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Author Topic: WTD: 500 W Amp info 1948 Handbook  (Read 4580 times)
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Carl WA1KPD
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« on: July 09, 2012, 10:23:09 PM »
Saw an 813 amp on EBay recently which references schematics that look like ARRL work, The seller also referred to it as a 1948 amp. Nothing comes up in a QST search and you can see a chapter heading so sure looks like a Handbook article.
It is titled "A 500 Watt Beam Tube Amplifier"

I don't have that year in my collection and would like to get a copy of the article, or buy a Handbook if it is in there.
Thanks and 73
Carl
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* 813 amp 1948.JPG (59.35 KB, 643x446 - viewed 556 times.)

* 813 2.JPG (26.44 KB, 303x383 - viewed 681 times.)
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Carl

"Okay, gang are you ready to play radio? Are you ready to shuffle off the mortal coil of mediocrity? I am if you are." Shepherd
ae7db
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« Reply #1 on: July 09, 2012, 11:59:19 PM »
I think that looks like the amplifier from QST of February 1947, p.23  If you have access to the QST archives you might check to see.

73,
Dean
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K0VGD
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« Reply #2 on: July 10, 2012, 09:58:24 AM »
Carl,

It's the 48 ARRL Handbook, I can scan it for you.

73,

Bob/K0VGD
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Carl WA1KPD
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« Reply #3 on: July 10, 2012, 10:40:17 PM »
Dean- Got it on line- Thanks

Bob- Appreciate the offer very much but I am all set

What a great resource this board is!  Cheesy

Carl
/KPD
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Carl

"Okay, gang are you ready to play radio? Are you ready to shuffle off the mortal coil of mediocrity? I am if you are." Shepherd
KM1H
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« Reply #4 on: July 11, 2012, 01:19:07 PM »
Most HB feature articles are from an earlier QST and the HB version is often condensed and almost always doesnt include corrections and revisions.

Carl
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KB5MD
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« Reply #5 on: July 13, 2012, 09:30:20 AM »
There is a 47 handbook on ebay now.
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KM1H
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« Reply #6 on: July 27, 2012, 01:38:53 PM »
Its NOT in the 47 ARRL, it IS in the 48 starting on Pg 207.

The 47 does have a cute 7C5, 7C5, 4D32 rig.

Carl
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