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How would you expect a 250k audio taper pot work? I have a load of these from guitars and amp repair/build.

My first run uBitx came with two 8 pin harnesses, plus a 3 and a 2, appropriately enough. The Bitx40 had a 5 pin harness, but no 7 pin harness. Wonder where some 7 pin headers slipped into the mix,

Quite a few cities have maker spaces now. You can for a nominal donation use all sorts of tools. Chris

So I'm piddling away with the ?B parts as I work out details for my case and stuff, and I can't get the audio connector on.? After an exhaustive investigation, I resort to counting. The connectors

Due to my fat-fingers, some bad code may have gotten into the original _00R release of our I2C modifications and software. Inadvertent use of the D13 I/O pin caused the radio to go into transmit

Cesar So exactly what are the symptoms you are trying to cure now? What is it that does not work? Your first post in this thread says: ? ? i plugged the pins in tge wrond side. Now the sreen is

LCD is working...completely disconnected the ptt..still nothing...it worked for a short time when did 1st power up...

I ordered mine on the 18th and the way it's looking it's probably not going to be a winter project

Do you still have the lcd working? If so, does the radio work but without sound?? Maybe the ptt is activated....

The pin numbering on these relays is inconsistent i.e. reversed in some cases. Either will work OK by taking this into consideration. Mike K5ESS Sent: Tuesday, January 30, 2018 9:36 AM To:

Tried another pot ..ran wires from the board..tried head phones...still nothing..not sure what I should check on the audio circuit..

I give up! Maybe this IRF510 failure thing is a non-problem. Someone recently suggested adding a 1K resistor across the antenna connection to limit really high SWR situations. That sounds

Don't forget the Johnson Smith catalog!!!! 1966's extraordinarily awesome smoke bomb supplier . Well they really were not that good but the waiting was the hardest part.....Steve kb1chu

Wow, ordered on the 15/12 and received via India post. I ordered on the 16/12 and haven't even had a tracking number yet. Fingers crossed the wait won't be too much longer. 73, Ian DJ0HF/G3ULO

Solderings on the trimmer? Look for a weak connection on the volume pot

Built the kit...audio squealed like when I built the bitx40(which I fixed )..now nothing...any other people have this issue? Suggestions?

The 6-8 week wait also was in effect in 1980!? (Another memory was having to drive to the nearest FCC facility for taking the tests, which was about an hour - on the interstate - from where I

I have checked continuity? Orange wire and a3 from Nano continuity-> ok And also D7 from nano to the right last pin connector to board> ok also connection from raduino board to main board... i also

Oh wow! I remember this. For both my novice in '63 and my general in '64! tim ab0wr "David Wilcox via Groups.Io" <Djwilcox01@...> wrote:

Respectfully, current limiting in the final amp is exactly how high-level plate modulation in an old AM transmitter works. Your audio amplifier, which is required to generate a significant amount of