Re: [Amps] Transformer shop update

[craxd <craxd1@ezwv.com>]

George,

I was actually going to make them heavier than that. The screen windings 
were going to be rated at 250 mA, the bias at 125 mA, the 12 V at 2 
amperes, and the 6 V winding at 10 amperes. Most all the supplies will 
have losses and actually require more current than the DC output. These 
will be able to run full wave, half wave, and doubler circuits with room 
to spare, running at CCS. I wanted to do this to keep the heat way down 
to where they could be mounted in chassis that wasn't ventilated well. I 
figured a rough price of $100.64 each with a watt rating of 205 watts to 
compare to Dahls pricing of similar. These use an EI 1-5/8" laminate 
1-1/2" in depth. The physical size of the core is 5-1/4" wide x 4-3/8" 
high x 1-1/2" deep, with the steel weighing 8 pounds. The estimated 
finished weight will be about 12 pounds. You can look up a similar 
transformer at Dahls website weighing 12 pounds and 205 watts. Thanks 
for the interest, I should be up and running around December.

Best & 73's

Will Matney

gdaught6@stanford.edu wrote:

> Hi Will,
>
>  
>
> > By December, we should be winding as scheduled. I will first be
> > offering some screen/bias transformers with heater and control
> > windings included. The screen will have taps for 315 Vac, 275 Vac, and
> > 236 vac. That will give 445 Vdc, 389 Vdc, and 334 Vdc. 
> >    
>
> At how many mA?  100mA would be good.
>
>  
>
> > They will have
> > a 90 Vac bias winding, 12 vac control winding, and 6 Vac heater
> > winding. 
> >    
>
> One Ampere on the 12v winding; and how many on the heater winding?  
> Heater for what?
>
> If the price is right, I'd like one (or even two!)
>
> I hope there's enough of a market to make it worth your while!  Good 
> luck, and keep us posted on the Amps reflector.
>
> 73,
>
> George T. Daughters, K6GT
>
>
>
>
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