11-12-2016, 12:33 PM
Russ
I never liked serialized filaments idea: for one, one tube dies and the rest extinguishes. And you have to figure which one.
Then in some places it can result in some bad scenarios. Like in Zenith portable radios.
I am fond of the idea using things as they are intended. Need a bias, use a resistor.
These off label usage is fine for cheap stuff where quality is traded off for space/cost.
Not in high end audio.
I never liked serialized filaments idea: for one, one tube dies and the rest extinguishes. And you have to figure which one.
Then in some places it can result in some bad scenarios. Like in Zenith portable radios.
I am fond of the idea using things as they are intended. Need a bias, use a resistor.
These off label usage is fine for cheap stuff where quality is traded off for space/cost.
Not in high end audio.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
