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Charlie Morris ZL2CTM
Homebrew amateur radio 73's ZL2CTM
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283 videos
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13:14
40m CW Transceiver - Part 2b: Final Oscillator Configuration
1.4K views
2 months ago
21:27
40m CW Transceiver - Part 2a: Oscillator Design
1.6K views
2 months ago
20:20
40m CW Transceiver - Part 1: Thoughts and Ideas
2.2K views
3 months ago
11:47
40m Pelican Case SSB Radio - Part 10: RF PA and LPF
2.2K views
11 months ago
16:52
40m Pelican Case SSB Radio - Part 9: RF PA Plan
1.3K views
1 year ago
19:34
40m Pelican Case SSB Radio - Part 8: Microphone Amplifier, RC LPF, Transmit
1.3K views
1 year ago
28:19
40m Pelican Case SSB Radio - Part 7: Receiver Tests, VFO/BFO
1.8K views
1 year ago
19:33
40m Pelican Case SSB Radio - Part 6: RF Amplifier
3.1K views
1 year ago
8:41
40m Pelican Case SSB Radio - Part 5: Band-pass Filters
2.5K views
1 year ago
6:20
40m Pelican Case SSB Radio - Part 4: Audio Amplifier
1.2K views
1 year ago
15:40
40m Pelican Case SSB Radio - Part 3: LCD Display, RF Amps Topology
2.1K views
1 year ago
15:20
40m Pelican Case SSB Radio - Part 2: Layout, Topology
1.9K views
1 year ago
16:51
40m Pelican Case SSB Radio - Part 1: Thoughts and Ideas
2.5K views
1 year ago
26:51
AM Radio - Part 5 Detector, AF Amp, On Air Test
5.1K views
1 year ago
12:47
AM Radio - Part 4 IF Amps and First Receive Tests
3.7K views
1 year ago
6:56
AM Radio - Part 3 Low-Pass Filter
3K views
1 year ago
12:00
AM Radio - Part 2b Buffer Amplifier
2.5K views
1 year ago
21:51
AM Radio - Part 2a Franklin Oscillator
6.6K views
1 year ago
7:34
AM Radio - Part 1 Thoughts and Ideas
3.4K views
1 year ago
11:23
Digital Modes Radio - Part 2: Initial Software Transmit Tests
2.8K views
2 years ago
18:00
Digital Modes Radio - Part 1: Thoughts and Ideas
3.1K views
2 years ago
16:15
Update on Projects and Ideas for Future Builds
2.4K views
2 years ago
10:46
Homebrew 80m/40m SSB/CW Rig - Part 8: First On-Air Contact
8.2K views
3 years ago
24:59
Homebrew 80m/40m SSB/CW Rig - Part 7: Receiver Tests
31K views
3 years ago
14:01
Homebrew 80m/40m SSB/CW Rig - Part 6: IF Amps and Coupling Transformers
5.9K views
3 years ago
15:51
Homebrew 80m/40m SSB/CW Rig - Part 5: Crystal Filters
8.4K views
3 years ago
20:44
Homebrew 80m/40m SSB/CW Rig - Part 4: Band Pass Filters
8.1K views
3 years ago
13:02
Homebrew 80m/40m SSB/CW Rig - Part 3: Mic Amplifier
2.6K views
3 years ago
18:08
Homebrew 80m/40m SSB/CW Rig - Part 2: Audio Amplifier
3.9K views
3 years ago
12:41
Homebrew 80m/40m SSB/CW Rig - Part 1: Thoughts and Ideas
6.1K views
3 years ago
8:41
2022 Update on Up and Coming Projects
2.9K views
3 years ago
16:27
Current Projects and Thoughts and Ideas for the Next Build
3.7K views
4 years ago
12:57
This and That: More homebrew experiments.
4.3K views
4 years ago
10:33
HF Digital Modes Radio: Part 1 - Thoughts and Ideas
2.7K views
4 years ago
7:55
New Zealand - Australia QRP Contact
2.6K views
4 years ago
22:15
Simple AGC Experiments
6.3K views
4 years ago
16:26
Simple SSB Rig: Part 10a - RF Power Amplifier Changes
5.2K views
4 years ago
26:38
Simple SSB Rig: Part 10 - RF Power Amplifier, First On-Air Contacts
6K views
4 years ago
16:44
Simple SSB Rig: Part 9 - Mic Amp, Low Power Transmit Test
5.2K views
4 years ago
9:13
Simple SSB Rig: Part 8 - Receiver On Air Test
7.2K views
4 years ago
10:42
Simple SSB Rig: Part 7 - Bandpass Filter
10K views
5 years ago
19:09
Simple SSB Rig: Part 6 - IF Amplifiers
7.7K views
5 years ago
23:27
Simple SSB Rig: Part 5a - Mixer Experiments
9.1K views
5 years ago
14:45
Simple SSB Rig: Part 5 - Mixers
10K views
5 years ago
9:32
Simple SSB Rig: Part 4 - Audio Amplifier
5.5K views
5 years ago
12:14
Simple SSB Rig: Part 3 - Crystal Filter
15K views
5 years ago
20:47
Simple SSB Rig: Part 2 - VFO, Arduino Code, Si5351 Calibration
25K views
5 years ago
3:45
End Fed Half Wave Antenna Tuner: Part 3 - Field Demonstration
3.2K views
5 years ago
20:16
Simple SSB Rig: Part 1 - Thoughts and Ideas
9.7K views
5 years ago
4:14
