I'm kind of behind on podcast production, but once again I have a good excuse: I've been melting solder. I decided to finally finish the Kick Panel DSB rig that I started building back in London. It is built on a kitchen cutting board purchased in a Dyas store in Windsor. The cabinet is fashioned from an aluminum kick panel for a door (a pub door!).
I originally intended this to be just a transmitter (for use with my trusty Drake 2-B) but it is so easy to add a direct conversion receiver to a DSB rig that I just threw together a version of the NE-602 LM386 Neophyte receiver and hooked it up to the 75 meter VFO. It sounds great. I love DC receivers. They seem to connect you directly to the ether. And now I'll have a complete 75 meter DSB station in one box.
This morning I tested the balanced modulator (singly balanced with two diodes). DSB is being generated. All I have to do now is put a little 6 db pad between the modulator and the amplifier chain, then work on the antenna a bit and I should be on 75. The amplifier chain dates back to the period when Mike, KL7R, and I were using LTSpice to design amps....
I was very pleased to include in this rig a part that Michael, AA1TJ, sent me: I have a little 10.7 MHz IF can in the front end of the RX. A cap allows it to tune in 75 meters. Thanks Mike!
I hope to get a podcast out this weekend (if the computers cooperate -- the Sony Vaios "light bulb-repaired" laptop finally gave up the ghost last weekend.)
In response to popular demand, "SolderSmoke -- Global Adventures in Wireless Electronics" is now available as an e-book for Amazon's Kindle.
Here's the site:
For the print version:
For shipping from a printer in the U.S. (probably better for N. American buyers) Click here: SolderSmoke USA Version
For shipping from a printer in the UK, Spain, or the USA (probably better for UK and other European buyers)
Click here: SolderSmoke EU Version
The two versions are identical, except for a minor difference in the paper used. That's why the prices are a bit different.
Bill's OTHER Book (Warning: Not About Radio)
Click on the image to learn more
W4HBK's QRSS Grabber: The Amazing Pensacola Snapper (Live!)