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Equipment file · Loud-speaking telephone outfit

10-A horn

Western Electric · 1922–1923

Evidence status · documented

Identity and core specifications are documented; some historical fields remain unavailable.

The Western Electric 10-A loud-speaking outfit paired a 7-A three-valve amplifier with a 518-W horn loudspeaker and an optional 2-A mains supply. It sold for $161 in its first year.

Introduced
1922–1923
Category
Loud-speaking telephone outfit
Intended use
Amplified announcements and loud-speaking telephone
Production
Western Electric

Why it mattered

  1. 01

    One of Western Electric's first packaged amplifier-and-horn products.

  2. 02

    It links telephone loud-speaking receivers to the larger PA horns that followed.

Engineering record

Configuration
7-A amplifier (216-A valves) driving a 518-W horn, optional 2-A supply[1]

Original pricing

$161 (1923)

2026 equivalent

≈ $3,150

Period US list or retail price reported by the cited source.[1]

Estimated in 2026 US dollars using the BLS CPI-U annual average for 1923 (17.1) and 334.980 for 2026, rounded to the nearest $10.[2]

Use in the field

No named deployment could be tied to this exact item by a checked source yet. Know of one? Suggest it on the contribute page.

Manuals & original documents

No authoritative manual or original document has been located for this profile.

Sources

  1. 110-A Loud Speaking Telephone Outfit, Western ElectricRadiomuseum.org · reference
  2. 2CPI Inflation Calculator methodology and CPI-U dataU.S. Bureau of Labor Statistics · reference · 2026

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