[ARC5] BC-453 Current Draw

[Scott Robinson]

Hi Philip,

Until you clip the class A output stage, the current drain won't vary 
much with audio volume. Then, as the rectified drive increases the 
bias,the current will probably go down. However, the AVC turns the front 
end tubes' plate and screen currents up and down, so the worst case is 
likely to be no input signal.

Regards,

Scott

On 1/20/15 3:40 PM, Phillip Carpenter wrote:
> To All Command Set Owners:
>
> Could all of you that can and have actual data please post the B+ voltage you use and current drawn for your BC-453 receiver (or other Command Set receiver, BC-454, BC-455, BC-946)?
>
> I am trying to draw a B+ volts to current draw curve. It would be nice if all could state the current draw at full AF and at 1/2 AF volume, if possible so I can have an idea what the normal and max operating current draws are for the receiver.
>
> This is a learning experiment and I thanks those who can participate for your help!
>
> Ideally the curve would go from 24v to about 250v. We'll all be able to see how the current draw follows the B+ voltage used.
>
> Many thanks!
>
> Phillip
>
> Sent from my iPhone
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