Ye ! Actually my P1, as of Friday night evolved into an HO, but wearing a hotter bias in the output tube. I added another 12ax7 stage. I put the bias resistor to about 180 ohms to hit the 88mA bias limit for 6L6's...even if it was a 6550 that was in the socket. Ayun na nga, blew out one of the windings of the OT. I forgot...when I had that wound, I specified 5 Watts so mang JV calculated a maximum DC bias of 60mA @4k primary and 8 ohm secondary. I clearly blew the thing...I think the P1 amp, when biased hot can definitely spit out more than 5 watts and the 60mA handling capability of the OT. My bad. But the power tube was still intact after I performed the repairs on the OT and power supply resistor. But then again, medyo mura lang naman sya so I'll just use it again and when it blows, I'll have another one re-wound (hehehe). So far, it sounds very nice when you use it clean or dirty clean, but farts when you raise the gain knobs (its got 2 now). It's the crummy Rage amp 10" speaker. Kasi when I wired it to the 12 incher of my Fender Champ, ganda na ng distortion. Video soon when I work out how to use my webcam as a video camera
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Actually embot, I think the limitation here in the Philippines is that the winders here are using the silicon cores that are the same used for power trannies. I think may special wire pa for "bowteek" ones. So yun, given those limitations (for now), I guess we can enjoy tube amps up to a certain sound quality level. Tapos pag ready na, upgrade na to either OEM or Mercury Magnetics or Hammond.
Me screen resistor ang P1...its at 1k 1 watt nga ata according to the schematic...although I think i put in a 5 watter there hehehe. Like I said, my P1 was assembled from parts already lying around the shop...trannies I had wound but neglected, ditto with tube sockets and what not, so I just put together the motley collection of parts.
Before I get to continue the Spitfire, I'm re-doing my Fender Champ25SE to see if I can get a louder volume from it. I changed the OT already with a 40-watter, now the next step is to bias it hotter. Di pa yung Mercury Magnetics to, sayang naman, I'll save that for a Dumble clone or a Fender 5F6. Actually, di pa ko decided... pwede din Sovtek Mig50, dali lang pala yun. Soldano madali din, I just need to analyze it and cut out the unnecessary circuitry like for foot controlled channel switching. Maybe I'll even cut out the gain channel para the drive will come from pedals na lang. Pwedey !