[Amps] Transformers

[R L Measures]

On Jul 16, 2006, at 5:24 AM, Gudguyham at aol.com wrote:

> In a message dated 7/16/2006 8:13:55 A.M. Eastern Standard Time,  
> r at somis.org writes:
> > The SB-220 was rated at 2KW PEP input which is 1 KW DC input.
>
> I don't see how.
> You don't see how....What?

> Am I mistaken that the Sb-220 was rated at 2KW PEP input?

No

> It does say it on the front panel, though it does not say "input"  
> it does say 2KW amplifier.  Or...Do you mean to say that 2KW is not  
> the same as 1KW DC input?

Correct.  I'm saying that there is no 2 to 1 ratio between PEP input  
and DC indicated input.

> There has been a lot of discussion over the years, especially in  
> the early days when one did not have a PEP reading watt meter.  So,  
> the rule of thumb "at the time" was that PEP was ~ twice the  
> average DC input.  SO...What don't you see?

That the rule of thumb is accurate.

>
> If you will recall the poster's original question you did not give  
> him an answer.  If you have a better explanation to his question,  
> PLEASE do so.  Lou

R L MEASURES, AG6K. 805-386-3734
r at somis.org