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Tim Wescott wrote:
J M Noeding wrote: Hi can't find the notes for a minimum loss pad, anybody who remember the values? It should be easy to calculate, but I am not in the mood for doing so at the moment Here. Hot out of the math package. Assuming I know what I'm talking about it's an L with series 43.3 & shunt 86.6 (theoretical). Should be 6dB of attenuation. Faint bells ring... 43 ohms is a standard value, and 86.6 is pretty close to 100 paralleled by 680. For testing 75-ohm TVI filters in a 50-ohm system, it's very handy to make up a pair of those pads as inter-series adaptors. -- 73 from Ian G3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek |
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