Charlie Morris ZL2CTM - Channel

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Charlie Morris ZL2CTM

Homebrew amateur radio 73's ZL2CTM

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283 videos

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40m CW Transceiver - Part 2b: Final Oscillator Configuration

1.4K views
2 months ago

40m CW Transceiver - Part 2a: Oscillator Design

1.6K views
2 months ago

40m CW Transceiver - Part 1: Thoughts and Ideas

2.2K views
3 months ago

40m Pelican Case SSB Radio - Part 10: RF PA and LPF

2.2K views
11 months ago

40m Pelican Case SSB Radio - Part 9: RF PA Plan

1.3K views
1 year ago

40m Pelican Case SSB Radio - Part 8: Microphone Amplifier, RC LPF, Transmit

1.3K views
1 year ago

40m Pelican Case SSB Radio - Part 7: Receiver Tests, VFO/BFO

1.8K views
1 year ago

40m Pelican Case SSB Radio - Part 6: RF Amplifier

3.1K views
1 year ago

40m Pelican Case SSB Radio - Part 5: Band-pass Filters

2.5K views
1 year ago

40m Pelican Case SSB Radio - Part 4: Audio Amplifier

1.2K views
1 year ago

40m Pelican Case SSB Radio - Part 3: LCD Display, RF Amps Topology

2.1K views
1 year ago

40m Pelican Case SSB Radio - Part 2: Layout, Topology

1.9K views
1 year ago

40m Pelican Case SSB Radio - Part 1: Thoughts and Ideas

2.5K views
1 year ago

AM Radio - Part 5 Detector, AF Amp, On Air Test

5.1K views
1 year ago

AM Radio - Part 4 IF Amps and First Receive Tests

3.7K views
1 year ago

AM Radio - Part 3 Low-Pass Filter

3K views
1 year ago

AM Radio - Part 2b Buffer Amplifier

2.5K views
1 year ago

AM Radio - Part 2a Franklin Oscillator

6.6K views
1 year ago

AM Radio - Part 1 Thoughts and Ideas

3.4K views
1 year ago

Digital Modes Radio - Part 2: Initial Software Transmit Tests

2.8K views
2 years ago

Digital Modes Radio - Part 1: Thoughts and Ideas

3.1K views
2 years ago

Update on Projects and Ideas for Future Builds

2.4K views
2 years ago

Homebrew 80m/40m SSB/CW Rig - Part 8: First On-Air Contact

8.2K views
3 years ago

Homebrew 80m/40m SSB/CW Rig - Part 7: Receiver Tests

31K views
3 years ago

Homebrew 80m/40m SSB/CW Rig - Part 6: IF Amps and Coupling Transformers

5.9K views
3 years ago

Homebrew 80m/40m SSB/CW Rig - Part 5: Crystal Filters

8.4K views
3 years ago

Homebrew 80m/40m SSB/CW Rig - Part 4: Band Pass Filters

8.1K views
3 years ago

Homebrew 80m/40m SSB/CW Rig - Part 3: Mic Amplifier

2.6K views
3 years ago

Homebrew 80m/40m SSB/CW Rig - Part 2: Audio Amplifier

3.9K views
3 years ago

Homebrew 80m/40m SSB/CW Rig - Part 1: Thoughts and Ideas

6.1K views
3 years ago

2022 Update on Up and Coming Projects

2.9K views
3 years ago

Current Projects and Thoughts and Ideas for the Next Build

3.7K views
4 years ago

This and That: More homebrew experiments.

4.3K views
4 years ago

HF Digital Modes Radio: Part 1 - Thoughts and Ideas

2.7K views
4 years ago

New Zealand - Australia QRP Contact

2.6K views
4 years ago

Simple AGC Experiments

6.3K views
4 years ago

Simple SSB Rig: Part 10a - RF Power Amplifier Changes

5.2K views
4 years ago

Simple SSB Rig: Part 10 - RF Power Amplifier, First On-Air Contacts

6K views
4 years ago

Simple SSB Rig: Part 9 - Mic Amp, Low Power Transmit Test

5.2K views
4 years ago

Simple SSB Rig: Part 8 - Receiver On Air Test

7.2K views
4 years ago

Simple SSB Rig: Part 7 - Bandpass Filter

10K views
5 years ago

Simple SSB Rig: Part 6 - IF Amplifiers

7.7K views
5 years ago

Simple SSB Rig: Part 5a - Mixer Experiments

9.1K views
5 years ago

Simple SSB Rig: Part 5 - Mixers

10K views
5 years ago

Simple SSB Rig: Part 4 - Audio Amplifier

5.5K views
5 years ago

Simple SSB Rig: Part 3 - Crystal Filter

15K views
5 years ago

Simple SSB Rig: Part 2 - VFO, Arduino Code, Si5351 Calibration

25K views
5 years ago

End Fed Half Wave Antenna Tuner: Part 3 - Field Demonstration

3.2K views
5 years ago

Simple SSB Rig: Part 1 - Thoughts and Ideas

9.7K views
5 years ago

End Fed Half Wave Antenna Tuner: Part 2 - Final Configuration

6.1K views
5 years ago

End Fed Half Wave Antenna Tuner: Part 1 - Initial Build

10K views
5 years ago

AM Modulator Experiments

3.5K views
5 years ago

Thoughts and Ideas for the Next Build

1.1K views
5 years ago

Go QRP SSB Rig: Part 7 - LPF and First On Air Contacts

3.4K views
5 years ago

Go QRP SSB Rig: Part 6 - RF Power Amplifier

7.2K views
5 years ago

Go QRP SSB Rig: Part 5 - Low Power Transmit, Si5351 Calibration, Filter Impedance

