Obi Transistors possibly found!

[Howard]

I was interested in the E-11 mag well cylinders thread, and having noted the sleeves for the tubes I decided to search for these tubes and hopefully find the mounts, just to pass the time, as I love hunting stuff down.
A few hours on Google produced these:







It seems to me the caps on some of these tubes are VERY close to the transistors we've been looking for all these years - and it kinda makes sense the prop builders would have used everything at their disposal.
So, perhaps 'NAM' and 'N2' are tube cap markings rather than transistor markings.
As I understand the small amount I've read recently about tubes, 'N2' stands for 'North 2,' a polarity designation.

I have a few feelers out looking for the correct model of tube...

Start up your search engines, gentlemen.

 

[James Kenobi 1138]

Good detective work. I had searched tubes years ago thinking the inner part of the balance pipe was a tube socket, with the outer part being the sink drain.

Well, one more thing to waste money on !!

 

[Serafino]

Very interesting, Howard. Particularly since the “2nd saber” seen in the Tunisia production shot may have white edges on the ‘washer’.

 

[Gigatron]

Very interesting, Howard. Particularly since the “2nd saber” seen in the Tunisia production shot may have white edges on the ‘washer’.

I'd say the "white" is far more likely just light reflection that you get with any metal. Otherwise, you'd have to say they wre using white calc strips and the resistor had white parts as well the top-sides of the clamp.

-Fred

 

[amish]

Wow, great detective work. This would be excellent if it pans out.

Tom

 

[Serafino]

Gigatron, I almost agree with your position, but can’t go along with your reasoning. Curved surfaces don’t reflect the same way flat ones do, the calc bubbles are refracting, and the curved sides of the transistors are not showing the same effect as the washers. The washers may well be just matte finished metal, but there’s an odd effect there that I’m not ready to dismiss.

 

[Gigatron]

Gigatron, I almost agree with your position, but can’t go along with your reasoning. Curved surfaces don’t reflect the same way flat ones do, the calc bubbles are refracting, and the curved sides of the transistors are not showing the same effect as the washers. The washers may well be just matte finished metal, but there’s an odd effect there that I’m not ready to dismiss.

I don't see any out of the ordinary effects. The light looks to be hitting at a rather steep angle - almost just a few degrees below perpendicular to the saber (almost 90 degress straight on to the clamp).

The bubbles, being clear-cast acrylic have a double effect of having light entering from the side and scattering from the internal structure as well as reflecting off the top.

The washer has a larger cross-section than the transistor and therefore reflects more. Add in the shallow angle of the light and the washer blocks a portion of the light hitting the transistor and there you go.

-Fred

 

[Serafino]

The washer has a larger cross-section than the transistor and therefore reflects more. Add in the shallow angle of the light and the washer blocks a portion of the light hitting the transistor and there you go.

Our ideas of how light and reflections work seem to be somewhat different.

 

[defstartrooper]

This copy seems to have less flare for some reason

I presume this ones been seen before but it does look like it could suggest white washers

 

[Howard]

Here's what an expert in tubes emailed me yesterday:

I would lean toward some aviation piece but the extreme corrosion hides any further hints. Possibly a radio or radar piece. The picture labeled as "mount5" has an RF connector and what appears to be a series of tuned inductors.

So, an aviation piece.
I've been trying to find the radio set up for a Gloster Meteor - to no avail!

 

[lonepigeon]

So, an aviation piece.
I've been trying to find the radio set up for a Gloster Meteor - to no avail!

Interesting. I thought about that before but never found decent pics of the vintage aircraft we're interested in. Don't forget the Vickers Viscount as well (source of R2 holoprojectors).

 

[Howard]

Interesting. I thought about that before but never found decent pics of the vintage aircraft we're interested in. Don't forget the Vickers Viscount as well (source of R2 holoprojectors).

Yes! I'd forgotten about the VV - thanks Chris.

 

[TridCloudwalker]

What about the plane that would have housed the Mercede's engine that the emitter came from?

 

[Chingon]

What about the plane that would have housed the Mercede's engine that the emitter came from?

It was a Rolls Royce Derwent engine and thats the Meteor that was mentioned previously mentioned.