1604-B: Difference between revisions

1604-B (view source)

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 The General Radio 1604-B Comparison Bridge was introduced in 1954 Catalog N and remained available through Catalog O 1956.
-The Type 1604-B was designed for sorting, adjusting and comparing two devices at three different frequencies.  Impedance difference is measured in two ranges 5% and 20% using front panel switch, using a built generator and detector equiped with a 2AP1 CRT.  A balance is achieved when the vertical deflection is at a minimum. Disipation factor difference is read directly from the dial, one range.  The main change from the [[1604-A]] is the addition of the 400 Hz test frequency.
+The Type 1604-B was designed for sorting, adjusting and comparing two devices at three different frequencies.
+Impedance difference is measured in two ranges, 5% or 20% selected by a front panel switch, using a built generator and detector equipped with a 2AP1 CRT.
+A balance is achieved when the vertical deflection is at a minimum.
+Dissipation factor difference is read directly from the dial in one range.
+The main change from the [[1604-A]] is the addition of a 400 Hz test frequency.
 ==Specifications==