[ARC5] ARA heater configuration

[AKLDGUY .]

Thanks Jack. I can't recall ever seeing a 12SF7 in the lineup in a set
here, which might mean that ARA and SCR-274-N were by far the most
common models left in ZL post-war.

73 de Neil ZL1ANM


On 7/5/16, Jack Antonio <scr287 at att.net> wrote:

> There is a "gotcha" here.
>
> The receiver filament circuit will be exactly the same between the ARA
> and SCR-274N.
>
> However, the AN/ARC-5 receivers use a 12SF7 as the second IF amp, which
> has a different basing diagram from the 12SK7 used in the ARA and SCR-274N.
>
> Just something to be aware of.
>
> Jack Antonio WA7DIA/4