Durward Tucker Transmitter Historical Restoration Project


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sequence_relays.jpg
sequence_relays.jpg

804 x 658

The four large relays provide dual functions.

1. Key the HV transformer primaries

2. Insert the 'heating elements' in series with the HV transformer primaries for low power / tuneup operations

The small one in the center keys the screen voltage HV transformer primary for the 4-1000A.

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