BLIND-HAMS Archives

For blind ham radio operators

BLIND-HAMS@LISTSERV.ICORS.ORG
Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
20m reduced output
From:
Michael Ryan <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Fri, 4 Apr 2014 23:22:26 -0230
Content-Type:
text/plain
Parts/Attachments:
text/plain (8 lines) 
Hi all: 

I run an Ameritron al811h and when I use a 20w tune up drive level, with the amp controls preset as instructed, I only get 60w out. 
I have to turn the plate and load along way counter clockwise to get 80w out. I noticed that my load pointer was past the 2 mark. I also got my XYL to read my grid and plate while I keyed the amp while advancing my 102s drive and it took about 45w to grid to 150 and the plate to 450. Something's not right. On 15m I get 500 and on 40/80 I get 600 all with 50 of drive. With 75 of drive I get over 600 on 15 and 740 on 40/80. I don't see how one of my tubes are bad with numbers like that. 20m? 240 with 75. I was suggested to check the SWR between the rig and amp but dunno how. 

73: 
Mike VO1AX

ATOM RSS1 RSS2