[ARC5] IF transformers.

[Kenneth G. Gordon]

On 16 Jun 2013 at 11:53, neilb at ihug.co.nz wrote:

> What I'm building up to asking is this:
> If a 3rd IF transformer is fitted into the 1st IFT position, does its 
> primary
> now get used as the secondary and vice versa?

Good question. I don't think so.
 
> The tap? Is it still active

Not as far as I can tell.

> or does the entire winding get brought into use

Yes.

> (I don't know whether the "top" of a 3rd IFT secondary is actually brought
> out to a terminal).

It is.

> 
> If the "top" is not used and the tap is active, does the tap become the B+
> terminal for the 12K8 plate, the plate terminal itself, the "grid" of the
> 1st 12SK7, or the cold end of the grid winding?

Dunno. I'll have to look, but these are interesting questions.

> Does the radio work well in this condition? There are some conditions
> that I've just described where it ought not to.

As I said, I'll have to try it to see.

However, in this case, as Robert Downs accurately surmised, the outer case was simply 
installed backwards.

Ken