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Re: [Amps] Alpha 86 / 89 Plate RFC

To: <Amps@contesting.com>
Subject: Re: [Amps] Alpha 86 / 89 Plate RFC
From: "Robert W5AJ" <woodr90@gmail.com>
Date: Thu, 28 Jan 2021 23:42:34 -0600
List-post: <mailto:amps@contesting.com>
TNX to everyone for replies on Plate choke change out!

RFC3 from RF Parts works

 

Change is complete

Tomorrow will get clear photo for the 15M test - shown on link below

 

About only blip was the DC blocking capacitor.  was up against ground on
variable capacitor

Alpha 89 Works great now!

 

http://pages.suddenlink.net/w5aj/rfc/rfc3.htm

 

73 W5AJ

 

Robert

Midland, Texas

 <http://pages.suddenlink.net/w5aj/> http://pages.suddenlink.net/w5aj/

 

From: Robert W5AJ [mailto:woodr90@gmail.com] 
Sent: Tuesday, January 26, 2021 10:08 AM
To: 'Amps@contesting.com' <Amps@contesting.com>
Subject: Alpha 86 / 89 Plate RFC 

 

 

The Alpha 86 and 89 use a Home brew relay/Flapper scheme in HV path to short
out part of HV Plate choke 

 

RF Parts sells RFC that all indications can replace the existing choke and
remove the flapper 

https://www.rfparts.com/rfc3.html

 

Has anyone changed out the plate choke to eliminate the shorting flapper? 

 

Saw article where author rolled his own and removed the flapper 

 

W5AJ

 

Robert

Midland, Texas

http://pages.suddenlink.net/w5aj/

 

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