CQ CQ CQ de W0VLZ

Ross Hull's QST article documents a lot of experimentation done to understand the behavior of self-excited oscillators. Whether Hartley,...

Ross Hull's August 1928 QST article, "Overhauling the Transmitter for 1929", is a great article for anyone interested in putti...

Pictured are my 80 and 40 meter tank coils. Ross Hull made a strong point in his QST article that these coils need to be able to handle a lo...

T he last few evenings have included some final cleanup of the Hartley and then getting it on the air some more. There's been several of...

Well, it's in the log...the first QSO. Tonight I worked Lou, VE3AWA, on 3565. We were 549-559 both ways and had a nice contact going unt...

After a little debugging it works! When I first put power to my version of Ross Hull's Hartley transmitter I could only get it to osc...

Except for a couple of coil clips my clone of Ross Hull's 1928 Hartley is complete. It's ready for power and checkout.

Today we have surface-mount-technology, before that we had pin-in-hole printed circuit cards, before that point-to-point wiring and before t...

Working through this project has given me a new appreciation of the homebrewing skills of many of the hams during the twenties and thirties....

That pile of old parts, wood and copper tubing is starting to look like a transmitter. The eight parts left are mostly to be wired into plac...