[Amps] Transformer secondary winding resistance

2 2 at vc.net
Wed May 21 07:54:11 EDT 2003


>Can someone tell me what's the issue with secondary winding resistance 
>in a plate transformer? I heard the ones Dahl makes are very low, someone wrote
>me once and mentioned .6 ohms?? for a 5kv output. its either a really big
>transformer or there was a mistake????
> 
€   Dahl transformers have low winding resistance because he uses a high Mu Hipersil ® core.   High-Mu enables him to use  a minimal number of turns, which provides room for using larger diameter wire.  For SSB applications, take Dahl's VA rating and multiply it by c. 3 to arrive at max pep out.  For example, a Dahl 4500VA transformer will produce 14 out with minimal heating.  
http://www.vcnet.com/measures/Building_ugly_amplifiers.html
see 8170 amplifier

>My magcap is 68 ohms, someone mentioned this was too high. According to
>Rich's
>web site it makes 1.33a Continuous at 2700+ volts..which is OK for me. 
> 
>just curious. I did some poking on the reflector but I think this was
>brought up way back and
>didn't see it.
> 
>thanks-
> 
>KA1MWP
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Rich, AG6K, 805-386-3734, www.vcnet.com/measures




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