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Had the Gonset 201 briefly before it fell apart. Amp had the large HV choke in the plate supply. Transformer windings disintegrated likely from moisture as I live in NY near ocean. How is the Auto-ATU 1000 working?? Your ATU videos were very good, thank you. I plan to get one of those kits soon. neil n2eye

🎉 I would use a bnc connector on the rf input , just 😊 saying

Extremely helpful! Thank you! ❤

You are such a tool.

Does anyone have down load link to this schematic diagram please also is the bridge based on the Stockton bridge design

does anyone have a link to the assembley manual

You don't know what you are doing. You are putting meter in wrong place.

i hate the way he says "SOLDER" SOOOOOOLDER... NOT SODDER

Where exactly can I obtain the 18 gauge wire with silicon for the extra strength that goes to the SWR part of the tuner? Thank you!

I don't have the same brand or model as yours but this will 100% help me out! About to tackle it tomorrow, thank you :)

Thanks for the video, it work for me , the only thing is that the drain hole in my unit was on the left side , it qas completly blocked by slime and dirty , i use my air compressor, and a foaming cleaning solution.

How hard would it be to have the front panel remote inside the shack with the ATU at the base of the antenna

Completely off topic but I have the same unit and lost the manual. How do you have your vent tab set? I never understood that.

Sad update for me. Totally damaged my coils. Next week its going to be 90 degrees in NY, sooooo I'm ordering a new AC ($600 later)..this video was helpful I just wish it wldve worked for me😢

Can I just go on the outside and use a hanger and clean out the drain? I have the same AC and see the hole outside Do you think that will work?

Thank you, you saved my sanity this week, we're ready for the heat wave! But...Any tips for fixing my ruined century old hardwood floor? 😢

I couldn't see under my coils so I suctioned out as much water as I could with a turkey baster and put some undiluted dollar tree awesome cleaner in the pan and ran it a little at a time and it opened mine up but had some bubbles for a little while and it seemed to break up a lot of stuff from the back where the squirrel cage is also.

Thank you! I have the same model and you saved my walls from being ruined!!

Also beach attracts mold due to the carbon in it - clean but spray with some baking soda afterwards to inhibit the mold - thanks I'm glad I listened to the end - I didn't check the right side so your advice helped

Problem with these units is there is no place for the water to go, no drain hole. Carefully drill a hole in my unit away from the coil where the water could drain.

I have the same a/c and had the same problem. There are appropriate cleaners available on Amazon etc... the bleach rusts steel out.

Great video, I am wondering if your issue with the microprocessor is related to the fuse settings which can impact IO functions of the chip even when programmed correctly...

My frigidair wall unit is the same thing. In going thru im gonna go under coil to get sludge. You feel all the sludge. Inside my unit

I just want to know if all these brand units leak water to the bottom and it has drainage via a pipe or hose? Mine is Frididaire Galley. First time I used, I do not remember any water leak.

TNX for a nice video. My kit came with a Oled display - a nice one in colors, but very small. I would prefer a LED-display - like yours. Are there any instructions on how to change the code so a LED-display can work with the ATU ? How to connect a Pickit3 to the processorboard ? Regards OZ6SX

Thanks for explanation on K2 relay, that it is not bypass relay. I don't have schematic, and it is not possible follow the connection easily on double sided pcb. TA2UB Ali Alpay

@george Blake I want to ask if a 1kw tuner can be used on a 100 watt radio. I'm just learning about the tuner, can I get it into the microchip, what should it read?

just for your info,the wire is called enameled not annealed,annealed copper is what has been softened by heating then quenching as copper age hardens and work hardens!.

Thanks for the info I may try to make one

When I look at the ribbon connectors that goes from the main tuner board to the CPU board yours are installed backwards on the tuner board compared to the picture that comes with the kit (picture terrible). Why are yours backwards (on the tuner board) compared to the picture supplied?

How I can bypass tuner ? Is there any way..?

Where did you find the case to fit the atu-1000?

Hello George, thx for the video. I am also a owner of this tuner, but mine will not tune in a proper way. When it starts tuning the VSWR is higher than before. Any sugesstions what could be wrong ? Which firmware version you are using ? 73 Martin

Thank you so much. Found this very helpful

Have you considered using an Arduino as your microcontroller ? Or since you have a hard copy of the schematic, submit and order from one of these production houses like PCBway ? Thanks for the video , very informative.

Hi George, please could you help me with the schematics to connect my buttons, display etc please!

I built this tuner and I am having a problem with it. It works really nice with my FT-DX1200 and I was able to calibrate it pretty well in the range of 5-100W. Now I have tested it with a 1kW HF amplifier and the power shown is clamped at 173W regardless of what the output power is. I cannot decrease the power of the amp below 250W because the minimum power of the transceiver is 5W. What could be the cause? There is not much documentation about this tuner but I was hoping maybe there is a setting I do not know about.

Thank you for the video. How many turns on the two small transformers of the SWR bridge?

do you measurement backside smd capacitor ? C33 to C39 ?

By the way: in order to get your unit to TUNE, it first has to see RF power. To properly adjust the FWD and REF power, you should use a calibrated RF / VSWR meter like a Bird Wattmeter. You should start out with about 25 watts from input to output and adjust the Potentiometer until your front panel agrees. If you have a high VSWR as shown on your wattmeter, you can adjust the second pot accordingly. If not, reverse you RF cables and use the same power levels. Once you do that, and the cables are correct for forward power, start bringing the power up and adjust as desired. The ARU needs at least 10-20 watts to autotune.

Thanks for the video George's, that's helpful. I got the kit last monday and I have already wired the most of the components on the 2 boards. Before winding and soldering the coils, I fed the board to see what would happen. The OLED display works very well and shows power, SWR and L/C values. The LED connected to the by-pass relay is ON; grounding RB2 has no effect on the relay, I wonder if it is ok ? My documentation (single sheet) is not exactly like yours : there is no mention about RB2 / bypass, only button and AUTO (RB1). What do think about that ? Concerning the tandem match to mesure the direct and reflected powers, I have notices the small pieces of coax which support the toroids are not supplied in the bag, this is not a real problem. By the way, most of the tandem match I saw put one side of the coax shield to ground. I wonder if the tandem match works properly despite this connexion ? 73 Gérard

hi, george I bought the ATU-1000w, because it is a double-sided board, I ask how to solder the relays on both sides of the board, or it is not necessary, I can solder only on the underside, and the other components. thanks.

Thanks for the video, what is the direction of winding the two smaller toroids. Are they opposite of each other. I have a ATU100 and still cant work out how to wind the binocular transformer. Thanks.