Tri-Mode Buffer Amplifier Box
- The TMB-1 is an RF amplifier unit / receiving accessory that can be used with a low-impedance broadband loop, a high-impedance terminated loop (such as a Pennant, Flag, or Kaz Delta), and whip (telescoping rod) antennas.
Phonetic Alphabets, Historic, English & Others
- Phonetic Alphabet Historic, English and Others. Foreign NATO Morse Telegraph Code Abbreviations Q X Z Procedures CB Police Marine Army Navy Heliograph SINFO SINPFEMO Signals WW1 WW2
A Two-Way Morse Practice Set
- The system consists of a pair of Morse practice oscillators connected by a piece of two-conductor cable. Pressing the key on one unit produces a sound in both units by Peter Parker VK3YE -