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K6JCA
—•— —•••• •——— —•—• •—
Tuesday, January 24, 2012
New QSL Card!
Finally, a new QSL card:
(My design. Printed by
KB3IFH
).
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HF Band Conditions
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10 Meter Beacon
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500W HF PA
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813 AM Transmitter
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813 AM Transmitter - accessories
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AD8307
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Antenna Tuners: Reflection Analysis using Convolution
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Antenna Tuners: Smith Chart Tutorial
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ARC-5 -- Dynamotor Relubrication
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ARC-5 Receiver -- AC Power Supply
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ARC-5 Receiver -- BC-454-B
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Arduino
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Balun 3 Port Analysis
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Baluns
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Baluns: Characterizing Loss and C.M. Impedance
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Baluns: Effect of Characteristic Impedance on Zin
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Bass Guitar Painting Jig
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Bass Guitar: Building a Lefty Short-scale
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BC-454-B ARC-5 Receiver
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BK TL89F1
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Central Electronics 100V
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Class E/F Exciter
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Common-Mode Chokes
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Common-Mode Chokes: Removing VNA Port Capacitance from S11 Impedance Measurements
(1)
Common-Mode Chokes: Y21 Method vs S21 (G3TXQ)
(1)
Common-Mode Chokes: 3 Port Analysis
(1)
Common-mode Chokes: Calculating the Inductance of a Ferrite Toroid Inductor
(1)
Common-Mode Chokes: Power Dissipation vs Effectiveness
(1)
Common-Mode Chokes: S21 (G3TXQ) vs S11
(1)
Common-Mode Currents
(1)
Common-Mode Currents in Circuits
(1)
Common-Mode Currents on Two-Wire Transmission Lines
(1)
Converting an HP Counter to a Clock
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Convolution and Impedance Matching
(2)
Custom Front Panels
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Direct Sampling HF Transceiver
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Directional Bridge
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Directional Bridge vs Rsource and Rdetector
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Directional Couplers: Bird Wattmeter
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Directional Couplers: Bruene
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Directional Couplers: Building
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Directional Couplers: Calculating Flux Density
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Directional Couplers: Daiwa
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Directional Couplers: Monimatch
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Directional Couplers: Tandem-Match
(5)
Directional Couplers: Twin-Lead "Twin-Lamp" SWR Indicator
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DSL Modem/Router 5031NV
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DSL Modem/Router NVG510
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Dynamotor DM-32-A
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Field Strength Meter
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Fireside Type A Crystal Radio
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Flex 5000
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Fluke 6060B
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FPGA SDR HF Transceiver
(12)
Google WiFi
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GPS Disciplined-Oscillator
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Heathkit HR-10 Receiver
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Heathkit SB-220 Amplifier
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HP 16047A
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HP 1820-0092 Replacement
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HP 3314A
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HP 3438A
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HP 3478A
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HP 5216A
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HP 8503A
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HP 85046A
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HP 85046B
(2)
HP 8640B
(1)
Icom IC-725 Frequency Stability
(1)
IMD Uncertainty
(1)
Impedance Matching
(6)
Inductance Calculation of a Ferrite Toroidal Inductor
(1)
KW Atlanta Transceiver
(1)
L-Network: Complex Load to Real Zo
(1)
LM2596 - Counterfeit
(1)
LPi Antenna (QST Nov. 2023) -Unun Schematic Correction
(1)
LTV G-133 Receiver
(1)
Maxwell's "A Tutorial Dispelling Certain Misconceptions Concerning Wave Interference in Impedance Matching"
(1)
ME-165/G SWR & Power Meter
(1)
Morrow MB-565
(1)
Morrow MB-6
(1)
NanoVNA
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Networks: Comparing L to T
(1)
Networks: L
(1)
Networks: L-Network Design Equations
(1)
Networks: L-Network Design Equations for Lossy Networks
(1)
Networks: L-Network Equations for Any Impedance Transformation
(1)
Networks: Reflection and Transmission through a 2-port Network
(1)
Networks: Revisiting L-Network Design Constraints
(1)
Networks: T
(1)
PA IMD
(1)
Power and SWR Equations
(1)
PRC-47
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QRP Transceiver
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QSL Card
(1)
QST - LPi Antenna (Nov. 2023)
(1)
Quarter-wave Transformer
(1)
R-105/ARR-15 Receiver
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Raspberry PI
(3)
Relay Module - 1 Channel Opto-Isolated - from Amazon
(1)
Remote Operation
(1)
Repair Log: Fluke 6060B
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Repair Log: HP 3314A
(2)
Repair Log: HP 3438A
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Repair Log: HP 5216A
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Repair Log: HP 8640B
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Repair Log: Tek SC-502
(1)
Repair Log: Tek SC-504
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RF Power Meter
(1)
Rikstelefonen Type E.B. 21 Telephone
(1)
RLB Bridge vs Rsource and Rdetector
(1)
SDR-1000
(9)
Shack Pictures
(1)
Si5351
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SMD Prototyping
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Smith Charts: 3-D Data Plots
(1)
Smith Charts: Tutorial
(1)
Source Impedance vs SWR
(1)
SPICE
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SWR and Power Equations
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SWR and Voltage Equations
(1)
SWR vs Output Impedance
(1)
SWR vs Source Impedance
(1)
Tektronix SC502
(1)
Tektronix SC504
(1)
The Gang
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Theory
(3)
Transformers (at RF)
(1)
Transmission Line: 2-Port Network
(1)
Transmission Lines: Common-mode Currents
(1)
Transmission Lines: Input Impedance of Terminated Line
(1)
Transmission Lines: Zo Calculation from S11 Method 1: Zo=SQRT(Zsc*Zoc)
(1)
Transmission Lines: Zo Calculation from S11 Method 2: 1/8th Lambda
(1)
Transmission Lines: Zo Calculation from S11 Method 3: Circle of Constant SWR
(1)
Transmission-Line Transformers
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VNA
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VNA: 12-term Error Model
(1)
VNA: Thru De-embedding
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VNC
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Voltage and SWR Equations
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Walter Maxwell
(1)
Wave Mechanics of Transmission Lines
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Western Electric 211 Spacesaver Telephone
(1)
WRL Duo-Bander 84
(1)
WSPR
(3)
Y21 Impedance Measurement
(1)
Yaesu FT-1000D AGC Mods
(1)
K6JCA
...at the DeAnza swapmeet
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To reach me...
If you'd like to reach me, just send an email to:
jca1955
'at'
sbcglobal.net
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The Lab!
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