[Amps] transformers

[Joe Isabella]

>From the manual...

Power Requirements:
230VAC, 2 or 3 wire, 30A, Single Phase

Input Power:
3kW PEP SSB, 1kW AM, 2kW CW/FSK

Drive power required:
80-150W

Output Power:
2kW PEP minimum
...

Power supply has been modified with Dahl parts and will hold its HV pretty well.  Easily 3800V+ under load.

I usually drive it with 80-90W for illegal limit, er I mean "legal" limit, no ALC -- radio will do 150W.

:-)

Joe

----- Original Message ----
From: Gudguyham at aol.com
To: n3ji at yahoo.com; cherokeehillfarm at earthlink.net; w8ji at w8ji.com
Cc: amps at contesting.com
Sent: Monday, July 17, 2006 5:55:15 PM
Subject: Re: [Amps] transformers

 
In a message dated 7/17/2006 10:50:19 A.M. Eastern Standard Time,  
n3ji at yahoo.com writes:

I can  get nearly 2.5kW PEP output measured on the VFD (predecessor to the 
WX0B  PowerMaster) out of my Henry 3K-A with a pair of 3-500ZGs and almost 4kV 
on  the anodes with 150W+ drive.  Do I do that?  No, but it's possible  with 
enough "umph"...
 
Sorry  I asked about the "2kW..." marking on the '220...  
 



The Henry 3KA is rated at 3000watts PEP input. It runs pretty high plate  
voltage (more than any other amp I have seen) on 3-500's.  It has one great  big 
transformer!!  I don't doubt it could make at least 2KW out with 150  watts 
drive.  We've made it routine to swap out the 3-500's for 3CX1200A7  tubes in 
that amp and easily makes about 3500 watts output.
 
 
Don't be sorry you asked the question.....later   Lou
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