Amps
[Top] [All Lists]

[AMPS] DRAKE L-4B bringing back to life !

To: <amps@contesting.com>
Subject: [AMPS] DRAKE L-4B bringing back to life !
From: 2@vc.net (measures)
Date: Thu, 23 Nov 2000 17:19:35 -0800
>
>> Other than the normal high voltage pre-cautions and reforming of the caps,
>> are there any other specifics I should look out for on the DRAKE L4-B.
>
>
>The tubes. 3-500Z's often don't do well sitting for years. They tend 
>to gas up a bit, and may flash over when powered up.
>
story time

>The gettering agent is coated on the anode, and needs to be real 
>hot before it activates fully.  It would be better if you ran the amp on 
>CW position and heated the anodes to a dull red before applying 
>SSB voltage.  

Graphite anodes are not coated with a gettering agent.  Heating graphite 
anodes results in a release of stored gas.  

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


--
FAQ on WWW:               http://www.contesting.com/FAQ/amps
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com


<Prev in Thread] Current Thread [Next in Thread>