HOW TO MAKE A VERTICAL HIGH PERFORMANCE TELEGRAPH SPEED KEY

by W R SMITH

This key stands 7-1/4” tall, has a 3” x 3-3/4” x 3/4” thick brass base and is nickel plated. It will be one of the best performing keys that you own and you can take great pride in having built one of the world’s most unusual speed keys.

It has no dot contact post, no dot spring on the weight rod and no silver contacts. Instead, there is a collet on the weight rod that has a strong magnet bonded on its bottom. This magnet passes over a reed switch mounted in a 5/32”OD brass tube and closes it to make dots for the transmitter. The avoidance of friction from the normal dot spring and its silver contacts is why the key usually makes such an unbelievable number of dots. All other components of a normal speed key are present. The book is 60 pages, 8-1/2 x 11 and is spiral bound. It contains drawings and 145 color photographs of the step by step construction to guide the builder.

Those who have HOW TO RESTORE TELEGRAPH KEYS will find it a great adjunct to this book.

£      p

49. 60

For USA customers this book

can be obtained from