[Milsurplus] Ray's mystery box

[ed sharpe]

thought so...

the other fellow had thought it was part of a radar "The unit was the
receiver for a
~400mc radar ranging pair, of which the tx would be an APT-5 or such, using"

It has been awhile since I had played with  the things in the
countermeasures display but thought I remembered it correctly!

ed

----- Original Message ----- 
From: "Scott Johnson" <scottjohnson1 at cox.net>
To: "ed sharpe" <esharpe at uswest.net>; "Eric Jones" <ejones at hiwaay.net>;
<milsurplus at mailman.qth.net>
Sent: Friday, August 27, 2004 8:01 PM
Subject: Re: [Milsurplus] Ray's mystery box


> Correct, Ed
> It is a carpet jammer, late WWII , 15 watts, designed to jam the Wurzburg
> radars.
>
> Scott
> ----- Original Message ----- 
> From: "ed sharpe" <esharpe at uswest.net>
> To: "Eric Jones" <ejones at hiwaay.net>; <milsurplus at mailman.qth.net>
> Sent: Friday, August 27, 2004 6:35 PM
> Subject: Re: [Milsurplus] Ray's mystery box
>
>
> > APT 5....  isn't that  a countermeasures transmitter?   I seem to
remember
> > it as such...
> >
> > ed sharpe
> > ----- Original Message ----- 
> > From: "Eric Jones" <ejones at hiwaay.net>
> > To: <milsurplus at mailman.qth.net>
> > Sent: Friday, August 27, 2004 5:15 PM
> > Subject: [Milsurplus] Ray's mystery box
> >
> >
> > > de N4TGC Eric
> > >
> > > Ray's mystery box does sound like an early v. of the ASB (Aircraft,
> > Special,
> > > Bombing) gear.  I have schematics for the ASB-5 and -7, which describe
> > much like
> > > his, except the front end is composed of three 446A 'lighthouse' tubes
> for
> > RF
> > > amp, 55mc converter, and HF osc., followed by a string of six 6AC7's,
> the
> > third
> > > of which is a second converter on 16mc (fed by a 6AC7 as 71mc osc);
then
> a
> > 6H6
> > > detector, 6AC7 video amp., and 6AG7 video PA.  The unit was the
receiver
> > for a
> > > ~400mc radar ranging pair, of which the tx would be an APT-5 or such,
> > using
> > > 3C22, more 6AC7's, 829B, 6AG7, and 6LG7 (huh?! - have to look that one
> > up!)
> > >
> > > The front might have a power jack in the lower right, tuning gearbox
> above
> > that;
> > > a couple of spring-loaded covers over other tuning adjustments; a quad
> of
> > jacks
> > > for sensitivity switch, video in, rcvr out, and rcvr input.  Can't
> really
> > tell
> > > the size from the illustration in Caringella and Clark's book.
> > >
> > > Probably a pretty useless piece of 'looky-here', but probably rare,
too!
> > e
> > >
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