Long tailed-pair using the same valves, usually with betterĪnother common criticism of the cathodyne is that its output signal swing is less than that of a Stage the combination will provide about twice the overall gain of a ![]() The main drawback of the cathodyne is that its gain is limited to slightly less ![]() Or 'concertina inverter' because the shape of the output sine waves The circuit is also known as the 'split load' Must also be equal in magnitude (if we use equal loads), but out of Through both anode and cathode loads, the signals generated across them At the same time, voltage drop across the cathode load fallsĪnd cathode voltage therefore also falls. Voltage drop across the anode load also falls and anode voltage therefore It is true that without due care and attention the cathodyneĬan give some fairly ugly overdrive tones, but this is avoidable, if we are willing toĪbandon a couple of the 'traditional' design attitudes.įirst, let's look at how it works. However, it does carry something of a bad Used in many popular guitar amps including the Fender (push-pull) Princeton, ![]() The cathodyne phase inverter is similar to the cathode follower in design,īut the total load resistance is divided in two and shared between the
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