Quote:
Originally Posted by vortalexfan
So no one on here has answered my question regarding the bias network resistors, would bad bias network resistors cause my low voltage rectifier tube to arc and redplate especially if they were drifted up in value way past the 20% tolerance range of the part?
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No. If that 15Ω resistor (or any resistor 'downstream' of it it) drifts upward, it will not increase load on the 5U4. In fact if the 15Ω drifts upward, it will reduce the load very slightly. Conversely, if it were dead shorted (say the 500µf cap across it were shorted), it would increase the load very slightly.