WOODEN KEY-PAD PHONE ( ART 11-104867-002.02 ) GFELLER / PTT-TRUB (1986) ************************************************************************* The IC/Trans. KEY-PAD generates simulated PULSE DIAL (!) NOT DTMF (*) ------------------------------------------------------------------------- Text adapted from »ICONIC-Antiques« / Bristol, UK ... ***************************************************** < iconic-antiques.com > "1970s Gfeller Trub Wood Telephone, made by Gfeller, Bern Switzerland, 1977, often referred to as the 'King of Phones', was fashioned from a single piece of hardwood and available in 3 grains; Rosewood, Cherry and Maple. Originating from the Gfeller company of Switzerland in the early 70's, the combination of sleek, streamlined styling and solid hardwood with a pronounced grain make it a real pleasure to handle. The offset matt gold buttons and modern typeface work in complete harmony with the phones modern lines ... The Gfeller Trub achieved cult status in the late 1980s, especially in Britain with most now hidden away in private collections. The Trub phone has been entered into the Museum of Applied Arts and Sciences (MAAS) in Australia in recognition of its enduring design and unique use of materials." R E M A R K S : (R)-Key = "REPEAT" (= send LAST NUMBER again ) (O)-Key = "E-Key" (= Hold/Transfer)-Option ========================================================================= A LOOK INSIDE: This is a SWISS-Telephone !!! It is NOT WORKING with a GERMAN SOCKET, You need an ADAPTER-CABLE ... 1st) R E M A R K S to the (! not symmetric !) SWISS-CONNECTION ... ************************************************************************* The LEFT DIAGRAM counts CONTACT 1...6 of the "BIG" WESTERN-"Line"-Socket, RIGHT DIAGRAM counts CONTACT 1...4 to the "normal" WESTERN-"4"-Socket: in "normal" 4-Notation: ==================== USA: a = (2), b = (3) TELEKOM: a = (1), b = (4) SWISS: a = (1), b = (2) to activate the TRUB-RINGER, you have to connect a = W (1 = 3) 2nd) R E M A R K S : HAND-SET-CONNECTIONS with SMALL-WESTERN-4-Pin-Plug: ************************************************************************* TELEKOM = USA (1 & 4) = Microphone- SWISS (1 & 3) = Microphone-Capsule (2 & 3) = Telephone- (2 & 4) = Telephone-Capsule PTT-TRUB E X P E R I M E N T ... Historical Remarks ... ========================================================================= (*) This vintage KEY-PAD TELEPHONE use "PULSE-DIALING". To make it work in your application, YOU MAY NEED A "PULSE-TO-TONE-CONVERTER"... impressum: ************************************************************************* © C.HAMANN http://public.BHT-Berlin.de/hamann 09/12/22 |