. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. Output Input HT +. Output Figure Figure obtainable. Thus a simple acceptor amplifier comprises a pentode having for its anode load a parallel tuned circuit {Figure ). The gain is^,„|Z, and we saw in Chapter 5 that V\) w^L &)^ Q' i + e 1/2 Since g^ is constant, the gain of the stage has the same form as \Zj,\ in Graph 25. Similarly a rejector amplifier might have the form of Figure The series tuned circuit is effectively in parallel with the load resistance and will
. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. Output Input HT +. Output Figure Figure obtainable. Thus a simple acceptor amplifier comprises a pentode having for its anode load a parallel tuned circuit {Figure ). The gain is^,„|Z, and we saw in Chapter 5 that V\) w^L &)^ Q' i + e 1/2 Since g^ is constant, the gain of the stage has the same form as \Zj,\ in Graph 25. Similarly a rejector amplifier might have the form of Figure The series tuned circuit is effectively in parallel with the load resistance and will have—at least near resonance—a much lower impedance than it. The gain where will be substantially g„i\Z 2\l/2 and the gain has the same form as \Zg\ in Graph 24. When we try to apply these circuits to the kind of frequencies commonly encountered in electrobiology we run at once into difficulties. Suppose it is required to build an attachment to an apparatus which selectively amphfies a rhythm at 10 c/s. Then co is about 60 and the LC product 196. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Donaldson, Peter Eden Kirwan. New York, Academic Press
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