End Fed Half Wave Antenna Tuner: Part 2 - Final Configuration
6.1K views
5 years ago
21:35
End Fed Half Wave Antenna Tuner: Part 1 - Initial Build
10K views
5 years ago
15:12
AM Modulator Experiments
3.5K views
5 years ago
6:44
Thoughts and Ideas for the Next Build
1.1K views
5 years ago
12:01
Go QRP SSB Rig: Part 7 - LPF and First On Air Contacts
3.4K views
5 years ago
14:15
Go QRP SSB Rig: Part 6 - RF Power Amplifier
7.2K views
5 years ago
9:56
Go QRP SSB Rig: Part 5 - Low Power Transmit, Si5351 Calibration, Filter Impedance
2.7K views
5 years ago
20:09
Go QRP SSB Rig: Part 4 - Receive-Transmit Switching, Mic Amp
2.1K views
5 years ago
6:50
Go QRP SSB Rig: Part 3 - LM386 versus LM380 Audio Amplifiers
3.8K views
5 years ago
6:13
Go QRP SSB Rig: Part 2 - Simple Superhet Receiver Test
3.6K views
5 years ago
10:31
Go QRP SSB Rig: Part 1 - Thoughts and Ideas
2.6K views
5 years ago
12:52
Digital Modes Rig - Part 4 RF Splitter/Combiner
3.2K views
5 years ago
8:34
Simple Computer to Radio Interface for Digital Modes
20K views
5 years ago
6:56
Digital Modes Rig - Part 3 Initial Receive/Transmit Tests
1.9K views
5 years ago
7:15
Digital Modes Rig - Part 2a USB Audio + Serial
1.5K views
5 years ago
22:08
Digital Modes Rig - Part 2 Working CAT Software Code
1.8K views
5 years ago
15:15
Digital Modes Rig - Part 1 Design Thoughts
9.7K views
5 years ago
8:07
FT8 Transceiver - Part 1: Ideas
2.1K views
5 years ago
10:19
Thoughts and Ideas for the Next Build
1.5K views
5 years ago
4:56
Shortwave AM Receiver. Part 6: Infinite Impedance Detector
3.3K views
5 years ago
19:11
Shortwave AM Receiver. Part 5: BPF, RF Amp, IF Amp, AM Detector
2.8K views
5 years ago
4:07
Shortwave AM Receiver. Part 4: Brief Update
1.9K views
5 years ago
25:27
Shortwave AM Receiver. Part 3: VFO
4.1K views
5 years ago
9:23
Shortwave AM Receiver. Part 1: Thoughts and Ideas
2.8K views
5 years ago
5:44
CW Rig. Part 6 - Final Transceiver Configuration
3.1K views
5 years ago
24:45
CW Rig. Part 5 - Class E RF Amplifier
9.5K views
5 years ago
21:51
CW Rig. Part 4 - Initial Class E Amplifier Experiments
6.9K views
5 years ago
20:02
CW Rig. Part 3 - Final Receiver Config, PA Ideas
2.6K views
5 years ago
31:35
CW Rig. Part 2 - IF Amps, Superhet Receiver
4.5K views
5 years ago
24:32
CW Rig. Part 1 - Homebrew CW Crystal Filter
11K views
5 years ago
13:43
Simple Homebrew DSB-SC 80m 40m Rig: Part 6 - Mic Amp and Low Power Transmit
2.1K views
5 years ago
9:43
Simple Homebrew DSB-SC 80m 40m Rig: Part 5 - Receiver Test
2.9K views
5 years ago
19:29
Simple Homebrew DSB-SC 80m 40m Rig: Part 4 - Antenna RF Amplifier
2.8K views
5 years ago
33:47
Circuit Board Construction
3.2K views
5 years ago
25:59
New Zealand Jock White Memorial Field Day Contest
1K views
5 years ago
15:54
Simple Homebrew DSB-SC 80m 40m Rig: Part 3 - Mixer
4.5K views
5 years ago
34:17
Simple Homebrew DSB-SC 80m 40m Rig: Part 2b - VFO Arduino Software
4.4K views
5 years ago
18:38
Simple Homebrew DSB-SC 80m 40m Rig: Part 2a - Si5351 Wiring and Calibration
2.1K views
6 years ago
29:33
Simple Homebrew DSB-SC 80m 40m Rig: Part 1 - Audio Amplifier
2K views
6 years ago
11:26
Simple Homebrew DSB-SC 80m 40m Rig
2.7K views
6 years ago
24:25
Homebrew 80m/40m Base CW Rig. Part 1 - Block Diagram
1.7K views
6 years ago
9:57
Thoughts and Ideas for a Base CW Rig
1K views
6 years ago
9:22
Ideas for an old Kenwood TS-120V
9.2K views
6 years ago
16:19
Homebrew 80m Portable SSB Rig Operation in the Back Yard
2K views
6 years ago
8:39
Homebrew Portable 40m SSB QRP Rig. Part 8: Field Use
2K views
6 years ago
23:10
Homebrew Portable 40m SSB QRP Rig. Part 7: First On Air Contact
3.6K views
6 years ago
29:28
Homebrew Portable 40m SSB QRP Rig. Part 6: RF PA Driver
2.7K views
6 years ago
5:22
Homebrew Portable 40m SSB QRP Rig. Part 5: Receiver Complete
2.7K views
6 years ago
15:28
Homebrew Portable 40m SSB QRP Rig. Part 4: Microphone Amp
1.7K views
6 years ago
22:53
Homebrew Portable 40m SSB QRP Rig. Part 3: Superhet Receiver
4.6K views
6 years ago
14:19
Homebrew Portable 40m SSB QRP Rig. Part 2a: More Antenna Amp Experiments
2.1K views
6 years ago
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