Re: need help fixing a Yeasu ft-101-es
Hi Dan. I found out why the the reason that the receive isn't working. A suggestion from Alex N7SM at the winter field day. To check the headphone jack. Sure enough I jumped the pines on the back of the headphone jack with an alger clip and I got full sound. But I don't reremember how to get the head phone jack out.
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Re: Rs: need help fixing a Yeasu ft-101-es
Hi Steve, I have the FT-101E but have never heard of the ES.? I checked online to see if any schematics were available but did not locate one.? I did find out the below information about it.? Maybe that's why I'm not finding any documentation on it.? It looks to have been manufactured in the late 70's.? Since you have three tubes your transceiver must have been modified for more power output.? I assume that the input power was changed from 100VAC to the US 120VAC requirement.? Using your VOM you could measure the supply voltages.? A schematic from another model might help verifying if your unit is close to that to determine voltages.? The unit is old enough that you may have high ESR, leaking capacitors throughout.? That should be an easy check to measure some of the smaller caps with an ESR meter and you can do it in circuit as long as the caps have been discharged before measuring.? You mentioned working on these units before, so you probably know all this.? I'm not an expert but plan on powering up my 101E but using a dim bulb tester I need to build.? I bought my Yaesu it the late 70's and would hate to see any smoke as most parts are obsolete.?? Good luck and let us know how it goes.
- The?FT-101ES?was a special FT-101E model for the Japanese market only with a single 6JS6C tube and 50-watt output.
Dan -- 73, KK7JNR
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Rs: need help fixing a Yeasu ft-101-es
Hi All. Re: I reasnly got a partly working Yeasu FT-101-ES. I got it asis from a pawn shop. The Pawn shop got the 101 in an estate sale. The 101 came Complete expect for no A/C or DC power cord. I got an A/C power cord from eBay. The A/C
cord arrived about a week ago. the 101 powers up BUT there is very little
sound, just a tinny bit of static and when I turn on my FT-890 HF rig (It works great) to 3.980mhz and turned the antenna switch to the
FT-101-ES and turned the mod on the 101 to tune and moved the ptt
switch to MOX I got a very loud tone out of the transmit on the 101 and about 30 watts power reading on my MFJ-941E tuner with the 101 preselect, plate and load tuned right. I can hear my own voice on the FT-890 when I speak in the mic on the 101. All 3 tube filaments light up. So that tells me that the TX is working up to the
driver tube and probably the finals are putting some power out.? It also tells me that the 3 ganged tuned IF cans haven't been messed with (thank God for that). It has been many years since I last worked on any FT-101 anything. I am going to need some guidance on fixing this rig. All I have for test gear is an old Echo tube driven RF GEN and a Ideal 61-340 digital VOM. I sold my portable tube checker a few years back.
BTW When I tried to TX on the FT-890 I heard NOTHING on the FT-101-ES
?
?
?
From the desk of the Amateur radio station of?KC7BYP
1/24/2024
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Re: FR-101D with LED display?
Thanks for the info! I uploaded some pictures of the display unit and the restoration. I'm definitely need to find a FL-101 now! HI....
Erwin, PA3DAF
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Re: FR-101D with LED display?
Erwin, I have one of these FR-101’s with the LED’s as well. I have never been able to find any documentation on the LED version either other than verifying these were part of the last production run of the FR-101.? If you do happen to find any additional info on yours, please share with the group. I think these were quite rare. Yours is the only other one I’m aware of.? I also have several FR-101’s with the more common green VFD tubes. Great receiver, (I have mine paired with the matching FL-101).
Tom / W7OA
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On Jan 11, 2024, at 10:35, PA3DAF <PA3DAF@...> wrote:
?I recently bought this FR-101D with LED display. It was very dirty inside and outside but with all filters, FM unit and a 2 meter converter. Last weeks I cleaned it thoroughly and everything seems to work but it needs some realignment and the top cover can use some new paint.? But how rare are these? I only find pictures and info of the D versions with the green nixie tubes. I can't find any schematic or manual about his LED version and it's all original Yaesu! Who has more info? <thumbnail_IMG_6035.jpg> Erwin, PA3DAF
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Re: FR-101D with LED display?
Hello Erwin,
I have an FR-101D, together with the matching hybrid transmitter, the FL-101.
