4. BASIC MAGNETO TELEPHONE. 4.1 For economy, the speaking and signal ling circuits are combined eo that their separate currents are trangmitted to the exchange and digtant telephone over the game pair of wires. Fig. shows the basic circuit used in the type 135 telephone (Pig. 5b) which iB typical cf the early type magneto telephones. The dry cells for the trans— mitter operation are mounted.. TELEPHONE HISTORY MAGNETO TELEPHONE CIRCUITS
Telephone Collectors International - The goal of the organization is "to educate the public, as well as the members of the Corporation, regarding the history of telephony, the value of old telephones and related items, their collectability and preservation; to research telephone history and publish and provide literature thereon; to promote the public exhibition of old telephones and related.. Different manufacturers employ various methods of wiring bridging telephone sets, each having some special qualification. The one here shown is common to a number of good systems and should be closely studied by the amateur. Nearly all dealers supply customers with working diagrams when same are requested.