How About This For A Jolly Jape?

JW loads up

The line used was that I had been studying the design of the K2RIW linear for 70 cm which used two 4CX250B tubes in a cavity and I realised that a 40 foot container would resonate at 7MHz, so we built a cavity tuned linear using the convenient container outside the workshop and drove it from a TS-520 which is on the little trolley where I'm sitting.

The RF output was used to feed the Strumech tower as a grounded quarter wave antenna and the reinforced coax feed line can be seen in the background!

We did, as I recall, get a fair number of requests for the design - John Wilson