My FR-101D has the green display. I have the original manual for it. I bought the pair together with the FL-2000B at an estate sale. The transmitter and the receiver didn't work initially, but after thorough cleaning from accumulated dirt inside and applying contact cleaner to all the switches, potentiometers, and internal connectors, the set works great. I use the setup dedicated to a regional AM net on 80 meters, and I get compliments on the audio quality.
I can scan my manual and make a PDF file I'll be happy to share with you.
73, Meir WF2U
Landrum, SC
On Jan 11, 2024, at 1:35?PM, PA3DAF < pa3daf@...> wrote:
I recently bought this FR-101D with LED display. It was very dirty inside and outside but with all filters, FM unit and a 2 meter converter. Last weeks I cleaned it thoroughly and everything seems to work but it needs some realignment and the top cover can use some new paint.? But how rare are these? I only find pictures and info of the D versions with the green nixie tubes. I can't find any schematic or manual about his LED version and it's all original Yaesu! Who has more info?
Erwin, PA3DAF
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Re: FR-101D with LED display?
Hi,
I’ve just checked my FR101D and it has a green display, I too have an FL101 and the FR101D, I also have a standard FR101 analogue display. The only thing I can’t find is the 5 pin plug for the cable end. Thinking of using Din socket and plug.
Regards
Amanda
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Re: FR-101D with LED display?
The red LED’S came out in the last runs of the FR-101 digital display models. ? 73 Roger VE7LB ?
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From: Yaesu-FT-101@groups.io <Yaesu-FT-101@groups.io> On Behalf Of PA3DAF
Sent: Thursday, January 11, 2024 1:42 PM
To: Yaesu-FT-101@groups.io
Subject: [Yaesu-FT-101] FR-101D with LED display?? [Edited Message Follows] I recently bought this FR-101D with LED display. It was very dirty inside and outside but with all filters, FM unit and a 2 meter converter. Last weeks I cleaned it thoroughly and everything seems to work but it needs some realignment and the top cover can use some new paint.? But how rare are these? I only find pictures and info of the D versions with the green nixie tubes. I can't find any schematic or manual about this LED version and it's all original Yaesu! Who has more info?
Erwin, PA3DAF
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Re: FR-101D with LED display?
If you go onto the Fox Tango International? website i think there are or maybe some info on there .There is alawys somebody on that site who will point you in the right direction .
I also have the the FR101/FL101 reveiver/ transmitter but mine was rescued after a lightning strike the transmitter taking the hit? the joining harness was almost destroyed but they both still function after repair work hope maybe helps , Regards Steve 2E0MDM?
On Thu, 11 Jan 2024, 18:35 PA3DAF, < PA3DAF@...> wrote: I recently bought this FR-101D with LED display. It was very dirty inside and outside but with all filters, FM unit and a 2 meter converter. Last weeks I cleaned it thoroughly and everything seems to work but it needs some realignment and the top cover can use some new paint.? But how rare are these? I only find pictures and info of the D versions with the green nixie tubes. I can't find any schematic or manual about his LED version and it's all original Yaesu! Who has more info?
Erwin, PA3DAF
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FR-101D with LED display?
I recently bought this FR-101D with LED display. It was very dirty inside and outside but with all filters, FM unit and a 2 meter converter. Last weeks I cleaned it thoroughly and everything seems to work but it needs some realignment and the top cover can use some new paint.? But how rare are these? I only find pictures and info of the D versions with the green nixie tubes. I can't find any schematic or manual about this LED version and it's all original Yaesu! Who has more info?  Erwin, PA3DAF
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Re: FT-101ZD Relay Cleaning
Garden variety?
Peter G0 LQU
Eric W7EV wrote:
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I'm assuming this radio has a garden variety changeover relay but wanted to check with those more experienced with the ZD. Assuming the relay is the stock relay, are there any tricks I should be aware of or anything I should be concerned about? Is it silver plated? I don't want to damage it so can I just attack it with a dollar bill and some deoxit? Anyone? Anyone?
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I'm assuming this radio has a garden variety changeover relay but wanted to check with those more experienced with the ZD.? Assuming the relay is the stock relay, are there any tricks I should be aware of or anything I should be concerned about? Is it silver plated? I don't want to damage it so can I just attack it with a dollar bill and some deoxit? Anyone?? Anyone?
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Re: Yaesu ft 101E no ALC indication on SSB
Thanks again Peter. I'll look into those items. (when I next get the inclination!)
Peter G0LQU
Peter Roberts G4DJB wrote:
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Okay Peter - that one sounds very much like a leaky C13. That capacitor couples the anode of the driver to the grids of the PA and is another of those known weak spots!
