02-11-2018, 02:02 PM
How about this quick and dirty test.
Mullard 3-3 running low HT at 244v.
Scope and audio power meter running 1Khz input sine wave.
EL84 2.7w RMS at the onset of clipping.
EL86 (NOS) 2.1w RMS at the onset of clipping.
PL84 (NOS) 2.6w RMS at the onset of clipping, (Heaters fed from Labpack)
No other tests done.
Mullard 3-3 running low HT at 244v.
Scope and audio power meter running 1Khz input sine wave.
EL84 2.7w RMS at the onset of clipping.
EL86 (NOS) 2.1w RMS at the onset of clipping.
PL84 (NOS) 2.6w RMS at the onset of clipping, (Heaters fed from Labpack)
No other tests done.
