Casa Lambretta Item number: 9500022
Casa Lambretta
66,00 €*
available immediately
Shipping weight 0,05 kg

Casa Lambretta horn 6V, chrome - suitable for Lambretta D/LD 150 and Vespa V50/V90/VNB/VBB

AC/DC?

AC stands for alternating current = alternating voltage = buzzer
DC stands for direct current = direct voltage = horn

Schnarre
Many old vehicles without a battery use alternating voltage as the on-board power supply. Only so-called buzzers can be connected to this. These are recognizable by a pitch that rises and falls with the engine speed.

Horn
Due to the non-constant frequency, buzzers were no longer approved for use in German vehicles from around 1980 onwards. At this time, most vehicles were equipped with a battery and a DC electrical system. This is where the real horns, recognizable by their constant pitch regardless of the engine speed, are used.

Exceptions
There are a few exceptions where a DC horn was used despite the AC electrical system. From 1984, with the introduction of the Lusso series, Piaggio used so-called horn rectifiers. Here, a special bridge rectifier with downstream capacitors, which is only responsible for the horn, converts the AC on-board power supply for the horn into DC. This rectifier can also be retrofitted to all vehicles with a 12V AC vehicle electrical system if, for example, the TÜV does not accept a buzzer.

NOTE: Almost all German Vespa PK and PX models require a horn (DC).

(US)

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Color
Base color
Chrom
 
Horns
Tension
6 V
Electricity
Wechselstrom (AC)
Outside diameter
74 mm
Bolt circle diameter
65 mm
Number of fixing holes
2, 3, 4, 6
Special feature
Bachel Relief am Rand
 
OEM numbers (for comparison purposes only)
Innocenti:
06011165, 09.8.120, 99098120
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