FeTap-79

In the early 1970s, Siemens, Krone and Hagenuk, in cooperation with the German Federal Post Office (DBP), developed the telephone series 7 (FeTap 7xx) as a replacement for the series 6 (FeTap 6xx). The first telephones with the code FeTap 71,73,75 had a keypad and not a dial. All devices were identical in construction. The different code referred to the method by which the telephone call was made. The FeTap 71 telephones were for telephone exchanges that supported multi-frequency dialing, (MFV) and were supported by the keyboard with the code TWB71. The FeTap 73 telephone supported two-way dialing, (DG) and was supported by the keyboard with the code TWB73 and finally the FeTap 75 pulse dialing, (IWV) and was supported by the keyboard with the code TWB75. The designers who worked on this particular model were mainly Tonis Kao and Herbert Kramer. The first telephones began to reach subscribers in the mid-1970s in four basic colors: green, orange, burgundy and beige. They were easy to maintain since they consisted of only three parts: the ringing set, the circuit board and the dialing keypad. A revolution for technicians who could repair faults within minutes by changing one of the three parts. Because the Germans wanted to avoid a mass replacement of old devices by Federal Post subscribers, given that such an action would be very costly, they decided to put the FeTap 79 model on the production line. Structurally identical to the previous models in terms of construction, circuit board and appearance. The only difference was that there was a selection disc instead of a keyboard. In addition to the four basic colors, there were two more in imitation marble in red and green shades.