[AMRadio] Valiant carrier...

[Phil LaMarche]

Progress.  Great!

Philip LaMarche
 
LaMarche Enterprises, Inc

Phil at LaMarcheEnterprises.com
www.LaMarcheEnterprises.com  
 
727-944-3226
727-937-8834 Fax
727-510-5038 Cell 
 www.w9dvm.com
K3 # 1605
KPA500 # 029

 CCA 98-00827
CRA 1701
W9DVM
 


-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of Rick
Sent: Wednesday, June 15, 2011 2:50 PM
To: amradio at mailman.qth.net
Subject: [AMRadio] Valiant carrier...

How efficient is the RF stage of the Valiant? The manual seems to claim
about 75% but I haven't been able to achieve that. I have read that the
Valiant prefers the original 6146 to any of the later versions. Can someone
tell me how critical this is? I am using 3-6146A's and wonder would I get
better performance from the plain 6146? I am afraid the turret capacitors
are breaking down under load and causing a little problem with output. So
far, 100 watts of carrier in the AM mode is the maximum I have achieved.
That's running 8 ma drive and 330 ma plate current. All tube voltages are
well within tolerance.
Thanks for any advice you may give.
Rick / K5IAR

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