output transformer
Date: 1926-1940
Inventory Number: 1997-1-1401
Classification: Transformer
Subject:
Maker: Western Electric Company (1881 - 1995)
Cultural Region:
Place of Origin:
Dimensions:
10.1 × 8.1 × 6.7 cm (4 × 3 3/16 × 2 5/8 in.)
Material:
Description:
A black box with rounded edges. Near the bottom, protruding corners with circular holes in them. On one side, a rectangular yellow label (painted on?) that tells the maker, the patent number, etc. The top of the box has a slotted screw on each end. There are four metal connectors -- two on each side -- that have been soldered over many times. These connectors are numbered (1 to 4); connectors 3 and 4 are also labeled "HIGH".
Read the patent description here for more information.
Read the patent description here for more information.
Signedon label near the bottom: Western Electric
Inscribedon label near the bottom: TRADE MARK / Western Electric / REG US PAT OFF / PATENT 1604996 / MADE IN U.S.A.
on top: OUTPUT TRANS 123A
on top, in orange paint: T3
on top: OUTPUT TRANS 123A
on top, in orange paint: T3
FunctionA transformer makes use of inductively coupled conductors -- the transformer's coils or "windings" -- to change voltages. AC power running through the primary coil can be "stepped up" or "stepped down" depending on the ratio of number of windings in the two coils.