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Re: [Amps] Kenwood TL-922 Loading Cap Needed & AL82 Plate Tuning

To: amps@contesting.com
Subject: Re: [Amps] Kenwood TL-922 Loading Cap Needed & AL82 Plate Tuning
From: Victor Rosenthal 4X6GP <k2vco.vic@gmail.com>
Date: Tue, 12 Apr 2022 21:53:34 +0300
List-post: <mailto:amps@contesting.com>
I did this on my TL-922. The loading cap arced after I very stupidly ran it with high SWR. I took the cap out -- it was impossible to do it in place -- and used a needle file, relay burnishing tool, and fine sandpaper to clean the plates up. It was difficult because the spacing on the loading cap is very small. I had lots of time to think about what an idiot I was. Believe me, I am very careful about SWR since then.

73,
Victor, 4X6GP
Rehovot, Israel
CWops #5
Formerly K2VCO
https://www.qsl.net/k2vco/


Victor

On 12/04/2022 20:05, Thomas Walsh wrote:
Could you possibly disassemble the cap assy and replace/repair only
the damaged plates?? I just did this on a 9500, and that's what I
plan on doing with the TL-922 if it ever goes.. More commonly it's
the Plate tune caps that arc the most, especially with high vswr. I
think the swr has to be much worse to cause arcing at the load cap.. GL, Tom W2CO

On 4/12/22 10:45, Robert W5AJ wrote:
I've had AL82 plate tuning capacitor on order from Ameritron (MFJ)
for almost six months Ameritron parts list shows as 190pf 4.5kV -
C19 on schematic I suspect the 190pf is max capacitance

73 Robert W5AJ



On Tue, Apr 12, 2022 at 9:31 AM Tom Hellem <tom.hellem@gmail.com>
wrote:

Is there something unusual about the TL922 load cap that makes
it impossible to find a generic variable that will fit into the
space? We inherited a box full from an estate a while ago,
possibly there could be a qualified candidate in it.

Tom K0SN

On Tue, Apr 12, 2022 at 3:52 AM gudguyham--- via Amps <amps@contesting.com wrote:

Good luck I need one too.


Sent from the all new AOL app for iOS


On Monday, April 11, 2022, 10:47 PM, Jim <jimw7ry@gmail.com>
wrote:

Folks...

Need a complete loading cap (variable) for a Kenwood TL-922.

Thanks Y'all

-- Thanks, 73, Jim W7RY

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