T27 is for band 3 in the oscillator.
Calling this T27 is still being questioned.
Stamped with part number 51292. I don't have a parts list for the early radios that give anything other than
resistors and capacitors.
A diagram identifies this coil as "B3-S3"
Letters are for table below only.

Resistance measurements made with 4-wire ohm meter.
A to B (center tap): 0.10 ohm B to C: 0.05 A to C: 0.16
Stamped with part number _______.
NOT PHOTOGRAPHED YET
Winding 1: _____ ohm Winding 2: _____
Page: /T27_osc/Index_t27.shtml
Last modified: Thursday, 30 Apr 2026