2.7K views
5 years ago

Go QRP SSB Rig: Part 4 - Receive-Transmit Switching, Mic Amp

2.1K views
5 years ago

Go QRP SSB Rig: Part 3 - LM386 versus LM380 Audio Amplifiers

3.8K views
5 years ago

Go QRP SSB Rig: Part 2 - Simple Superhet Receiver Test

3.6K views
5 years ago

Go QRP SSB Rig: Part 1 - Thoughts and Ideas

2.6K views
5 years ago

Digital Modes Rig - Part 4 RF Splitter/Combiner

3.2K views
5 years ago

Simple Computer to Radio Interface for Digital Modes

20K views
5 years ago

Digital Modes Rig - Part 3 Initial Receive/Transmit Tests

1.9K views
5 years ago

Digital Modes Rig - Part 2a USB Audio + Serial

1.5K views
5 years ago

Digital Modes Rig - Part 2 Working CAT Software Code

1.8K views
5 years ago

Digital Modes Rig - Part 1 Design Thoughts

9.7K views
5 years ago

FT8 Transceiver - Part 1: Ideas

2.1K views
5 years ago

Thoughts and Ideas for the Next Build

1.5K views
5 years ago

Shortwave AM Receiver. Part 6: Infinite Impedance Detector

3.3K views
5 years ago

Shortwave AM Receiver. Part 5: BPF, RF Amp, IF Amp, AM Detector

2.8K views
5 years ago

Shortwave AM Receiver. Part 4: Brief Update

1.9K views
5 years ago

Shortwave AM Receiver. Part 3: VFO

4.1K views
5 years ago

Shortwave AM Receiver. Part 1: Thoughts and Ideas

2.8K views
5 years ago

CW Rig. Part 6 - Final Transceiver Configuration

3.1K views
5 years ago

CW Rig. Part 5 - Class E RF Amplifier

9.5K views
5 years ago

CW Rig. Part 4 - Initial Class E Amplifier Experiments

6.9K views
5 years ago

CW Rig. Part 3 - Final Receiver Config, PA Ideas

2.6K views
5 years ago

CW Rig. Part 2 - IF Amps, Superhet Receiver

4.5K views
5 years ago

CW Rig. Part 1 - Homebrew CW Crystal Filter

11K views
5 years ago

Simple Homebrew DSB-SC 80m 40m Rig: Part 6 - Mic Amp and Low Power Transmit

2.1K views
5 years ago

Simple Homebrew DSB-SC 80m 40m Rig: Part 5 - Receiver Test

2.9K views
5 years ago

Simple Homebrew DSB-SC 80m 40m Rig: Part 4 - Antenna RF Amplifier

2.8K views
5 years ago

Circuit Board Construction

3.2K views
5 years ago

New Zealand Jock White Memorial Field Day Contest

1K views
5 years ago

Simple Homebrew DSB-SC 80m 40m Rig: Part 3 - Mixer

4.5K views
5 years ago

Simple Homebrew DSB-SC 80m 40m Rig: Part 2b - VFO Arduino Software

4.4K views
5 years ago

Simple Homebrew DSB-SC 80m 40m Rig: Part 2a - Si5351 Wiring and Calibration

2.1K views
6 years ago

Simple Homebrew DSB-SC 80m 40m Rig: Part 1 - Audio Amplifier

2K views
6 years ago

Simple Homebrew DSB-SC 80m 40m Rig

2.7K views
6 years ago

Homebrew 80m/40m Base CW Rig. Part 1 - Block Diagram

1.7K views
6 years ago

Thoughts and Ideas for a Base CW Rig

1K views
6 years ago

Ideas for an old Kenwood TS-120V

9.2K views
6 years ago

Homebrew 80m Portable SSB Rig Operation in the Back Yard

2K views
6 years ago

Homebrew Portable 40m SSB QRP Rig. Part 8: Field Use

2K views
6 years ago

Homebrew Portable 40m SSB QRP Rig. Part 7: First On Air Contact

3.6K views
6 years ago

Homebrew Portable 40m SSB QRP Rig. Part 6: RF PA Driver

2.7K views
6 years ago

Homebrew Portable 40m SSB QRP Rig. Part 5: Receiver Complete

2.7K views
6 years ago

Homebrew Portable 40m SSB QRP Rig. Part 4: Microphone Amp

1.7K views
6 years ago

Homebrew Portable 40m SSB QRP Rig. Part 3: Superhet Receiver

4.6K views
6 years ago

Homebrew Portable 40m SSB QRP Rig. Part 2a: More Antenna Amp Experiments

2.1K views
6 years ago

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