. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. SINE WAVE OSCILLATORS tends to increase, increasing the negative feedback. The outputs are in push-pull and the magnitude determined by the variable resistor. It is quite easy to get 50 V peak to peak with good waveform from each anode, with this circuit. A complete oscillator, using the Wien bridge principle, and very suitable for checking electrophysiological apparatus, has been published by Scroggie^, HT+. Figure Figure see also Sinfield^. A very ingenious form of phase shif
. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. SINE WAVE OSCILLATORS tends to increase, increasing the negative feedback. The outputs are in push-pull and the magnitude determined by the variable resistor. It is quite easy to get 50 V peak to peak with good waveform from each anode, with this circuit. A complete oscillator, using the Wien bridge principle, and very suitable for checking electrophysiological apparatus, has been published by Scroggie^, HT+. Figure Figure see also Sinfield^. A very ingenious form of phase shift oscillator of novel design has been described by Raistrick^". It is claimed that no regulating device is required, and only one resistance has to be altered to adjust the frequency; three valves are, however, necessary. A similar device which can. 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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