HALLICRAFTER S-52 User Manual

Hallicrafters S-52

Single conversion general coverage receiver. The S-52 is the AC-DC Marine version of the S-40
and is much rarer than the S-40 itself. Vintage 1948, the set covers 4 bands from AM broadcast to
44 MHz. Has electrical bandspread and BFO. Its extenal appearance is nearly identical and its
circuitry is similar to the S-40 with the 25Z5 rectifier and 25L6 audio output substituting for the
type 80 and the 6F6 in the S-40 and with a dual-triode 6SC7 substituting for the 6J5 and 6SQ7 in
the S-40. The radio's 9 tubes include a plug-in ballast that was selected for either 120 volt or for
240 volt operation. The B- in this set (one side of the power line) is "floating". While safer than
directly connecting one side of the line to the chassis, as found in Hallicrafters models such as the
S-38 and S-41, an isolation transformer or GFCI is still recommended for safety. The original
price was $99.50