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It is obviously not seeing/talking to the chip, being a clone should not be a problem, all the ones from China are clones. Mine works fine. Are your connections correct?

Hi, thanks to David, he guided me to this group. I want to reduce the minimum power required for tuning down abt. 1 Watt - in theory everything is completely simple after watching IK3SSG's video. Pic

Hi. Because a hysteresis loop. You will need a really big ferrite core to hold 10W RF power with good Q.

I asked this question before, and didn't receive any response! Commercially-available tuners such as the LDG and MFJ seriously de-rate their power handling when used on FT8 mode. The LDG RT100 (100 W

I was perusing "Q-Curves for Iron Powder Cores" and noted that Mix #1 for the 10uH inductor had it's typical Q in the .15 to 3 MHz range. The actual measured Q examples (page 8), were for 100 turns on

Thanks Brock. Have the wires connected under the board for the Auto and Bypass switches - If I build another one, I think that I will find a different method to attach those. Michael

Hi Michael, Yes, I can provide an update. The seller offered to send me some replacement Schottky diodes, which eventually arrived.? They turned out to be axial diodes, not surface mount, so that was

Marek When you plug your ATU-10 in a PC, window should pop up with a file in it "README.HTM".??? Don't bother to read it. You should have downloaded the V1.4 HEX file from David's Github page

Excellent, Don

That was it Glenn.,..hit it with the hot air and it popped right off thanks Don

Brock, Good information -any updates on your progress? Still building mine - it came without switches. From the schematic it looks like they are all momentary switches, I hope I am correct. I also see

Hi All, Sorry for basic question but I am new to this building kits stuff. Could someone please direct me to information how to update firmware on ATU-10. I purchased recently ATU-10 on eBay and it

I've used a hot air stripper to remove a PIC16F1938 and other soic chips when I wasn't happy with my part placement. I usually put some tin foil on top of the chip to deflect the heat away the body of

alternatively place the pcb on a hot place and gradually heat until the solder melts. Some ID packages are porous and heating them too quickly can cause damage. See

Hi Lance Yes the parts can be a bit hard to find locally.? Or at least for a reasonable price.??? BUT:- You can buy the relays on ebay for 10 for about US$10 with free post. Order 2 lots as you

I'll try that tonight.....thanks Don

The TP4056 *is not glued down* in the normal sense. It has a solder 'paddle' under it, which is soldered down to the ground plane of the PCB. To remove the chip you will need a hot air gun with a

G’day Glen I’m definitely interested but as always the expense of buying parts in Oz is a little off putting. Can I ask what are you thoughts. Cheers Lance VK6LMK

I just got a few of the TP4056 boards from Amazon...the USB connector is correct and easy to pull off with Chip Quick....BUT the TP4056 is glued down to the PC board. Looks like they glued it to

Thanks, Max KG4PID