I sounds as if your radio does need a fair bit of TLC and I would recommend replacing C11, C13, C131 and C17 - all of these are chassis mounted items on the underside of the radio in the driver/PA area. Whilst there, the driver & PA areas should also be checked to see if any of the resistors there have gone out of tolerance and replace any that have.
I have an early 101 and a late 101E and have seen all of the above capacitors go leaky on one or both radios, plus a number of the resistors in the driver/PA area go out of tolerance.
73,
Peter
G4DJB
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Re: Yaesu ft 101E no ALC indication on SSB
Okay Peter - that one sounds very much like a leaky C13. That capacitor couples the anode of the driver to the grids of the PA and is another of those known weak spots!
I sounds as if your radio does need a fair bit of TLC and I would recommend replacing C11, C13, C131 and C17 - all of these are chassis mounted items on the underside of the radio in the driver/PA area. Whilst there, the driver & PA areas should also be checked to see if any of the resistors there have gone out of tolerance and replace any that have.
I have an early 101 and a late 101E and have seen all of the above capacitors go leaky on one or both radios, plus a number of the resistors in the driver/PA area go out of tolerance.
73,
Peter
G4DJB
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Re: Yaesu ft 101E no ALC indication on SSB
Hi Peter and many thanks for the additional advice. Actually I have decided to have a break from that radio - if anything there are other things not working - when I try to adjust the standing current Ic in "Tune" mode it suddenly jumps to full scale, the pilot light dims, and there is a "crack" sound fro the area of the PA.If I may I'll contact you later when I feel like pursuing this!
Kind regards
Peter
G0LQU
Peter Roberts G4DJB wrote:
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Hi Peter,
Okay, so no SSB out even though you have AM & Tune/CW. It still could be a fault with the ALC or dirty relay. You could certainly check the voltages around D2 in the ALC circuit. If C17 has gone leaky (a common fault) then there could be a large negative voltage on the ALC line to the processor board which would shut down the SSB output (ALC does not operate on CW, AM or TUNE).
As for the relay, there is a small cross-head screw on the top of the relay's plastic cover that fixes the plastic case to the metal bracket that holds the relay coil. Remove that screw and it should then be possible to remove the relay's plastic cover.
Probably best to start with voltage checks on the processor board around Q6 and the ALC input pin.
One other thing you could try is to take/make a short jumper lead and temporarily connect the input to the output on the processor board and see if SSB on Tx works like that.
By all means you could email results as I don't often check this group.
73,
Peter
G4DJB
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Re: FT-101E conversion to 6883B finals
Hi Dan,?
Very good on the test bench set up. The dim bulb test should work fine. I don't have much in the way of test equipment ... a B&K isolation transformer, a digital 200MHz disk channel scope with built in signal generator (that's handy), a couple of multimeters and some insulated trimmer adjustment tools from my TV/radio servicing days. I found out in short order however, that they weren't insulated enough to work around high voltages. I got but a couple of times while neutralizing the new finals. It took two layers of shrink tubing for isolation. Live and learn I guess.?
I got some smoke once towards the end of my rebuild. It took me almost three days to find the source. Had the rig on its side, heard a quick snap and saw a little puff come up from ..... somewhere. After inspecting EVERYTHING,? under magnification, and finding nothing I turned it on again and found I had no audio. It turned out that I had lost the AN-214 audio amp .... no visible component damage though. Anyway I replaced that and it came back to life.?
I also had to build my own .156" pitch extender cards. I designed 4 double sided cards and bought several dual position edge connectors. The 101E uses single position connectors but I figured dual position connectors would be more versatile.?
Anyway, I've rambled a bit here so I'll let you go. I need to get my antenna back up on the roof now that is cleaned and tuned. Good luck with getting your rig back in service.?
73
[Edited Message Follows]
Hi Ron,
Yes, I have a variac.? My plan is to use a Tripp-lite isolation transformer I modified to be truly isolated.? Plug the variac into it and from the variac connect to the dim bulb tester with (3) switchable bulbs of different wattages.? Have all the parts just need to put the dim bulb tester together.??
Glad you brought up using the variac only.? My understanding from YouTube is that if any shorts are present then the bulbs should limit the current and prevent any damage.? Not sure if this is true in all cases but it sounds good.? I have been slowly setting up a lab and acquiring test equipment.? My ham radio gear is from the late 70's I bought new but has been sitting.? My heart would drop if I saw any magic smoke from the FT-101E especially with hard to get or unobtainable parts.? I would like to get test equipment for transceiver repair and alignments.? Not sure what you use.? I purchased a two-part re-cap kits from eBay pending installation.? Need to find out if any alignments will be needed afterwards.? It's been slow but lots of fun along the way.??
