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Amateur Radio

Tag: homebrew (page 2 of 3)

Another 630M Hartley transmitter

Classic Hartley transmitter using an 811 tube.  Aprrox. output 45-65W (depends on coupling).

Rig is mounted on a 21 in. L x 18 in. deep board, cut from a 48×18 prefabricated, edge-glued shelf board from big-box home improvement store.  Stained with dark walnut finish.

630m-hartley-4Continue reading …..

630 Hartley transmitter

630m-hartley

630M TPTG transmitter

TPTG (Tuned Plate – Tuned Grid) Transmitter for 630M (472-479 kHz)

1920s/1930s style TPTG transmitter using a pair of 809s in push-pull.

basePine Base panel before staining; 12 in x 36 inContinue reading …..

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