April 1933 QST
Table of Contents
Wax nostalgic about and learn from the history of early electronics. See articles
QST, published December 1915 - present (visit ARRL
for info). All copyrights hereby acknowledged.
The April 1933 issue of the American
Radio Relay League's monthly publication
QST (Q-code for "general call to all stations") was chock full of gags, much to the
delight of readers based on subsequent letters to the editor. The editors must
have felt a need to alert readers that some of the material was not to be taken
seriously since the Table of Contents lists them as
being in the "April Fool Section." I have
posted a few of them. As with so many of these vintage articles, being
privy to the customs and equipment of the era is essential to "getting" the
joke. I will refrain from spoiling these, but if you need some insight from an
old guy (61 years in August), send me a note and I'll try to put them into
perspective. One gag takes careful observation to notice, and you don't need
gray hair to figure it out.
At Last - Some Different Toobs!
An Exclusive Photograph of the 254G63A13S in Its Native Environment
Installed in a complete transmitter.
The door is open to show the internal construction of the tube; Note the High-C
circuit. The tank capacity is 200 liters. Heavy pipe conductors are used because
of the intense heat generated in operation.
Manufacturers Reluctantly Start Production of New Bottles
Good news, fellows! After an interminable period of waiting, we can at last announce
a few new chubes for the use of hams only. It must, in fact, have been all of four
and a half days since the last preceding conglomeration came from the drill-presses
(and only a measly 34 new types then) so OST's daily bulletin on new tube types
had been discontinued. But now!!!!
Out of the 68 new types announced today, we can only describe three in detail.
These have been developed by the R.A.C. laboratories at the express request of OST
(express because the request was too big to go by parcel post). Needless to say,
all these new tubes have power to burn, especially the 254G63A13S, shown in one
of the photographs.
The 254G63A13S is made only for ultra-high-frequency kitchen transmitters. The
oscillations generated are very short in wave-length, but oh boy! is there hot stuff
in that tank circuit!! Did you ever back into a hot radiator with its rear end uncovered
? Well, then you know how we felt when we did the same thing. That explains perfectly
the operation of this new tube.
We must admit a slight disappointment when we found the new tube had only two
grids. That's hardly enough for a modern tube. However the second grid isn't really
a grid, if you know what we mean. Actually it's the plate, wound in a spiral so
no external tank inductance will be necessary. The cathode is a multi-hole affair
with jet emitters. We don't know what the inner grid is for but the makers seemed
to think it was necessary. A novel feature of the 254G63A13S is the two-piece cast-iron
envelope. A secret process of manufacturing a clinging vacuum makes this new development
possible. The importance of this cannot be overestimated for it provides for continuous
rejuvenation of the tube. When the tube becomes sluggish in action, the door can
be opened and the accumulated electrons cleaned off the grid and plate with a brush.
The electrons can be saved and used over again if one wishes to be ultra-economical.
This tube is guaranteed to deliver plenty of red hot juice at short notice.
Two New Bottles
The OHNO123UGH and 123456ZZXQ!&
Two small but powerful bottles
which work like brothers in push-pull but not so good in parallel.
Some interesting glassware has been added to the list in the 123456ZZXQ!&
and the OHNO123UGH shown suitably juxtaposished in the shecond photograph. The XQ!&
(for short) is at the right. It goes into oscillation with remarkable ease at any
frequency, but unfortunately has a tendency to become unstable and get out of control
if used continuously. Comes in several sizes, the largest variety being illustrated
here. It packs a tremendous wallop and can be used with wonderful effect so long
as care is taken to keep the operation below the spilling-over point. This depends
mainly on the capacity of the tank. High C is desirable. A good-sized leak also
The 123UGH (also for short) is a small but highly efficient bottle particularly
useful as an exciter. Its specialty is the elimination of parasites. Experience
with the 123-UGH has shown, however, that in spite of its high output it is prone
to give a spattery a.c. note unless used with caution. A particularly good tube
to give the young squirt in the next block who calls you at 2 p.x. when you're trying
to work some DX.
Yep, There Are Others
For instance, we have the 273DYWL29F, 36ELGH39, EIGH29AHG, $&c178, A:EUC26,
38GH20, QCCH2837, QPW029, WM2938HT, DKEIG29, 2937, WUYN &?, 29QODJ56w, EOA395FG,
(Continued on page 97)
Posted April 1, 2019