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advice needed for a 5f2a modbig-daddy-59 June 17th, 2009, 11:43 PM Pulled the trigger on the parts for my first amp build yesterday... but I could use a little advice regarding a mod I'd like to make to use a 6L6GC as the power tube. Take a look http://i625.photobucket.com/albums/tt334/big-daddy-59/Modified5f2a.jpg Tele-Dave June 18th, 2009, 12:05 AM Make sure you get the proper OT. The 6L6 likes to see a load resistance of about 4200-5000 ohm, whereas the 6V6 likes to see 6600-7000 ohm. petebradt June 18th, 2009, 12:41 AM Make sure you get the proper OT. The 6L6 likes to see a load resistance of about 4200-5000 ohm, whereas the 6V6 likes to see 6600-7000 ohm. You beat me to it. If you try to run 6L6s in a stock 5F2A you're liable to pop the OT. big-daddy-59 June 18th, 2009, 02:35 PM okay , upgrade output tranny. Would this be a good choice? https://taweber.powweb.com/store/se15sch.jpg muchxs June 18th, 2009, 02:45 PM 5F2A w/ WSE15 = NO PROBLEM!! Use the stock 470 ohm cathode resistor and you'll be able to switch from 6V6 to 6L6 any time. Your taps become 4, 8, 16, 32 with a 6V6 if you want to get hung up about it. A 10k load on a 6V6 is a little high. You have a choice of a little high or a little low, I'd go high. There's enough room on the 5F2 chassis to add a barrier strip between the circuit board and the PT for the extra taps. |
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