Wurlitzer Jukeboxes & Wallboxes im Archiv von Jukebox-World |
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Anmerkungen zu Wurlitzer Fernwählern und Stepper |
Copyright |
Informationen von
Axel Rosenberger und Jens Hultgren |
Wireless Systeme bei Fernwählern der 40er Jahre | Wireless systems in 1940s wallboxes | |
Hierbei handelt es sich nicht um eine richtige
Funkübertragung. Funktioniert hat das System im Grunde wie heute die
Babyphone: "Wireless" bedeutet hier also, dass es keiner direkten Verkabelung zwischen Wallbox(en) und Jukebox bedurfte, was für viele Lokale sicher ein gutes Argument war sich doch auf eine Wallboxanlage einzulassen, denn man kann sich ja vorstellen, dass mancher Lokalbesitzer keinen Kabelsalat in seinem Gastraum haben wollte. Bei uns hier funktioniert "wireless" zwar auch, bedarf aber einiger "Anpassungen", denn bei uns befindet sich zwischen Wallbox und unserer Netzleitung (230V) und auch vor der Jukebox ein Vorschalttrafo. Sowohl Wurlitzer als auch Seeburg
hatten parallel zu den Wireless-Wallboxsystemen noch ein weiteres Wireless-System,
um Wandlautsprecher mit Musik "über die Steckdose" zu versorgen. Ich habe einmal bei einem Sammler im Süden Arizonas einen
Wireless-Lautsprecher an einer W950 erleben dürfen:
vor 1941
Wireless:
1946 bis 1949
Anmerkungen:
Die Systeme 3xx und 1xx unterscheiden sich durch die Pulsfrequenzen
zwischen Wallbox und Stepper. Eine 120er oder 125er Wallbox erzeugt die Wahlimpulse: tack, tack, tack, tack und auch in dieser Geschwindigkeit folgt der Stepper 145. Aus diesem Grund ist es so, daß man an einen 304 Stepper (langsam) keinen Fernwähler 120 oder 125 (schnell) anschließen kann, denn der Stepper ist mechanisch nicht in der Lage diesen schnell aufeinander folgenden Wallboximpulsen zu folgen.
Andererseits kann man sehr wohl eine Barbox 331 oder den 320 "Sweet Music"
Fernwähler an einen 145er Stepper anschließen. |
This is not a real radio transmission.
The system basically worked in the same way as baby monitors do today: In this case, "wireless" means that there was no need for a direct cabling between the wallbox(es) and the jukebox, which was for sure a good argument for many pubs to go for a wallbox system; because you might be able to imagine that some pub owners didn't want to have a tangle of cables in their location. Wireless also works for us here, but requires some "adjustments", because we have a step down transformer between the wallbox and our mains cable (230V) and also before the power supply of jukebox. Both Wurlitzer and Seeburg offered
parallel to this wireless wallbox system an extra wireless system to supply
extra wall speakers with music "via the outlet". I once experienced a wireless speaker
connected to a W950 at a collector in Southern Arizona: Before 1941:
Wireless:
1946 to 1949
Notes:
The 3xx and 1xx systems differ in the pulse frequencies
between the wallbox and stepper. A 120 or 125 wallbox generates the pulses: tack, tack, tack, tack and stepper 145 also follows at this speed.
For this reason, it is not possible to connect a wallbox
120 or 125 (fast) to a stepper 304 (slow), because the stepper is not
mechanically able to follow these fast consecutive wallbox pulses.
On the other hand, you can very well connect a Barbox 331
or the 320 "Sweet Music" Wallbox to a stepper 145. |
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Information by Jens Hultgren | ||
Steppers & wallbox id numbers are a common
source for confusion. This is especially true for Wurlitzer. There are many
units that are not mentioned in the manuals or the sales brochures. The correct
information has to be gathered from many sources - besides the manuals and
brochures, the service bulletins are important. Also talking to older operators
or technicians with a working memory (there aren't that many around anymore)
will clarify some of the issues. Such as: Question: why does ONLY the 2300
series have square nylon connectors? Dedicated individuals with a longstanding passion for the hobby will also be able to explain things. Bill Butterfield and Brad Merchant comes to mind. Here are the 1950-1961 Wurlitzer
setups: 255 steper -a mystery - mentioned
nowhere by Wurlitzer. Very similar to 257, but w/o a booster transformer Was there ever a 251 or a 254 stepper built? The 200 select Wurlitzers starting with the model 2000 had a built in junction box on the floor. These would normally have a factory mounted stepper on top of them. However, the stepper is often missing on machines found in Europe. Perhaps export models were sometimes shipped without the stepper unit - same as with some Seeburg and Rockola. Some of these steppers are interchangeable. The 2000 stepper is marked 2000, and does not interchange - 5 selector plugs and outlets for the motorized title pages. 2100 - 4 plugs, also has flipping pages. 2150, 2200, 2250 and up are similar, but the 2300 stepper does have square plugs. The 100 selects starting with the
2310 had junction boxes similar to the 200 selects. These are also
marked "2310" etc. Only the 2310 stepper has square nylon plugs. The 259
steppers, however, were hinged in below the mechanism. Later came a 259A
and then a 259B model with plug-in relays and wired for built in wallbox
speakers. More common is the single half dollar coin entry 5250 wallbox, also 200 select. This came out in 1958 to accompany the 2200 and 2250 models. The 5200 wallbox was the first 100 select wallbox, accomplished by simply using only one row of letter buttons, and masking the resulting hole in the cover with a stainless plate. Last came the 5202 and 5252 wallboxes, updated with a more complex credit system, and credit lights to the right of the pages. Some of these wallboxes had an auxiliary speaker mounted in an appealing chrome frame on two pillars above the wallbox. Then came 1962, and the world went square. |
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Die Angaben haben keinen
Anspruch auf Vollständigkeit oder Richtigkeit. |
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