WA6PZB
A journal for my projects and experiments in the physical world
Sunday, October 2, 2022
Bread Board PBX (BB_PBX) - Ring Generator
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I am working on a PICAXE ring generator for the BB_PBX. Since the SLIC modules require two pins with signal timings to ring them, I can red...
FTDI Picaxe programmer
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I needed to build a simple logic block for my Bread Board PBX to simplify the software and decided to use one of the PICAXE micro-control...
Wednesday, September 21, 2022
Bread Board PBX (BB_PBX)
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I have been experimenting with the construction of a simple telephone Private Branch Exchange (PBX) using ready made telephony, audio WAV/MP...
Monday, December 6, 2021
Simple Analog Servo Loop
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I am working on a simple proportional servo loop using a 741 Op Amp and a complimentary pair of transistors TIP41 & TIP42. This circui...
Sunday, June 27, 2021
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Receiving ISS SSTV Images from the ISS ARISS "Amateur radio on Shuttle, Mir and ISS" SSTV event - June 21-26 Myself and several of...
Monday, December 9, 2019
1802 Membership Card - Loader
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I can now load anything into my "all memory" 1802 Membership Card. I located this fine work by Don Meyer on his loader built using...
Monday, October 21, 2019
1802 Membership Card (For me and you and the 1802)
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I built the 1802 Membership Card this weekend and had a blast playing around with it. It has been 4 decades since I ran code on this ...
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