[HBR] HBR-11 Template??

[B Smith]

I have never been able to successfully use the 
Command Set BFO coil in a Hartley
configuration. We would be interested in your 
results and a diagram?
Breck k4che


--------------------------------------------------
From: "Ian Wilson" <ianmwilson73 at gmail.com>
Sent: Friday, June 17, 2011 10:43 AM
To: "HBR Receiver List" <hbr at mailman.qth.net>
Subject: Re: [HBR] HBR-11 Template??

> If it's in its original state, the ARC-5 BFO 
> coil is better than tapped: it
> has two windings!
> There are also (if I recall correctly) two fixed 
> and one trimmer capacitor
> in the can. So
> you can build a Hartley if you wish.
>
> If have built 85kHz BFO oscillators using an RFC 
> (5mH?) in a Clapp-type
> configuration.
> That worked out very well in terms of tuning 
> range with a 100pF variable
> capacitor.
>
> Most solutions will work fine at this frequency, 
> stability is unlikely to be
> an issue.
>
> 73, ian K3IMW
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