OT Don't read this (was Re: Altair MBL source)

[Tony Duell]

> 
> 
> From: "Tony Duell" <ard at p850ug1.demon.co.uk>
> >
> > Whether there existed sets with, say, an EB91 (double diode, I think you
> > call it a 6AL5) for the FM detector and an EBC91 (say) for the AM dector,
> > AGC, and 1st audio, I don't know, and I am not looking for such a
> > schematic tonight!.
> >
> > -tony
> >
> 
> The Hacker Mayflower 2 I have on the bench at the moment uses an EB91 as FM
> detector, but appears to have no AGC (it is FM only). The is a preset (rear

I am not in any doubt that the EB91 was used as an FM demodulator. What I 
was asking about was sets that had effectively 4 diodes for FM 
demodulator, AM detector and delayed AGC. 

I've enver had the pleasure of working on a Hacker (what a wonderful 
name!) valved radio. Their transsitor sets are some of my favourites, 
though, particularly the RP18 Sovereign. It has separate IF strips for AM 
and FM -- the only common stages are the audio ones. And a decent audio 
amplifier and speaker specified to give 1.5 honest watts.

-tony