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Author Topic: Ranger II parasitic suppressor  (Read 3403 times)
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N4RMT
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« on: July 20, 2016, 11:27:27 AM »
Good day gents.

Could someone tell me what the value is of the plate parasitic choke resistor on the Ranger II? This one's burnt to a crisp, and the schematic and parts list just list the whole assy. as "L9".

Thanks
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KA2DZT
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« Reply #1 on: July 20, 2016, 10:40:05 PM »
Those resistors are usually in the range of 50 ohms.  Someone should know exactly the value used in the Ranger.
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KD6VXI
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« Reply #2 on: July 20, 2016, 11:02:38 PM »
http://amfone.net/Amforum/index.php?action=printpage;topic=34063.0

According to Carl,  33 ohms.

He also gives the values of other editors to check.

--Shane
KD6VXI
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N4RMT
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« Reply #3 on: July 21, 2016, 03:03:03 AM »
Quote from: KD6VXI on July 20, 2016, 11:02:38 PM
http://amfone.net/Amforum/index.php?action=printpage;topic=34063.0

According to Carl,  33 ohms.

He also gives the values of other editors to check.

--Shane
KD6VXI

Well I had some 47ohm 3 watters so that's what I used.  We'll see how it does.  Thanks guys.
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DMOD
AC0OB - A Place where Thermionic Emitters Rule!
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« Reply #4 on: July 21, 2016, 12:32:03 PM »
Carbon Composition 2-3W resistors of 47 to 51 ohms will work just fine.

Phil - AC0OB
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KD6VXI
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« Reply #5 on: July 21, 2016, 04:00:58 PM »
So do MOF.....   below 5 Watt.

--Shane
KD6VXI
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N4RMT
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« Reply #6 on: July 21, 2016, 04:02:41 PM »
I used Xicon MOF.  It seems to be behaving just fine so far.
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