[Amps] R. MEASURES PRAYERS ANSWERED

[Steve Thompson]

R L Measures wrote:

> Just how the AL-1500's designer came to the conclusion that 5000-ohms  
> of feedback XC at the tube's max freq rating could not cause  
> oscillation is a mystery.

Maybe he didn't. Feedback C is but one of many factors contributing to 
oscillation, and one over which the designer has no influence. Perhaps 
he believed/designed/intended that other elements of the circuit 
prevented gain>1 and phase=0 without the need for an anode auppressor.

Steve