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interesting link,
it notes the same problem i did regarding constant current bias not having the ability to track modulation of the signal due to the bias circuits very high output impedance,
their answer was to add a current boost pass transistor to make it act like a constant voltage source but that also degrades their circuits ability to track temperature changes in the rf devices,

im interested to see what circuit ken has in mind and how it operates

[QUOTE="bob85, post: 169571, member: 18"] interesting link, it notes the same problem i did regarding constant current bias not having the ability to track modulation of the signal due to the bias circuits very high output impedance, their answer was to add a current boost pass transistor to make it act like a constant voltage source but that also degrades their circuits ability to track temperature changes in the rf devices, im interested to see what circuit ken has in mind and how it operates:thumbup1: [/QUOTE]

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