British Army Morse Key Trainer

Made by Irwin Desman Ltd. in England, NSN 6940-99-219-2848. These keys were used by the MOD in the training of new radio operators. The unit uses 2 standard 9 Volt PP3 Batteries. Built in sounder with external speaker jack. Has Tone and Volume adjustment controls. Morse key is fully adjustable and is of sturdy metal construction.