[AMPS] Plate transformer, chimneys

Rich Measures measures@vc.net
Sun, 2 May 1999 18:04:26 -0700




>
>
>
>On Sun, 02 May 1999 10:03:47 -0700 Vic Rosenthal <rakefet@rakefet.com>
>writes:
>> 
>> I've got just about all of the parts for my 2 x 3-500z amplifier 
>> except the plate transformer.  I haven't been able to find one of 
reasonable 
>> size and weight inexpensively, so I'm thinking about buying one from Dahl.  
>
>
>Inexpensive and Dahl do not work in the same context.
>
€  However, amateur radio guys who go shopping for a Dahl Grade E-core 
hipersil transformer tend to act like aborigine guys when they go 
shopping for a new phallocarp.  .-- i.e., they tend to buy a larger unit 
than what is called for.  .  .  As a rule of thumb, for ssb service, 
Dahl's continuous VA rating can be multiplied by three to arrive at PEP.  
In other words a 1000VA rated grade-E transformer should be good 3kWPEP 
on SSB.  
>
>.....  For intermittent service such as SSB/CW the
>doubler can actually be more efficient since it uses a larger guage
>secondary wire; 

€  good point.  .  .  IOW more copper and less paper.  




Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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