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

[William Hopkins]

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