[Milsurplus] T-1154 Transmitter

[Mike Hanz]

On 6/25/2012 4:57 AM, BenG4BXD wrote:
> Not sure why you find the perfectly good system of different coloured
> knobs for different bands so amusing Dick.

Well, actually, I was moved to a smile myself, but perhaps Dick's last 
sentence should have been worded with a mention of our *American* sense 
of humor.

> Given that the equiv US gear is all black, operated in a black box in
> the middle of the night, well, the use of distinct operator aids like
> that sounds to me a really great idea.

It certainly is, except for the fact that colors do not remain constant 
over a wide range of light conditions.  At the very low cockpit light 
levels that one would use in a night mission, any of the darker colors 
tend to go gray, and the lighter ones trend towards white.  Add UV lamps 
and it is even more complicated.  Try it and see...:-) There were 
experiments well before the war that resulted in the final U.S. approach 
of white numerals on black background, and the contrast works fairly 
well in all light conditions.

I wish the U.S. experiments with the dynamic microphones had been more 
comprehensive - the British used them with great success because of 
their significantly improved intelligibility compared with carbon mics.  
It wasn't for lack of trying - the mid-1930s U.S. aircraft sets had a 
dedicated interphone amplifier for dynamic mics.  The final decision 
seems to have been economic in nature - you save a stage of 
amplification with the carbon mics.  Or maybe we just like repeating 
ourselves to make sure we're heard...

> No, only US soldiers glow in the dark, from carrying around all that
> depleted Uranium.

Another good one!  Thanks for the second smile of the day, Ben.

73,
Mike  KC4TOS

> ------------------------------------------------------------------------
>
> Subject: Re: [Milsurplus] T-1154 Transmitter
>
>
> All this chatter about the T-1154 made me go look at one. I can just
> see theTuning instructions ......"adjust the Lemon-Yellow for maximum
> and the Mauve for minimum"...Do they glow in the dark ??Got to love
> British humor !!73, Dick, W1KSZ
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