| The scanner is an extension for the 'AlI-solid-state preamplifier' published tn the December 1989 / January 1990 issues of this magazine....
| The scanner is an extension for the 'AlI-solid-state preamplifier' published tn the December 1989 / January 1990 issues of this magazine....
| In all cases where reception of Kalundborg is marginal using the ferrite rod at the input of the S042P. The two-stage preamplifier shown...
| Using a National LM39 l l IC, a l mA meter and a few resistors it is a simple matter to construct a thermometer to measu...