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Author Topic: RCA transmitting tube vs Frequency info  (Read 916 times)
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KM1H
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« on: February 20, 2012, 09:27:15 PM »
In all the old TX tube spec sheets they end by saying:

"Refer to sheet Trans. Tubes Versus Frequency."

Does anyone have that sheet or is this just a myth??

Carl
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Opcom
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« Reply #1 on: February 20, 2012, 10:03:35 PM »
Look in the "application tables" of the RCA TT-4 starting on page 88, (and maybe in the TT-3 as well?). In the RF section the max input at full power is shown. Those books are on bunkerofdoom.com and elsewhere.
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KM1H
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« Reply #2 on: February 21, 2012, 03:45:03 PM »
I have those in originals but it still leaves gaping holes. I suspect its in that multiple volume set of RCA engineering data that I have boxed in the attic, maybe 20 pounds of it
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Opcom
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« Reply #3 on: February 21, 2012, 07:47:12 PM »
I wonder if it is in the HB-3? that multi-volume set.

If you got that secret stuff boxed up, time to get it out and scan it!
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W7TFO
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« Reply #4 on: February 21, 2012, 08:08:04 PM »
The HB-3 set is akin to a full set of Riders, page-for-page scan-wise.

A herculean task better left to those with nothing else to do, us hams are too busy.

73DG
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Pete, WA2CWA
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« Reply #5 on: February 21, 2012, 10:52:55 PM »
The HB-3 stuff is available from various places on the web unless you like re-inventing the wheel and have no life and lots of idle time.
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« Reply #6 on: February 22, 2012, 11:20:55 PM »
I'm talking about his other stuff in the attic.
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Tom WA3KLR
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« Reply #7 on: February 23, 2012, 08:21:28 PM »
I am posting what I think you are looking for Carl.

One pdf is from RCA HB3, 7 pages, 1953 - 54.

The other pdf is from RCA TT3 1938.  Being older than the HB3 pages, there are less tubes, but one interesting difference is the resonant frequency column.
* hb3ratingVsFr1.pdf (1708.1 KB - downloaded 44 times.)
* 1938 TT3pRatVsFr1.pdf (977.21 KB - downloaded 42 times.)
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73 de Tom WA3KLR  AMI # 77   Amplitude Modulation - a force Now and for the Future!
KM1H
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« Reply #8 on: February 23, 2012, 09:01:50 PM »
Thats EXACTLY what I was looking for Tom, many thanks.

Do you have any objection if I forward that to others?

Carl
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Pete, WA2CWA
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« Reply #9 on: February 23, 2012, 09:16:08 PM »
All that info has been on this site, http://www.tubebooks.org/hb-3_tube_manual.htm for quite some time. Scroll down to transmitting tube section.
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« Reply #10 on: February 23, 2012, 09:19:52 PM »
Quote from: KM1H on February 23, 2012, 09:01:50 PM
Thats EXACTLY what I was looking for Tom, many thanks.

Do you have any objection if I forward that to others?

Carl



You could just link others to this thread! Smiley
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Tom WA3KLR
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« Reply #11 on: February 24, 2012, 08:39:08 PM »
Attached is the 1963 HB-3 version of the Tubes vs. Frequency information from tubebooks.org .

RCA pared it down to 3 pages, 10 years later than my 7 page scan from my HB-3.

For example, the 6146 is in my 1953/1954 sheets but not in the 1963 version.
* 1963hb3ratingVsFr3pgs.pdf (69.88 KB - downloaded 31 times.)
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73 de Tom WA3KLR  AMI # 77   Amplitude Modulation - a force Now and for the Future!
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