@KB7ZUT profile picture
Andy @KB7ZUT

RF junky who escaped from a rehab facility

Joined December 2019
  • Tweets 1,209
  • Following 439
  • Followers 917
435 Photos and videos
Andy @KB7ZUT
Jun 7
After fixing this little mechanical monster, I will never complain again about SMT parts being too small.
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Andy @KB7ZUT
Jun 3
Me: Just one more QSO, please. Mic Cable: I think you have had enough, sir… #hamradio
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Andy @KB7ZUT
May 31
Can you spot the totally missing solder joint on my Siglent power supply encoder ground? It has been slowly driving me insane for the last couple of months. Me: Just increase by 50mV please. PS: how about going all the way to the 32V limit in one step…
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Andy @KB7ZUT
Apr 29
Nothing like "fresh hot PCBs" just a few stops away. Can't wait...
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Andy @KB7ZUT
Mar 30
I successfully modded @yas0107 I2C bus sniffer to work on the ESP32 (Adafruit ESP32 V2 Feather.) Nice little I2C debug tool that is actually useful. 🙂
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Andy retweeted
Alex Bowers @BowersWrites
Mar 3
Happy heavenly birthday to Canadian WW II veteran and Star Trek icon James Doohan. Known for playing Montgomery (Scotty) Scott in the original series, he also - on June 6, 1944 - stormed Juno Beach. He would have been 106 today. Learn more in my upcoming article with @CraigBaird!
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Andy @KB7ZUT
Feb 28
Hopefully not a pirate. Let the chaos begin!!! #hamradio #3y0k
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Andy @KB7ZUT
Jan 23
Very cool 😎 to see this radio repair becoming available. If you’re in their geo, please consider supporting them with your radio repair needs.
Juan Carlos - EA3GRN @ea3grn
Jan 20
Como radioaficionado siempre me ha gustado reparar y entender como funcionan mis equipos. Ahora la empresa donde trabajo (capatres.es) ha abierto una linea de negocio de reparación de equipos de radioaficionado y yo estoy como cara visible.
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Andy @KB7ZUT
Jan 21
Really excellent overview on the different types of Crystal Oscillators - TCXO, OCXO, VCXO Explained youtu.be/IPbot1Ix2OU?si=it9w… #Hamradio
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Andy @KB7ZUT
Jan 12
A little wide, don’t you think… #hamradio
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Andy @KB7ZUT
Jan 4
Add a couple of vertical antennas and you have a rotatable directional array. “Let me turn the island to see if your signal comes up…” #hamradio
KeriA
 @KeriA1776again
Jan 1
He’s out here living his best life.
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Andy @KB7ZUT
Jan 1
Spending the New Year’s holiday on the islands. A very happy New Year everyone! #hamradio
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Andy @KB7ZUT
24 Dec 2025
Single transistor Hartley oscillator doing its thing. Overnight drift test in progress. #RF #hamradio
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Andy @KB7ZUT
19 Dec 2025
Question #hamradio #hamr
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Andy @KB7ZUT
19 Dec 2025
What kind of HAM are you?
50% Close enough…
0% Must achieve 1:1 SWR!
25% Take analyzer apart
25% Ham and cheese please
4 votes • Final results
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Andy @KB7ZUT
14 Dec 2025
Good dealer: great stock, fast shipping, discrete packaging, and I don't need to drive to the shady side of town...
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Andy @KB7ZUT
11 Dec 2025
2n2219 class A RF Amp working as the pre-driver for the single IRF510 final in my home -brewed 40m SSB transceiver. #hamradio #RF
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Andy @KB7ZUT
5 Dec 2025
Intermodulation Products (IMPs) Dancing! #RF
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Andy @KB7ZUT
3 Dec 2025
Favorite circuit of the day! Automatic Gain Control (AGC) for my homebrew SSB transceiver by Wes Hayward, W7ZOI, and Jeff Damm, WA7MLH. If you want to keep your ears from being smoked by a powerful station on your scratch built receiver, you need this circuit. #hamradio
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Andy @KB7ZUT
1 Dec 2025
Say it with me: Ω. And again Ω. Breathe in and say it again Ooohhhmmm… Very good. Hopefully everyone is relaxed now. Back to work.
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