Skip to Content
You searched for
Search
Subject Electric resistors Remove constraint Subject: Electric resistors

Search Constraints

Search Results

    • 1946-Apr-08

    Handwritten and -drawn notes detail the resistors used in the Model F pH meter.

    Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate…

    • 1980

    A publicity or marketing image showing two hands holding the items in their packaging.

    • 1950 – 1969

    Resistor networks combine several resistors into a single component.

    • 1950 – 1969

    Resistor networks combine several resistors into a single component.

    • 1950 – 1969

    Resistor networks combine several resistors into a single component.

    • 1950 – 1969

    Resistor networks combine several resistors into a single component.

    • 1950 – 1969

    Resistor networks combine several resistors into a single component. Dual in-line package (DIP) networks are rectangular in shape, with two parallel rows of pins for through-hole mounting to a circuit board.

    • 1950 – 1969

    Shown with a pen for scale. These were likely manufactured by the Helipot Division.