It’s also contagious, so be even more careful!

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Richard, now that you mention? “curb appeal” at which model did Halli begin to emphasize appearance? Here are some features, looking at Dachis’ book:

Early cabinets were wooden, dials seem to be? exposed rotating pointers over 360 degree circular scales dials , knobs along the bottom and at other places all depending on the model no. ?some front panel plates ??were flush with the cabinet front or slightly recessed or overlapping [as a rackmount] ???

The S-9/sx-9 begins the exposed rotating scale with dangling ?metal pointer

The 5-T looks like the first all metal front plate panel and metal cabinet, and ??a glass protected pointer over a new styled illuminated scale?

The S-14 seems to have the front rounded onto the side ??????????????????????????????????????????????????????????????????????????????????????????

The S-16 began those decorative side strips ?and an S-meter with a matching window/bezel ? for the bandspread

The S-19 ?speaker began having a plastic hanging pointer and an “h” over the grille screen ?

The s-20R began the recessed, and mostly covered dial

The SX-23 is a strong contender when it comes to appearance? side louver strips[real louvers?] but mostly the dial cover extended out to cover the band spread and the S-meter

It was not until the SX 28 until the front-upper corner was more rounded?

Earlier models ?had a front panel plate which then was flush with the cabinet front or slightly recessed or overlapping [as a rackmount] ?then ?the radio front began to rap around onto the sidesetc ?

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When it comes to competitors the NC-2-40D and speaker is high on the list

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Wow, I have not heard of Max (4U1UN) being mentioned in a long time. Used to know him well since he used to attend the Canandaigua AWA meets. I was not aware of his passion for Hallicrafters radios. He indeed had a passion for the Loewe OE333 receiver which uses the Loewe 3NF tube. Max liked to refer to it as the first integrated circuit. At one time he gave me a copy of the manuscript for his book on the OE-333, and it was never published. Wonder if anyone has a copy. I believe I may have the two rarest Hallicrafters radios, the S! and Curtis LeMay’s FPM-200. 73 – Mike

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Hi Jim, I have been trying to reply but keep getting diverted.

One problem is understanding the definition of a “big pin” tube. How big is “big”? ?I can find no definition. the 4,6,and older 7

Ing tubes have two ?0.156 ?[5/32?] inch pins and some .125 [1/8]inch pins but the 5 pin tube has only the smaller pins.

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Anyhow, I googled with “what is? a "big pin" radio tube?” ????and AI replied as follows”

AI Overview

A "big pin" radio tube, also known as a vacuum tube or electron tube, is a type of electronic device that uses the flow of electrons in a vacuum to control electrical signals, often used in older radio and audio equipment.?

Here's a more detailed explanation:

• What it is:

A "big pin" radio tube is a type of vacuum tube, a device that uses the flow of electrons in a vacuum to control electrical signals.?

·? ·? How it works:

Inside the tube, a heated filament (cathode) emits electrons, which are then controlled by a grid (a metal mesh) and attracted to a positively charged plate (anode).?

·? ·? Why it's called "big pin":

The term "big pin" likely refers to the size and shape of the base or connector pins on the tube, which are larger than those on smaller tube types.?

·? ·? Examples:

Some common "big pin" tube types include the 6L6, 6V6, 6K5, and 6C5.?

·? ·? Historical Context:

Before the advent of semiconductor devices, vacuum tubes like these were widely used in various electronic applications, including radios, audio amplifiers, and television sets.?

·? ·? Modern Usage:

While largely replaced by transistors and other solid-state devices, vacuum tubes are still used in some applications, particularly in audio amplifiers and specialized electronic equipment where their unique sound characteristics are desired.?

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More stuff later.

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Richard,? loctal /? loktal? ..s were spoken about ?in this? 1938-12 article:

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pdf??? 20?? -----

??

but ?March 1939 revealed some data

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pdf?? 59??? -----

From some reading it seems that RCA? and philco? were in a battle so philco started a deal with Sylvania ??much earlier maybe ??

Probably, the RF tubes for TV is what drove the loktal design ahead of octals due to lower ?capacitance ?

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Ahh Jim ?, yes I guess it means that too many.? I use pre-octal [it doesn’t sound so demonstrative], but I am trying to confirm that

I was really sending what the AI experts know. Do you agree with them?

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Back to the 5-T, I would agree, about the tubes suggesting that it was designed perhaps before about ?may, june, july 1935 ?when the new octal tube data became known

the first ad I saw for the 5-T?? was in:

?? ?somewhere,???

BUT a bigger one was in: ???

?? pdf page 8??? ?

?still?? Marion???? Indiana

I just wonder they used all the new octal/metal sockets and tubes for the ?flagship Super sky-riders and left the older stuff for the sky buddy. That might make good business sense.

I worked in an industrial electronic plant for a while, so I wonder who bends and punches the steel chassis, front panel, and cabinet ? were machines easily available to do some bends?? Maybe it depends on just what is available? maybe they contract out the steel, maybe not

The month after this last ad, they changed the address to 2611 indiana so the first 5-Ts might be made at either place

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Wandering back to the early skyriders, and where they were actually made; nobody seems to have evidence of what happened to the SMI license from RCA when the they split up in Oct 1932. ???

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