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HALLDORSON HVAT-1 Audio Interstage Transformer, Single Plate To Single Grid
HALLDORSON HVAT-1 Audio Interstage Transformer, Single Plate To Single Grid
HALLDORSON HVAT-1 Audio Interstage Transformer, Single Plate To Single Grid
HALLDORSON HVAT-1 Audio Interstage Transformer, Single Plate To Single Grid
HALLDORSON HVAT-1 Audio Interstage Transformer, Single Plate To Single Grid
HALLDORSON HVAT-1 Audio Interstage Transformer, Single Plate To Single Grid

HALLDORSON HVAT-1 Audio Interstage Transformer, Single Plate To Single Grid

$ 3.43

Availability: 75 in stock
  • Condition: Used
  • Brand: Halldorson

    Description

    I believe this is an Audio Interstage Transformer
    Halldorson Model HVAT-1 in nice condition.
    I do not have a Halldorson catalog to find the impedance values. The transformer ohms out good.  Red and Black wires dc resistance reads 826 ohms. Yellow and Green wires read 3K ohms. Maybe a 3 to 1 ratio. Not sure ?
    These were used in many early radios from the 1920's and 1930's
    It does not look like it was ever used except to maybe as a test as it looks like it was never mounted. Being sold used, as is, and no returns.
    Check out pictures and ask any guestions before purchasing. Thank you