In Figure 6 of "Old Amplifiers -- Boat Anchors or Bargain Basement Opportunities?" [Jan 2007, p 40], S1B's wiper is shown not connected. It should be connected to the junction of C2 and L2.

In a photo in "Product Review -- ElmerRadio Crystal Radio Receiver Kit" [Jan 2007, p 68], KB1NUN is shown soldering without safety glasses. Eye protection is required for safe soldering.

A symbol was dropped from an equation in "The World Above 50 MHz" [Jan 2007, p 81]. Under When Will the DX Start? the equation should read Rz ~ 147.

In "Audio Readout for the MFJ-209 Antenna Analyzer" [Feb 2007, sidebar p 38, 2nd paragraph], the statement about operation above 50 MHz should read: "At frequencies above 50 MHz, the signal input needs to be moved from the direct input to the prescaler input, and a jumper added from the prescaler output to the direct input."

Re the discussion of BNC connectors in "The Doctor is IN" [Feb 2007, p 57]: The other standard impedance for coax connectors aside from the usual 50 Ω is 75 Ω. In addition, the caution about different pin sizes applies just to Type N and C connectors, not the BNC.

In "Getting to Know Your Radio" [Feb 2007, pp 61-62], the discussion of transceivers with dual receivers should have included the FlexRadio SDR-1000. The latest version of its software supports two separate receivers, operating in the same band, with stereo or blended output.

In Table 1 of "Product Review -- Yaesu FT-2000 HF and 6 Meter Transceiver" [Feb 2007, pp 74-75] there are some extraneous Squelch Sensitivity numbers (for 146 and 430 MHz); these should be ignored. Also, on p 74 in the section on SSB Operation, the folks at Ten-Tec let us know that they and Yaesu do, in fact, use the same pins on their mic connectors. Be careful, though -- they do provide different voltages: 10 V on the Ten-Tec, 5 V from Yaesu.