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What I had in mind was a slightly higher level
system view. So starting at the easy end, we might specify that the AF amp takes 100mW into 600 Ohms, and delivers 1W out into 8 Ohms. a biscuit to do that might take many forms but would all be interchangeable. If an audio filter were to be included, that would work in and out at 100mV into 600 Ohms with 0dB gain - and would thus be an optional fit prior to the AF amp. I'm not thinking in terms of mother and daughter boards, but of a set of standard biscuit designs that could then be assembled into whatever, test eqpt or rig. Although we'd be using small miniature components (is anything else readily available these days?) that miniaturisation does not have to feature in our biscuits necessarily, so we might have SMDs but spaced out by half-an-inch, or so, to enable us to work with them. Setting aside the infantile remarks and attention-seeking from "the usual suspects", I'm proposing that this be a joint effort. ================================= Just for information : A modular approach to homebrewing (call it biscuit building) is also very well propagated in the book : Experimental Methods in RF Design ,by W7ZOI , KK7B and W7PUA. Most modules are built in 'ugly contruction' style for best possible (RF) stability and low cost . Frank GM0CSZ / KN6WH |
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