[HBR] HBR-67
n2ey at aol.com
n2ey at aol.com
Wed Feb 6 13:03:37 EST 2008
Yes - in the 1967 Handbook!
It's a very straightforward design. Basic rx tunes 80/75 meters,
converter for the other bands is switched in ahead.
IIRC 80/75m section is 7360 mix (single-ended), 2-6BA6 IF, SS diode
product detector, 12AX7 audio/AGC. Not sure what was used for the BFO
and audio output. Converter used a compactron for the mixer, oscillator
and cathode-follower.
RX has audio AGC and S-meter, SSB-bandwidth mechanical filter, built-in
solid-state power supply with VR tube. B+ is only 180 volts IIRC. Dial
was a Miller two-speed, not an Eddy 898.
A good basic design but I wouldn't copy it exactly.
73 de Jim, N2EY
-----Original Message-----
From: Tim Shoppa <tshoppa at wmata.com>
To: hbr at mailman.qth.net
Sent: Wed, 6 Feb 2008 11:24 am
Subject: [HBR] HBR-67
The 1969 ARRL Handbook has a receiver for 80M that credits W1DX's
HB-67 as being an inspiration. 7360 in the front end, single conversion
to a 455kHz IF. Cookbook-style links to a multiband
converter for other bands are illustrated.
Was the HB-67 design ever published?
Tim N3QE
************************************
Visit the HBR Receiver Web Site with over 100 pictures of receivers and
construction notes...... via http://www.qsl.net/k5bcq/
there is also a mirror (faster response)at http://k5bcq.edebris.com/
Retrieve reflector archived data via
http://mailman.qth.net/mailman/listinfo/hbr
________________________________________________________________________
More new features than ever. Check out the new AOL Mail ! -
http://webmail.aol.com
More information about the HBR
mailing list