Hi Curt, My problem is solved. While checking voltages on R3 and the regen pot, I found 0 volts on R3. The connection between R3 and the pot was open! I ran a wire from the pot to R3 and the set came

Hi Jim, Thank you for pointing me to the problem. When I got to #4 voltage check on your list, I found 0 volts on R3. I found the connection from R3 to the pot was open! As soon as I connected a wire

Just for info, my radio (which works) has following readings Curt KB5JO

What about removing R47 and the first hundred kits?

Hi Herb, I'm presuming you've fixed the earlier problem of low voltage on the Q3 collector? Before replacing any more parts, do a little voltage detective work for us. This will give some clues as

PERIODIC REMINDER The 4SQRP Mailing List exists for several purposes: To encourage the discussion of QRP activities and techniques, especially those that relate to 4SQRP events. To provide support

Just thinking out loud here, but what if both D2 and D3 were installed backwards? I don't have an Ozark Patrol. I'm just relying on Curt's observations. 72, John, AA0VE

Herb No voltage on Q1 base implies short to ground in that circuit. Absent an internal B-E short, the voltage should be at least 1/2V across D2 and D3. Since you have replaced that transistor, the

Only the original N75 need the mod. All N75a include the mod. Serial number numbers 1-100 are N75. Serial number 101 and above are N75a. You are good to go. de wb0yfl

Hi Herb, The fact that it squeals seems to indicate the audio section is at least working. Not quite sure why voltages around Q1 are not right, so for some reason the problem seems to gravitate there.

Curt, I get nothing from the speaker except slight noise as you turn the volume control up and down. If I touch my fingers from Q1 collector to Q3 collector, I get a loud squeal from the speaker. I

$90 plus ship 72 - Ron - AG1P

When they were available, how much were Hilltopper kits? Jim WW9H

Herb, Any progress getting the radio to function? Curt KB5JO

I have complete and working QCXs by QRP Labs that I would be interested in trading. 20 and 40 meters. Both fully functional, aligned and running. Both are in 3D printed cases. 20 meter rig is about 3

I read that the early 75A kits needed a separate circuit board due to receiver performance, with inadequate AGC range and objectionable distortion. I bought 5 of these kits to build and also to give

Hi Jerry, I know that this post is from last month, but I just finished up my Nouveau 75 and would love to test it on air, up for a sked? 73 Bruce W1UJR

How did you determine the frequency offset?

That "Almost!" is surprising. Frankly I had no business getting into the 80m mix. I could hear Johnny but could barely copy 10 percent of whatever he was sending. Dropping my call sign a couple of

Johnny, this is Tim, K0EMP Number is 316-200-6037. Would you please contact me? Tim