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Kanga US |
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R1 Module - High Performance Direct Conversion Receiver - $73 (pc bd only - $10) I am not sure if I will bring back the R1 or not. Let me know if you are interested. In the meantime, if you want a "plain old DC receiver" to play with, try the improved microR1. The R1 module is a 6.5 x 9 cm (2.5 x 3.5 inch) circuit board containing an SBL-1 diode ring mixer, bandpass filtering and low distortion audio amplifier. With an appropriate local oscillator and input tuned circuit, it can serve as a direct conversion receiver for frequencies between 1 and 500 MHz, or as the last conversion stage in a superhet. Audio filter components are supplied separately. Detailed circuit description and construction information is in August '92 QST. |