| 
				Selector switch | 
					 
					
						| Made of dark brown 
						Bakelite with crème coloured plastic. The crème coloured 
						knob can be used for volume control in steps. The Nedap 
						(N.V. Nederlandse Apparatenfabriek) 
						logo is printed on the switch; a PTT logo is visible on 
						the enclosure. The switch was made in the 1950s. It was 
						sold in 2022. | 
					 
					
						
						  | 
					 
					
						| Nedap was founded 
						in 1929 and is still active in technology worldwide. | 
					 
					
						
						On the 14th of April, 1924 the first 
						Dutch radio wire broadcasting organisation, Eerste Nederlandsche Radio Centrale 
						(ENRC) was founded. Five subscribers were connected. The 
						first programme broadcasted on the 21st of April, 1924 
						(Easter) was the Matthäus Passion by J.S. Bach; a direct 
						transmission coming from the St. Bavo Church in Haarlem.  
						The organisation was a big success. In 1929 ENRC had 3500 
						subscribers, and distribution points in the Zaanstreek, 
						and the cities of Amsterdam, Heiloo, Uitgeest, Alkmaar and 
						Deventer. | 
					 
					
						| In 
						the thirties popularity raised rapidly. Transmissions of 
						both Dutch radio 
						stations were distributed, as well as a dedicated wire 
						broadcast program. Shortly before the outbreak of WWII, 
						mobilisation messages were broadcast. | 
					 
					 
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						| 
						Many subscribers turned away at the beginning of the 
						war, as they didn't have any faith in a system that was 
						completely in the hands of the Germans. In the second 
						half of 1942, subscribers started using the system again 
						as gradually the curfews were introduced and radios were 
						being commandeered, starting in May 1943. | 
					 
					
						| 
						After the war the Dutch PTT invested a lot of money in 
						the system, but the introduction of FM radio and 
						increasing prosperity lead to a decrease in the number 
						of connections. A last attempt to save wire broadcasting 
						was a trail in The Hague.  | 
					 
					
						| 
						Distribution of television programs using the existing 
						infrastructure failed because of
						technical problems and the restriction of four programmes only.
						In 1964 
						the government decided to gradually abolish wire 
						broadcasting. The end came on January 31st, 1975, as the 
						last network in Delft fell into disuse. | 
					 
				 
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