An interesting story my dad had was when he was designing Radar systems
at White Sands - they used dummy array antennas until the unit checked out.

Dad used 1000 watt light bulbs - 100 at a time. He ran through 1000 a
week for about 6 weeks. Then they went to the large antenna.

The funny part was the purchasing officer kept ordering the bulbs!

They caught that pretty quick! - Thankfully they used the bulbs on the
base already.

I'll have to check out the large 'sun gun' lamps I have - see what
resistance they have cold. I don't have a holder for hot.

They are 10" long as I recall. I'll try to see what they have.

Martin

On 3/21/2013 9:20 PM, DoN. Nichols wrote:
On 2013-03-21, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
"DoN. Nichols" fired this volley in
:

Even better -- mount it in a gallon paint can, with a good RF
connector in the lid -- and oil inside to carry the heat from the lamp
to the walls of the can for cooling.


You're about two days late with that suggestion, Don G.

I must have missed that.

Remember the Heath "CanTenna"?

Certainly -- that was what I thought I was describing -- and I
thought that I actually mentioned thst by name and/or company, too.
(Perhaps in another branch of the thread.)

At up to 10M, the light bulb works as an OK load, if not completely
'tunable' Add one small air-wound coil and a few puffs of capacitance,
and it can tune darned well.

O.K. I was wondering what frequency range a light bulb would
work for.

Enjoy,
DoN.