My friend plays in an awesome Zeppelin tribute band that focuses on TSRTS live era, and the rumor is Page had KT88's in his plexi at the time. I installed a quad in his Metroamp 68 12000 head and we both thought it sounded great, more open and clearer than the EL34's. I changed the bias resistor, rebiased, and that was it, same as Royal amps (determined from pics).
I have a pretty good Page preset started but I want to simulate this in the AF3. From reading the Tech Notes, it's my understanding that if the OT in the plexi has a primary impedance of 1.75k, and the KT88's are usually installed in a circuit that has an OT with a 2.4-2.6k primary impedance (not 100% certain of these KT88 OT numbers, got them from a quick internet search), then I should set the Transformer Match level to about 0.7? Determined this by 1.75k/2.5k = 0.7. Going to try it tonight to see how it sounds. Anybody play around with this to see how it sounds?
I have a pretty good Page preset started but I want to simulate this in the AF3. From reading the Tech Notes, it's my understanding that if the OT in the plexi has a primary impedance of 1.75k, and the KT88's are usually installed in a circuit that has an OT with a 2.4-2.6k primary impedance (not 100% certain of these KT88 OT numbers, got them from a quick internet search), then I should set the Transformer Match level to about 0.7? Determined this by 1.75k/2.5k = 0.7. Going to try it tonight to see how it sounds. Anybody play around with this to see how it sounds?
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