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I'd like to add Grid Bias to my Hygain Amp (using LooseCannon's Schematic) to extend tube life (6JU6's currently) and clean up the signal a bit.
What Bias voltage should I aim for to enable the best result? Tube datasheet shows -55vdc maximum for Grid 1.
Is there any advantage to putting max voltage on the grid? Is a happy medium (maybe -25vdc) better for the result I hope to get?
1 KW LDMOS 1.8 - 60MHz power amplifier board fully assembled. The board comes with new devices installed from Digikey onto copper. The boards are made of 2oz copper traces. This amplifier pallet is capable of up to 1KW MAX. Comes fully assemb...
This was buried in another thread and deserved it's own place.
Amplifier Class Description Conduction Angle
Class-A Full cycle 360o of Conduction θ = 2π
Class-B Half cycle 180o of Conduction θ = π
Class-AB Slightly more than 180o of conduction π < θ < 2π
Class-C Slightly less than 180o of conduction θ < π
Class-D to T ON-OFF non-linear switching θ = 0
Lets get some fundamental myth out of the way .
Solid-state amplifiers cannot be class "AB1" or class "AB2". A bipolar transistor amp cannot be a sub 1 or sub 2 class...
That gcode is still around somewhere...
NXP
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It's just numbers.
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