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Tag: transmitter (page 1 of 2)

630M MOPA at Dayton

The 630M MOPA (89/802/811) was displayed at the Dayton Hamvention as part of the homebrew theme this year.  Plenty of questions were asked and photos taken like the one below!

radio

1936 Homebrew Exciter

Tubes
89 Hartley ECO
802 Buffer

Band Coils: 630M, 160M, 80M, 40M, 30M, 20M, 15M

89-802-exciter-frontContinue reading …..

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 …..

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