Kinraide Coil with Improved Spark Gap

Object/Artifact

Turn Of The Century Electrotherapy Museum

Kinraide Alternating Current High Frequency Coil with improved spark gap

Name/Title

Kinraide Coil with Improved Spark Gap

Entry/Object ID

2026.6.1

Description

Kinraide Alternating Current High Frequency Coil with Frederick Finch Strong Spark Gap - Frederick Finch Strong and Electro-Radiation Company took over Swett & Lewis in 1905 and the spark gap was simplified for ease of use. The original water-cooled quenched spark gap was replaced with a water-cooled spark gap with silver contacts.

Use

X-Rays and later wireless telegraphy

Context

Working replica built by Jeff Behary with original Frederick Finch Strong spark gap. On loan for public display and demonstrations.

Collection

Turn Of The Century Electrotherapy Museum

Acquisition

Accession

2026.6

Source or Donor

Jeff Behary

Acquisition Method

Loan