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Rist Horn on 12 Volts

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Rist Horn on 12 Volts
Nick Mayne Offline
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Joined: Jan 2018 Posts: 58 Threads: 20
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#1
14-01-2022, 09:33 PM
Do I need a resistor in series to run a 6V Rist horn on 12 Volts? If so can anyone recommend an Ohm value and even a specific item?
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Peter Clayton Offline
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Joined: Aug 2017 Posts: 217 Threads: 19
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#2
14-01-2022, 10:01 PM (This post was last modified: 14-01-2022, 10:01 PM by Peter Clayton.)
I run my six volt klaxon on twelve volts. works well and scares the bejesus out of those who offend me.
I run my six volt klaxon on twelve volts. works well and scares the bejesus out of those who offend me.
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Dave Wortley Offline
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Joined: Aug 2017 Posts: 607 Threads: 18
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Location: Sheffield South Yorks
Car type: 1932 RN saloon
#3
15-01-2022, 09:02 AM
My 6v Rist horn has been on 12v for the last 18 years.
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Nick Mayne Offline
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#4
16-01-2022, 10:44 PM
Thank you both that is re-assuring so I need to do nothing and that is a change!
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John Mason Offline
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Joined: Dec 2017 Posts: 1,132 Threads: 66
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Location: Nottinghamshire. Robin Hood County
Car type: Austin Ruby Mk1 1935
#5
17-01-2022, 10:12 AM
Can I ask a question just out of curiosity. Does running a 6 volt horn on 12 volts change the tone or its volume.

John Mason.
Would you believe it "Her who must be obeyed" refers to my Ruby as the toy.
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Peter Clayton Offline
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#6
17-01-2022, 04:13 PM
Will raise  tone/pitch and volume. Possibly eyebrows as well.
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Dave Mann Offline
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#7
17-01-2022, 06:39 PM
Whilst the Benjamin horn sounds OK on 12 volts the Rist horn was a bit too shrill for a Seven so I used a spare dynamo field resistor to drop the voltage to give a more acceptable tone.
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