The Phoenix QRP Transceiver Rising from the Ashes of a Junked TV Part Ⅱ

摘要

In Part I of this article (June 2004 issue), we discussed how to salvage parts from junked TV sets and VCRs to build something new- the Phoenix QRP transceiver (photo E). Now it's time to build and test the rig. Figs. 5 and 6 show how I built the case. Photo F shows the interior parts layout. The schematic is in Part I, or if you've misplaced that issue, on the CQ website. Ground-plane construction, also called "ugly" or "Manhattan" style, is the only way to go with a project such as this, because there is no telling about the sizes of the salvaged components, and you will want to be free to make improvements to the circuit once you get the basic configuration working. Ground-plane construction uses a single-sided, copper-clad circuit board, copper-side up, with 3/16-inch squares of circuit-board material super-glued to the copper surface to form the pads where component leads are soldered. A parts-placement diagram showing the layout I used is in fig. 7. The dark circles are solder connections to the copper ground plane. Use this as a guide; your parts sizes may be different from mine.