Impedance Bridge

Circa 1960's

Saturday, April 05, 2014

Impedance bridge theory developed in 1830's and in the 1840's, C. Wheatstone improved it for accurate resistive/impedance testing. Note "magic eye" tube lower center.

Categories: Instruments Collection

Author: ephf

Edmonton Power Historical Foundation is a non-profit society dedicated to preserving the history of electric power in the City of Edmonton and the Province of Alberta, for the education and entertainment of current and future generations.

Edmonton Power Historical Foundation

Location:

We are located on the grounds of the Leduc West Antique Museum. Travel 5 km west of Leduc on Highway 39. Go north on Range Road 260 (Cohne Dale Road) for about 800 metres and the museum will be on your right.

Hours of operation 2024

Well, that's just about it for 2024. The final show was the Lesco Pro Truck show on 21-Sept, and it was a HUGE success; lots of people on site and lots of visitors to our museum. The next event will be the Leduc Country Lights all through the month of December. The whole park will be lit up in a breathtaking display of thousands of lights covering 8 acres. Unfortunately, the EPHF Museum will not be open to visitors for this show. If, however, you are interested in a private tour, just leave a message on this website and we'll do our best to arrange a time for you to come out.
We'll open again in May 2025 for the Leduc West Spring Swap Meet, dates to be announced. Watch this space.