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FWARC_Topics: [Various Selections for the FWARC Club Meetings]

by WA7RSO - 04/20/2021

"Looking Back a Few Years"

"Early Logic"

Study Guides for HAM Radio Licenses

New Total Re-Write of the "Sound_Bites" (>2,000 Sound Bites @ 8 different WPM Speeds)

08/27/2020 - "Tech Net" - The Description of the Schematic in QST-BYI--Sept, 2020 - Page 30

"TTL Thresholds"

09/10/2020 - Club Meeting: "The Two Puzzles" ( ~5 minutes)

"ELI" for Pure Inductance (90 Degree Phase Shift)

"ICE" for Pure Capacitance (90 Degree Phase Shift)

09/10/2020 - Club Meeting: "Neat Tricks"

Db's without calculators or formulas ("Interpolating", a technical word for educated guessing)

Estimating Parallel Resistors without formulas or calculators

(also, see Estimating in "Solutions-For-Education.com")

09/24/2020 - "Tech-Net" Explaining Reactance

Static vs Dynamic Considerations (pdf / html)

10/22/2020 - "Tech-Net" Introduction to Gate Functions, Logic Functions

11/19/2020 - "Tech-Net" Taking advantage of the MFJ-269 and other Antenna Analyzers

01/28/2021 - "Tech-Net" Review of Series and Parallel Circuits, especially the Ladder Circuit

03/25/2021 - "Tech-Net" A Glimpse at Power Supplies - Switching_Power_Supplies - (Talking Points)

04/22/2021 - "Tech-Net" The Astron 35 A/M Power Supply (Talking Points)

04/27/2021 - "Tech-Net" "Controlling 'Constant Current Sources' to 'Capacitors and Inductors' "

More Detailed Gate Descriptions and Schematics with Labs

Gating Logic - Functions - Coincidence - Controls

Initial By Functions Multiple Inputs Multiple Controls

Basic Gates Gate Functions Coicidence Gating Enable and Inhibit Controls

Enable & Inhibit Controls

Enables Example 1 Example 2 Example 3 Example 4

Inhibits Example 5 Example 6 Example 7 Example 8

**Gating Logic - Functions - Coincidence - Controls**
Initial	By Functions	Multiple Inputs	Multiple Controls
Basic Gates	Gate Functions	Coicidence Gating	Enable and Inhibit Controls

**Enable & Inhibit Controls**
Enables	Example 1	Example 2	Example 3	Example 4
Inhibits	Example 5	Example 6	Example 7	Example 8

"Muti-Mode-Keyer" - Circuit Description, Schematics, Software

**Various Versions:**
Early - before 1973	Early - 1973	Current - with Arduino	Current - 44-Pin Cards	Current - 44Pin Cards & CPU
"Tri-Mode" Wire-Wrap (Transistorized)	"Tri-Mode" - TTL	Logic Module with Mega Timing	Logic_Module, & Timing_Module	Logic_Module & Timing_Module with CPU (extra inputs & control)

Next "Digital Lab" Pages:
=====================================================
DigitalLabs2 - Connective Gating of NAND's NOR's

DigitalLabs3 - Exclusive-OR Circuits

DigitalLabs4 - Data Latches & R-S Flip-Flops

DigitalLabs5 - J-K Flip-Flop Considerations

DigitalLabs6 - Timer Circuits - One-Shots/Single-Shots, Free-Running

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