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Author Topic: Why doesn't the ART-13 put out 250 watts or more?  (Read 25026 times)
G3RZP
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Posts: 1271




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« Reply #30 on: June 30, 2017, 02:42:25 AM »

Did the Russians ever copy the ART13? I believe they copied the BC348 and definitely did the BC221.
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W8RXL
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Posts: 70




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« Reply #31 on: June 30, 2017, 06:42:28 AM »

They sure did, here is a little info on it.

http://www.collinsradio.org/russian-copy-art-13/
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AC2EU
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« Reply #32 on: June 30, 2017, 10:04:05 AM »

Those aircraft radios were sesigned for short antennas.
typically 5-12 ohms resistance with a lot of capacitive reactance ( thus the roller inductor for loading)

Are you trying to match it to 50 ohms? You may get better results with a 4:1 or 9:1 balun.

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G3RZP
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« Reply #33 on: July 01, 2017, 09:36:02 AM »

Tnx W8RXL.

Probably the most copied radio of that period was the National HRO.
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KM1H
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Posts: 5253




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« Reply #34 on: July 01, 2017, 05:03:13 PM »

Yep, Germany, Russia, Aussies, and Japs built a version; and the Canadians did one under license with mostly National parts.  Anyone else build one?

Carl

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G3RZP
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« Reply #35 on: July 02, 2017, 01:21:34 AM »

Don't know if the Russians did. They copied most everything else!
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N8FVJ
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Posts: 885




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« Reply #36 on: July 02, 2017, 07:19:47 AM »

Hell, such low output might as well run a Heathkit DX-60.
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N2DTS
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Posts: 957




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« Reply #37 on: July 03, 2017, 04:49:43 AM »

Its a big step from 15 watts AM of the DX60 to the 150 watts out of the ART13.
People DO run them at 1200 volts or more...
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KB4QAA
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Posts: 3339




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« Reply #38 on: July 11, 2017, 12:22:00 PM »

Did the Russians ever copy the ART13? I believe they copied the BC348 and definitely did the BC221.
The Russian copies of the ART-13/BC248 pair were standard new HF equipment into the 1990's on Mi-4, Mi-6 and Mi-8 helicopters.  Hundreds if not several thousand must still be in use.  I have seen them in recent documentaries and mentioned by one recent ham Dxpedition to Siberia.
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KA0HCP, ex-KB4QAA Relocated to Ks. April 2019.
KM1H
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Posts: 5253




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« Reply #39 on: July 13, 2017, 05:11:22 PM »

They are certainly EMP resistant and some MIG's were using hollow state well into the 90's at least.
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