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This is my 1940's era 6L6G slatboard transmitter and power supply project.

The transformer has secondaries at 385v, 6.3v and 5v.

The rectifier tube is a 5Y3G.

The picture below shows my wiring job. I tried to only use vintage era parts, down to the cloth covered wires.

This picture shows the 6L6GC made in China tube from AES - Antique Electronic Supply
That tube was advertised as a ST type, but wasn't what the type I wanted.

This picture below shows the big bottle 6L6G tube with clear glass.

This picture below shows the circuit I used from Nov 2009 CQ.

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