. Electronic apparatus for biological research . HT+ Figure as the 'output' or 'carry' cathode. Electrodes 2-5-8 ... 29 are connected together and brought out as 'first guides' and similarly 3-6-9 ... 30 as 'second guides'. The gas filling is neon. The circuit diagram is as in Figure Consider now the circuit in Figure On applying the HT the glow strikes between the anode and one of the cathodes, the «th say. There is no possibility of the glow bridging the anode and one of the guides because the latter are biased such that the potential difference is insufficient. However,
. Electronic apparatus for biological research . HT+ Figure as the 'output' or 'carry' cathode. Electrodes 2-5-8 ... 29 are connected together and brought out as 'first guides' and similarly 3-6-9 ... 30 as 'second guides'. The gas filling is neon. The circuit diagram is as in Figure Consider now the circuit in Figure On applying the HT the glow strikes between the anode and one of the cathodes, the «th say. There is no possibility of the glow bridging the anode and one of the guides because the latter are biased such that the potential difference is insufficient. However, if a negative pulse of sufficient magnitude be applied via a 650
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