SG504

The Tektronix SG504 is a levelled sinewave generator plug-in for the TM500 system.

Manuals – Specifications – Links – Pictures

Key Specifications

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Output Head

The SG504 is usually found on ebay without the output head. David Partridge did an excellent teardown and reverse engineering of the output head and sells kits to make new heads at [1]

It's fairly easy to use that schematic to make a new level head that fits in a standard BNC Pomona box since it's function is really just a 250 MHz to 1050 MHz temperature compensated power meter with 50 ohm feed-thru. See the pictures for an example.

Pictures

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  With output head (catalog picture)

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  Homemade output head