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Evening all.? I have been testing the ATU. I can switch on with all Auto Bypass and hold and takes me to Fast Mode as it should.? All of my relays are activated as I can see all of the LED's are lit

Hi Neil, it's BAT41 . 73

Have same issue. I see the bridge but what diodes? New to the ATU100. When it came it did not work at all had to go over it clean up sloppy connections got it going but not below 15

Just insulated the Earth terminal post for belts and braces.? There really was no need because only used up to 50 watts 73s? G4RVH

Just showing the Maximum of both Inductance & Capacitance 73s? G4RVH

Also added two Berillium Copper Terminal Posts.? One for the aerial long wire and the other for the Counterpoise. 73s G4RVH

Afternoon David. Finally finished off the project and tested out all the Mode switching and all ok.? Attached video of me walking up the Inductance from minimum to maximum and then click the Tune

Hi David, It’s looking good, hopefully everything will work as expected when it’s completed. 73, Dave

Hello again David.? Very slow progress this week drilling holes and cutting a slot for the display. Also designed the front panel in Visio and laminated it.? Quite long winded.? But anyhow getting

Hello Richard, I just got ATU-500 in assembled form from here: https://www.ebay.com/itm/155652355306 Seems to be working fine. Sometimes takes a few tries to get a tune and sometimes it cannot get

This was the photo I meant to send 73s? G4RVH

Hello David.? Thankyou for your kind words.? And yes Ham Radio is a wonderful hobby.? I passed my WhisperLite onto a women electronics engineer just because I hadn't made it.? So ended up with a

Hi David, All fully understood and great to see all of your WSPR spots. I have got a SOTABeams WSPRlite in a cupboard somewhere, but I have not used it for a few years, there are always lots of

Oh I forgot to mention that the DP0POL Station is the Research Ice Breaker that's normally stationed down in the South Antarctica and they listen to my Beacon regularly down there but they are test up

Good Morning David.? Thankyou for explaing to Chris for me.? I've been busy helping my wife whom has has MS for 25 years now so limited to the time I spend on a project like this one.? It's not a

Good Morning Chris.? David has explained fully.? Bought the PCB off Ebay.? Soldered a Pic into the board from AliExpress. Bought a PicKit3 and programmed V3.2 then altered correct Cell for my Oled.

Hi Chris, My understanding is that David (G4RVH) has built the board from scratch and therefore some of the components are what were available. - The electrolytic capacitors are across the relay

Sorry to intrude in y'alls conversation, but what's with all the extra parts soldered onto the bottom of your ATU100? I'm assuming it's some kind of mod?

Hello David,? yes All noted.? I will check with my multimeter the correct current being drawn because that's a very old homebrew PSU.? I will let you know after measuring properly. If you google

Hi David, Yes, the resistors look fine. PS: Did you see the previous thread regarding the current consumption with your setup? /g/ATU100/message/3183 73, Dave