[ARC5] BC-221 parts request

[Roy Morgan]

The crystals are different in the pin out I believe. The holders are very similar - metal tube shaped octal based. BUT adding jumpers on the crystal socket solves the problem. 

Whether the required circuit capacitance is different I do not know. But BC-221's have a trimmer on the crystal circuit (behind the name plate on at least many of them)

The mixer tube (6K8?) may be more expensive than the others. 

Roy

Roy Morgan
K1LKY Western Mass

> On May 24, 2020, at 5:39 PM, Hubert Miller <Kargo_cult at msn.com> wrote:
> 
> There is a fellow in Italy who posts on the " regenrx " , regenerative receivers group.
> He has a BC-221 with book, but without tubes or crystal.