I took a look at the input filter board and it's not an 81763. It's labeled as
an 81550 but it is not loaded with the same components as the spare 81550 that
came from the seller, nor does it match the 81550 in the manual.
I thought maybe the 81550 in the amp had modified to be an 81763 but the
documentation for the 81763 says it should have two coils and 4 caps. The one
in the amp only has one coil and a resistor in place of the second, along with
only one cap.
Anyone have a clue what I'm dealing with here?
Thanks, Joe, K8MP
-----Original Message-----
From: Joe Papworth via TenTec <tentec@contesting.com>
To: tentec <tentec@contesting.com>
Cc: k8mp <k8mp@aol.com>
Sent: Thu, Feb 16, 2017 11:02 am
Subject: [TenTec] Centaur input SWR
I've been ignoring an input SWR problem on my Centaur for a while and decided
to take a look at it today. 10 and 15 are higher than the others, (about 1.8 to
1) The others range from 1.1 to 1.3 to 1. Is that typical? If not, the 81763
10/15 meter optional filter board seems to be a likely culprit, but there's not
much circuitry on it. Thanks, Joe, K8MP
_______________________________________________ TenTec mailing list
TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|