[Milsurplus] RBZ vs RBZ Special?

[Mike Feher]

Ian -

There are three tuned circuits that would require change using the same IF.
That was why I was asking about the direction on the scale for increasing
frequency between the two models. Regardless, I just do not see a simple way
to do this in the field. 73 - Mike 

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960 


-----Original Message-----
From: milsurplus-bounces at mailman.qth.net
[mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of Ian Wilson
Sent: Tuesday, September 17, 2013 12:03 PM
To: Mike Feher
Cc: WA5CAB at cs.com; Military Surplus net List
Subject: Re: [Milsurplus] RBZ vs RBZ Special?

If the frequency coverage has doubled, does this suggest that a harmonic of
the original LO is being used?

73, ian K3IMW



On Tue, Sep 17, 2013 at 8:58 AM, Mike Feher <n4fs at eozinc.com> wrote:

> Bob -
>
> Not a matter of right or wrong, I am just curious as to how this 
> frequency change may have been performed in the field as claimed on 
> here. - Mike
>
> Mike B. Feher, N4FS
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960
>
>
> -----Original Message-----
> From: milsurplus-bounces at mailman.qth.net
> [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of WA5CAB at cs.com
> Sent: Tuesday, September 17, 2013 11:46 AM
> To: milsurplus at mailman.qth.net
> Subject: Re: [Milsurplus] RBZ vs RBZ Special?
>
> Oops, you're right.  Then the coils were not changed.
>
> In a message dated 09/17/2013 10:31:26 AM Central Daylight Time, 
> n4fs at eozinc.com writes:
> > This receiver tunes with slug tuned coils as I recall, and not a 
> > variable condenser. 73 - Mike
> >
> > Mike B. Feher, N4FS
> > 89 Arnold Blvd.
> > Howell, NJ, 07731
> > 732-886-5960
> >
> >
> > -----Original Message-----
> > From: milsurplus-bounces at mailman.qth.net
> > [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of 
> > WA5CAB at cs.com
> > Sent: Tuesday, September 17, 2013 11:28 AM
> > To: milsurplus at mailman.qth.net
> > Subject: Re: [Milsurplus] RBZ vs RBZ Special?
> >
> > Double the coverage would be expected if the same tuning capacitor 
> > is used (for examples, consider the TCS and the SP-200 Super Pro
family).
> >
> > Robert Downs - Houston
> > wa5cab dot com (Web Store)
> > MVPA 9480
> >
> > In a message dated 09/17/2013 10:11:58 AM Central Daylight Time, 
> > n4fs at eozinc.com writes:
> > >Joe -
> > >
> > >Does the frequency scale in the Special still increase in frequency 
> > >when the dial is turned clockwise, or, does it decrease. It is also 
> > >interesting to note that the frequency range covered in the Special 
> > >is twice as wide. 73
> > >-
> > >Mike
> > >
> > >Mike B. Feher, N4FS
> > >89 Arnold Blvd.
> > >Howell, NJ, 07731
> > >732-886-5960
>
> Robert & Susan Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480
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