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Front panel. Note the engraved model number.
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Underneath the chassis.
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Note the product detector for SSB reception by the power transformer. It has crystals for detecting USB and LSB.
Also note that the "bathtub"-style capacitors on the rear panel are gone, replaced by tubular types.
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Detail around the bandwidth selector switch. All the ceramic disc capacitors are factory-installed. This occurred
from serial numbers circa 175XX and up on all SP-600s.
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Top side of chassis. Exceptionally clean for a 40-year-old receiver.
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Rear panel
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ID plate on the top of the tuning condenser cover is missing.
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