mystery thing

"John Larkin" wrote in message news: snipped-for-privacy@4ax.com...

tunable cavities?

Cheers

Milled OFHC hints of microwave; has what looks like three sets of resonant cavities, the highest frequency set having input and output cavities maybe for a transistor in the middle. The lucite posts are a bit of a puzzle and in any event this looks incomplete, having no coupling between cavities. The big bathtub area gives space for a lot of discrete coils, semis, etc.

It has hard to tell from the picture, but those three might be some kind of dielectric resonators.

There seems to be small holes at the bottom from the square areas to the round areas, so apparently a capacitive or inductive probe will be later inserted into those small horizontal holes.

On a sunny day (Fri, 21 May 2010 19:49:16 -0700) it happened John Larkin wrote in :

No scale, its a bathtub, ashtray, sorted sardines...

Option A) A trashed CNC drill program.? Option B) Several "pre-recycled" aluminum soft drink cans. (Coming soon to a store near you!) Option C) The business end of an Illudium Q-36 Explosive Space Modulator

A distant Option D), metal plate removed from SkyBuck's many brain lobectomey procedures. Or insert name of any SED A-hole du jour.

It looks like a microwave thing with light pipes for the LEDs that are on the PCB below. I goo way to make an indicator on the front panel without wires is with light pipes.