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I recall marveling at the oddity of the Raytheon design when I scanned that SAMs and submitted to ETF. Three 50B5s in parallel for the hz output, and a 35Z5 for damper!
Looking carefully at the circuit, I believe the "polarizing relay" is NOT a vibrator, but merely a relay which makes the set work regardless of which way you plug it into a DC outlet. Probably a relay with a permanent magnet that is sensitive to polarity of current in its solenoid.
Note how the voltage from the output of the polarizing relay bypasses the filter, which would not be done if it were a vibrator. Also note (as mentioned above) that the are no DC voltages over 120 VDC in the voltage chart (except where boosted by the hz output).
Last edited by Tom Albrecht; 07-05-2012 at 04:35 PM.
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