I'm bad about successfully searching this forum so I'm just going to ask this. I'm building / finalizing the plans for a high gain, singled ended EL84 amp. Cathode Biased. 2 x 6N2P 1 X EL84 (Gain Stage - Gain Stage) - (Gain stage - follower) - James Tone Stack - Power ANTEK 240 volt Tube Power Transformer And this Output Transformer purchased from eBay (cross your fingers). http://rover.ebay.com/rover/1/711-5...0001&campid=5338148343&icep_item=154621949187 B+ Will probably land around 300 volts. OK, my OT has two taps, 5K and 7K. I was thinking of biasing the EL84 at a modest 20 mA to bring the tube into a zone that gives more distortion earlier and to manage volume. Regardless of the bias point I pick, however, it looks like both the 5K and 7K tap work well and the 7K tap has less distortion. So, does anyone see any issues to place a switch in to use one or the other tap? It might give me another way to tweak the sound on this amp. I would place the switch in the back and only switch it with the amp powered down.