D - HFO Premixer

Heathkit Changes (May 19, 1976) from SB-104-40

Reliable 20M HFO starting
1. C414 from 10pF to 18pF

Updates (SBM-104-2)

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SB-104 => 85-1418-1

PC Board

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X-Ray

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Schematic

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HW-104 => 85-1626-2

PC Board

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X-Ray

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Schematic

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SB-104A => 85-1418-4

PC Board

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X-Ray

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Schematic

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