What is it?

[xsnrg]

The hum adjust pot gives it away as some form of an audio amplifier.  I would guess either an old power amp or the amp section of an old radio or tv like a philco or rca?

[onanparts]

The hum adjust pot gives it away as some form of an audio amplifier.  I would guess either an old power amp or the amp section of an old radio or tv like a philco or rca?

Figured somebody would spot that hum pot !

Eico HF-20 Mono Audio Amp...

[onanparts]

Turning the rudder hard left we now have.....?

[xsnrg]

Don't think I have ever seen a water ski competition/exhibition where the water was brought in in front of a grandstand

[mike90045]

4th of July Aqua Show
Used to see them at the Long Beach (Calif) waterfront, with bleachers and such.  This looks to be at a racetrack with the largest doughboy pool I've seen.

[onanparts]

4th of July Aqua Show
Used to see them at the Long Beach (Calif) waterfront, with bleachers and such.  This looks to be at a racetrack with the largest doughboy pool I've seen.

This particular event lasted much longer than a day or two. A few notable names that were there:

Ed Sullivan, Rod Serling, Victor Borge, Edward R. Murrow, Lawrence Welk, Billy Graham, Roy Rogers, Ella Fitzgerald.

[tecnodave]

Now here is a stumper......A test tool?

Related to solar!........well useful in solar anyway

td

[tecnodave]

Better view?

td

[Westbranch]

let me guess.... the RED one is positive 

[tecnodave]

WB.

Yup and the black one is negative, but what is it for?

td

[Westbranch]

makes me think of an arc tester or like that

[tecnodave]

WB

Not even remotely close

td

[vtmaps]

Something to do with testing batteries?   --vtMaps

[tecnodave]

Vt

Getting close!

td

[tecnodave]

Ok it does test something about the battery but what?      Hint the bar coming out the side is a probe and the plastic button on the end is an insulator...........a pointed probe and a cylinder?


td