 16 de jun. de 2022 às 14:31, mick smith <michael.newbury@...> escreveu:

Is it feasible to add AM capability to a MK0? Does anyone have experience with this? Thank you. 73, Michael Smith, N4KZO

Hi, I'm new to FT-101 world but am really enjoying it. I recently got an FT-101E and have done a lot of work getting it to work properly. I've recapped the entire thing, performed the clarifier and tx/rx adjustment procedures, cleaned all of the internal contacts, etc. It transmits and receives great and sounds good, so in terms of working properly, all seems to be well. I do have a couple of minor things that I'm wondering about though. First thing: part of the tx/rx alignment procedure is to make the voltage match between RX and TX (using Mox) with the Zero Set pot on the high voltage board. When I read the voltages during receive and transmit, they're so far apart that the pot doesn't have enough adjustment to make them match. I have checked TX on a separate radio, and it seems to be aligned with RX fine. I've also made numerous stateside and DX contacts and haven't had any trouble there. Is this a problem? If it is, what can be done to correct it? Second, and more importantly: when I zero beat using the 25KHz or 100KHz signal generator, the frequency that I've corrected to is about 1.4KHz down from the actual frequency. By that I mean: if I zero beat at 14.300MHz using the 100KHz signal generator, I'm actually at 14.2986MHz. The 25KHz and 100KHz generators seem to be off by slightly different amounts too. I have a YC-601 frequency counter so I can account for the discrepancy by calibrating the meter/dial down 1.4KHz to match the actual frequency, but I'm wondering if there's a way to adjust the signal generator to be dead on. I haven't found any YouTube videos explaining this, and I don't see anything referencing it in the service manual. This isn't too big of a hindrance since I know what's going on, but it would be nice to have it "right." My assumption is that something has drifted due to age and it's something that I'll just have to get used to. Thanks in advance. Scott

I bought this rig at a hamfest and the seller was less than honest, imagine that... Anyway, it loads up good but no receive, checking out what others suggest. Specifically where is the Lamp that is designated as FH2? Can someone describe accurately exactly where this lamp is located, or provide a picture? Please, this is the only thing I'm asking, I'm not looking for any other information, I've read all the online suggestions that I have found so far. All I want to know is where is this Lamp?

I HAVE THE FL101/FL101 PAIR BUT WHATS MISSING IS THE UMBELICAL CORD LINK THE PAIR , THE FL101 HAS BEEN REPAIRED AFTER A LIGHTNING STRIKE AND NEW VALVES , AND SOME WIRING REPLACEMENT , WOULD BE GREAT IF I COULD THE PAIR BACK ON THE AIR , ANY SUGGESTIONS OR ANYTHING THAT MIGHT HELP ME TO GET THESE BACK ON AIR WOULD BE MRE THAN HELPFUL , THANKS , STEVE 2E0MDM

I am trying to un-modify an FT-101 EE to restore CW operation in a radio that has an AM filter and the mode switch modification installed. Everything seems to be OK from the pictures and directions in the service manual as far as restoring CW operation. I can do everything as far as reconnecting wires and diode except the yellow wire that goes to the heater switch from pin 4 in the AM modification. Does any one have a clue where that wire came from originally and what I should do with it? Does it just hang in the air or did it actually have a connection on the other end from the heater switch? Don, AK2S

Would changing the SSB filter to a 2.7KHz filter improve RX audio quality on SSB / AM? Sadly the 101ZD has no switchable filter for AM / SSB and I've got a spare 2.7KHz Yaesu filter 'flying' around. I heard that 2.3.KHz on TX SSB is preferable to 2.7KHz? Thanks for the input

Hello group, I have an FT-101EE and am wanting to measure the various voltages off the main transformer. What type of voltmeter is needed as far as ohms/volt is concerned? I own several. VTVMs, modern DVMs, Simpson 260 etc. Which is needed to get the most accurate reading? I see no annotation on the schematic Thanks Mike

Did Yaesu ever make a matching antenna tuner for the FT-101 series transceiver?

THIS IS STILL AVAILABLE AND STILL A GOOD DEAL! I have an FT-101ZD for sale. It's in excellent working condition and about 8/10 cosmetically. It will also come with an outboard second VFO. Photos available upon request. I bought this from a friend who did extensive renovation. He's an expert in the repair of these old rigs. I had thought that I'd use it more than I have, and it's become excess to my needs. I will sell the rig and external VFO for $550, plus actual professional packing and shipping charges. The rig also comes with a manual and a Yaesu hand mic. If you've been looking for one of these old classics, you probably can't find a better one. I greatly prefer PayPal for payment. Interested buyers please email me off list at carl --at-- mycallsign --dot-- com. -- 73 de Carl N8VZ

Hello group, My 101EE has taken ill and I need your help with troubleshooting. I'll try to lay out the events chronologically in order to explain what's going on. * Unit was used primarily on 80m achieving 100 watts out for about a year. No real issues * Unit then sat unused for about six months. * Unit brought back up but with considerably less power out (~20 watts max on 80m and far less on higher bands. * Checked the 12BY7 driver tube on a tester and it showed marginal. * Replaced with another 12BY7 (tube had no markings, but was in a box labeled "12BY7' and it had same form factor as 12BY7. * About 5 seconds after turning heaters on, smoke appeared. Specific location of smoke source was not obvious. * Turned unit off immediately after seeing smoke. (Maybe about two seconds worth of smoke) * Replacement tube was apparently NOT a 12BY7!! * Upon extensive visual inspection, I cannot see ANY fried, melted, cracked, blackened, or otherwise damaged components or wiring. Everything all *looks* normal. * Unit still receives perfectly fine, but... * Will not key the relays when PTT or MOX is activated. Stays in RCV mode. I'm wondering if I can get some help with trying to figure out what got damaged and what I should do to troubleshoot and get this thing back working. Any help appreciated... 73's Mike KD7VRG