Re: Battery bias directly to grid

For those who cannot see it, the circuit consists of a DACT 20K ladder
attenuator to ground, then two AA 1.2V batteries in series from the
wiper of the attenuator to the grid of a 417A tube. The cathode of the
tube is connected directly to ground. That is the entire circuit under
discussion. -- AJ


Andre Jute wrote:
> I've posted a circuit for discussion at:
>
> http://members.lycos.co.uk/fiultra/Discussion%20Circuits.htm
>
> What are the implications of this circuit?
>
> What, theoretically, makes it better than the standard battery bias
> application in the cathode circuit?
>
> Will the batteries charge as efficiently in this position as in the
> cathode circuit; what are the effects of the resistors topping and
> tailing the battery set?
>
> What are this circuit's dangers?
>
> Are there alternatives that work better or are safer?
>
> Andre Jute

.

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