[HBR] GETTING READY TO BUILD AN HBR (MAYBE THE 13C)

[bignick at execpc.com]

If it's the one I'm thinking of, it was the first superhet that I
built.

I really learned alot about the technology by building
that radio!
Here are a couple links:

http://www.bignick.net/Morgan_Radio/Radio_19.htm

http://www.youtube.com/watch?v=F_0DDkXPd60

--BN


> Well, since I am still in the "work-for-money" mode
and can't devote REAL
> serious time yet to HBR-ing, I decided to
take some advice from you all
> and first build a less daunting
receiver.
> 
> Please have a look at photos of my 80 meter
superhet out of the Lindsay
> Book no. 5 (the PS from book no.
1).
> 
> You can see it all on my QRZ-dot-com webpage,
under AA2YV.
> 
> The only things I need to do to get it
right are:
> 1. Retap the Local Oscillator coil so that I can get
more bandspread out
> of the tuning cap. At present, I have it
taped at 9 1/2 turns out of 21
> 1/2 turns, which gives me only
50% use of the tuning cap. I am going down
> to about 70% of that
9 1/2 to see if that works.
> 2. The volume control that goes into
the IF amp (6SK7) is controlled by a
> 5K pot. I have only 4.4 K
in there, but the volume at the bottom is still
> loud. So I will
try a 10K pot.
> 
> This little wonder has only 3 bypass
caps ! And, I get little to no AC
> hum.
> 
> My
wisdom on building this: Don't, unless you want to spend oodles more
> time cutting identical cardboard boxes, painstakingly rolling the
solenoid
> coils and then making sure you don't gouge your
aluminum foil ground plane
> with a careless screwdriver jab. But,
it was fun while it lasted.
> 
> 73's
> Bill
AA2YV
> 
> Dr. William Hopkins, Prof. of German
>
Coord., Berlin Residential Program
> Foreign Languages &
Literatures Dept.
> Nazareth College
> 4245 East Avenue
> Rochester NY 14618
> Off: 585-389-2359
> Fax:
585-586-2452
> 
>
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