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Low plate resistance vs. reputation for 'good tone".
152.131.10.193 |
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Posted on November 16, 2010 at 11:15:45 | ||
ECC99 vs. 6sn7. I could utilize both for driver duties in my 2a3 amplifier. Both will be biased at -4 volts. ( got a good preamp) Mu of both is 20. Supply voltage for both will be ~140v. Plates in parallel in ecc99 RP is 1.15k ohms. Plates in parallel in 6sn7 is apporox 3.75K ohms. 6sn7 has a reputaion for "good tone". Plenty of NOS to choose from. Ecc99..er....not that much. Not that many....um..only 1(?). Which would be the best choice? |