Skip to content

Library / Engineering & Technology / Wireless Telegraphy and Telephony Simply Explained / Braille

Wireless Telegraphy and Telephony Simply Explained ⠃⠗⠋ braille edition

Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.

Download .brf — Grade 2 Download .brf — Grade 1 Plain-text reader .txt

279,574 braille cells · 299 embossed pages at 40×25 · 686 unrepresentable characters omitted

⠏⠓⠁⠝⠞⠕⠍⠀⠋⠕⠗⠍⠑⠙⠀⠃⠽⠀⠁⠀⠉⠕⠊⠇⠀⠕⠋⠀⠺⠊⠗⠑⠀
⠉⠁⠗⠗⠽⠊⠝⠛⠀⠉⠥⠗⠗⠑⠝⠞⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀
⠼⠉⠙⠲⠤⠤⠰⠠⠙⠊⠁⠛⠗⠁⠍⠀⠕⠋⠀⠊⠝⠙⠥⠉⠞⠊⠕⠝⠀⠉⠕⠊⠇⠲⠀⠀⠀⠀
⠠⠋⠊⠛⠲⠀⠼⠉⠑⠲⠤⠤⠰⠠⠊⠝⠙⠥⠉⠞⠊⠕⠝⠀⠉⠕⠊⠇⠀⠋⠕⠗⠀
⠺⠊⠗⠑⠇⠑⠎⠎⠀⠞⠑⠇⠑⠛⠗⠁⠏⠓⠀⠏⠥⠗⠏⠕⠎⠑⠎⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀
⠼⠉⠋⠲⠤⠤⠰⠠⠊⠝⠙⠥⠉⠞⠊⠕⠝⠀⠉⠕⠊⠇⠀⠏⠗⠊⠍⠁⠗⠽⠀⠁⠝⠙⠀
⠎⠑⠉⠕⠝⠙⠁⠗⠽⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀⠼⠉⠛⠲⠤⠤⠰⠠⠊⠝⠞⠑⠗⠗⠥⠏⠞⠑⠗⠀
⠋⠕⠗⠀⠊⠝⠙⠥⠉⠞⠊⠕⠝⠀⠉⠕⠊⠇⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀
⠼⠉⠓⠲⠤⠤⠰⠠⠑⠇⠑⠉⠞⠗⠕⠇⠽⠞⠊⠉⠀⠊⠝⠞⠑⠗⠗⠥⠏⠞⠑⠗⠲⠀⠀⠀⠀
⠠⠋⠊⠛⠲⠀⠼⠉⠊⠲⠤⠤⠠⠕⠏⠑⠝⠀⠁⠝⠙⠀⠉⠇⠕⠎⠑⠙⠀⠉⠕⠗⠑⠀
⠞⠗⠁⠝⠎⠋⠕⠗⠍⠑⠗⠎⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀⠼⠙⠚⠲⠤⠤⠠⠇⠊⠝⠑⠎⠀
⠗⠑⠏⠗⠑⠎⠑⠝⠞⠊⠝⠛⠀⠙⠊⠗⠑⠉⠞⠀⠁⠝⠙⠀⠊⠝⠞⠑⠗⠍⠊⠞⠞⠑⠝⠞⠀
⠙⠊⠗⠑⠉⠞⠀⠉⠥⠗⠗⠑⠝⠞⠎⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀
⠼⠙⠁⠲⠤⠤⠰⠠⠙⠊⠁⠛⠗⠁⠍⠀⠗⠑⠏⠗⠑⠎⠑⠝⠞⠊⠝⠛⠀⠁⠇⠞⠑⠗⠝⠁⠞⠊⠝⠛
⠀⠉⠥⠗⠗⠑⠝⠞⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀⠼⠙⠃⠲⠤⠤⠰⠠⠓⠊⠛⠓⠀
⠏⠕⠞⠑⠝⠞⠊⠁⠇⠀⠓⠥⠍⠍⠊⠝⠛⠀⠞⠗⠁⠝⠎⠋⠕⠗⠍⠑⠗⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀
⠼⠙⠉⠲⠤⠤⠰⠠⠓⠊⠛⠓⠀⠏⠕⠞⠑⠝⠞⠊⠁⠇⠀⠉⠇⠕⠎⠑⠙⠀⠉⠕⠗⠑⠀
⠞⠗⠁⠝⠎⠋⠕⠗⠍⠑⠗⠀⠋⠕⠗⠀⠺⠊⠗⠑⠇⠑⠎⠎⠀⠺⠕⠗⠅⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀
⠼⠙⠙⠲⠤⠤⠠⠇⠑⠽⠙⠑⠝⠀⠚⠁⠗⠀⠎⠑⠞⠀⠋⠕⠗⠀⠕⠊⠇⠀⠊⠍⠍⠑⠗⠎⠊⠕⠝⠲
⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀⠼⠙⠑⠲⠤⠤⠠⠕⠊⠇⠀⠊⠍⠍⠑⠗⠎⠑⠙⠀⠉⠕⠝⠙⠑⠝⠎⠑⠗⠲
⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀⠼⠙⠋⠲⠤⠤⠰⠠⠙⠊⠁⠛⠗⠁⠍⠀⠎⠓⠕⠺⠊⠝⠛⠀
⠉⠕⠝⠎⠞⠗⠥⠉⠞⠊⠕⠝⠀⠕⠋⠀⠉⠕⠝⠙⠑⠝⠎⠑⠗⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀
⠼⠙⠛⠲⠤⠠⠞⠥⠃⠥⠇⠁⠗⠀⠉⠕⠝⠙⠑⠝⠎⠑⠗⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀
⠼⠙⠓⠲⠤⠤⠰⠠⠓⠑⠇⠊⠭⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀⠼⠙⠊⠲⠤⠤⠰⠠⠉⠇⠕⠎⠑⠀
⠉⠕⠥⠏⠇⠑⠙⠀⠓⠑⠇⠊⠭⠲⠀⠀⠀⠀⠠⠋⠊⠛⠲⠀⠼⠑⠚⠲⠤⠤⠠⠎⠏⠁⠗⠅⠀

These are the same pages the .brf download embosses — form-feed breaks and all. BRF opens in braille software (Duxbury, BrailleBlaster), on embossers, and on refreshable displays.