Thanks for your help.
Dan
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73, KK7JNR
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Re: FT-101E conversion to 6883B finals
Hi Ron,
Yes, I have a variac.? My plan is to use a Tripp-lite isolation transformer I modified to be truly isolated.? Plug the variac into it and from the variac connect to the dim bulb tester with (3) switchable bulbs of different wattages.? Have all the parts just need to put the dim bulb tester together.??
Glad you brought up using the variac only.? My understanding from YouTube is that if any shorts are present then the bulbs should limit the current and prevent any damage.? Not sure if this is true in all cases but it sounds good.? I have been slowly setting up a lab and acquiring test equipment.? My ham radio gear is from the late 70's I bought new but has been sitting.? My heart would drop if I saw any magic smoke from the FT-101E especially with hard to get or unobtainable parts.? I would like to get test equipment for transceiver repair and alignments.? Not sure what you use.? I purchased a two-part re-cap kits from eBay pending installation.? Need to find out if any alignments will be needed afterwards.? It's been slow but lots of fun along the way.??
Thanks for your help.
Dan
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73, KK7JNR
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Re: FT-101E conversion to 6883B finals
Hi Dan,? Do you have a variac? That would work. I used a multitap (90v-120v in 5v increments) isolation transformer when I brought mine back to life. Then it managed to blow both Q1 and Q2 on the regulator board .... no 6v so no VFO and no operation. I ended up recapping the regulator board and replacing the diodes on the rectifier board.?
It's been an education ?.
Hi Ron,
Glad to hear the conversion worked out for you.? I had read some articles about the conversion but wasn't sure where that would lead me if I needed to do it.? I'm assuming these tubes are easy to acquire and hopefully cheaper.? I have a couple of holdups on my radio before powering it up. I want to build a dim bulb tester to power it up in case of damage from old electrolytics.? After that, check the power output and see where it's at.? Forums are new to me as a participant, so I had to jump in when I saw mention of the FT-101E.??
Thanks for the reply.
Dan
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73, KK7JNR
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Re: FT-101E conversion to 6883B finals
Hi Ron,
Glad to hear the conversion worked out for you.? I had read some articles about the conversion but wasn't sure where that would lead me if I needed to do it.? I'm assuming these tubes are easy to acquire and hopefully cheaper.? I have a couple of holdups on my radio before powering it up. I want to build a dim bulb tester to power it up in case of damage from old electrolytics.? After that, check the power output and see where it's at.? Forums are new to me as a participant, so I had to jump in when I saw mention of the FT-101E.??
Thanks for the reply.
Dan
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73, KK7JNR
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Re: FT-101E conversion to 6883B finals
Hi Dan,? I was a little concerned about that as well.? I actually triple checked everything I did before applying power. I used the cold neutralization process from the conversion article and added the trimmer cap for 10m as recommended. Apparently everything went fine with the conversion. I chose the 6883Bs over the 6146 in order to get the 100+W output. The 6883s require a higer grid voltage than the 6146s but the article and the schematic provided gave the specifics on how to install the grid boost circuit.?
Don't know if I answered your question but the conversion work for me. My first contact after going back on the air was in Scotland and my report was 59 at 100W with a Cushcraft Ringo Ranger at about 10m. My 2nd contact was just yesterday afternoon in Iowa, again 59 but at 50W with the same antenne only at about 4m (trying to fine tune since SWR was 2+). Today's contact was in Oregon with same antenna setup and about 50W. All things considered I'm very happy with the rigs performance. Tomorrow I hope to get the antenna back up to its 10m height and I expect? the SWR will come down.
I realize this was a bit long and maybe a bit disconnected but overall the 6883s are actual beam power tubes AC BFF they seem to be working well .... the rig? actually runs a bit cooler as well.
73, N1BHE
Hi Ron,
I have the FT-101E that has been in its original box throughout the years since high school.? It had the 6JS6C tubes replaced once.? Not sure how long tubes last sitting around.??Prices and brands vary widely.? I'm wondering about neutralizing if you can run into issues with different brands.?
Just curious, have you found a place to acquire these tubes at a reasonable price.??
Thanks
Dan
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Ron, N1BHE