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Jul 21st, 2025 | | | | Joined: Feb 2011 Posts: 583 'Bolter | | 'Bolter Joined: Feb 2011 Posts: 583 | The 1939 Double-Duo Horns were available as an accessory. The part number was 985442.
DESCRIPTION: Two high quality vibrator type horns, complete with switch, relay and necessary wiring.
SELLING POINTS: Chevrolet Double-Duo-Horns are louder than before and they offer an entirely new feature - a switch to control the horns for city and country driving. Realizing that courtesy makes safety, drivers can switch to the city-driving horn when in town. In the country, the double-trumpet horns can be used. They give a strong, powerful warning signal.
INSTALLATION: Installation instructions are included in each package.
PACKAGING: One set of Double-Duo Horns with switch, relay and wiring packed in a shipping carton.
MODELS: 1939 Master and Master Deluxe Models.
PRICES: List $9.50 NET $5.70
This information is taken from an original description sheet from Chevrolet in 1939. It shows a picture of the horns and the dash mounted switch. The switch is printed as:
HORN
CITY COUNTRY
In 1940 the switch is printed as:
HORN
TOWN COUNTRY
Installation instructions were also included for the cars and trucks. My brother-in-law gathered all the original 1939 Chevrolet accessory printed fact/part information. I made them into a book for him. The book contained 339 pages of accessory information.
Rick
1939 Chevrolet Stake Truck
| | | | | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | Sounds like they might have been wired in series for city and parallel for country.
Fred
52 3600
69 C-10
| | | | | Joined: Aug 2005 Posts: 6,383 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,383 | Wired essentially the same as the single horn except the wire goes to a relay. The switch on the dash is a simple A/B switch. In one position the horn button grounds the single horn and in the other position the dual horns. The city/country switch is about as rare as a winning powerball ticket so I used a three position toggle switch (On-A/off/On-B) under the dash to control mine. The last working city/country switch I saw on ebay was bid to over $200 and hadn't reached the reserve. That was a few years ago so I have no idea what the current market for them is.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
| | | | | Joined: Dec 2019 Posts: 407 'Bolter | | 'Bolter Joined: Dec 2019 Posts: 407 | you could probably make some spare change if you put your book together into a downloadable version for the curious enthusist.
Larry
Old man᠁Old truck᠁neither one goes very fast. All you need in life is TIME, PATIENCE and MONEY.
If you are missing one component, you'll need an abundance of the others two.
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