Two-tone decoder (CB8719E)

Found in a 90s 73 magazine, this circuit uses an unusual component today which is the XR2206.

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15 V and 1 000 V power source (CB20182E)
This multi-purpose power supply provides voltages of +15, -15, 300 and 1 000 V and is very useful on...
Electronic Drums (CB20444E)
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Shield for inductive loads using a triac (CB7051E)
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