5Watt Tube Audio Power Amplifier Circuit With EL84

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The EL84 is one of the best pipes ever made, IMO, 3-triode EL84 wired in parallel and replace a sonically outperform WE300B in the same circuit (circuit originally 300B).

5W Tube Power Amplifier with EL84

And each of you probably know, I’m not a fan of tubes parallel to all.I would be very interested to know the success of an amplifier EL84 September

I thought everyone should know that I did for the beginning of the plan at first this thread and its good work. Most of all values for ressistors and caps I used are fairly similar, if not the same as what is in the map. Although I used a plug in multiple sets of filterstage before taking the state wave diode rectifier sound. In the first test no sound, so I cliped feedback negative lead goes to ground and it worked and I cliped feedback and lead others there was no difference in sound if c is finished. Its units strong enough and a lot of 12 “speaker very clearly.

Here are the results of the test:

B 1 = 331VDC, 262VDC B = 2, B 3 = 235VDC

EL84 = PIN9 = 261V, 311VDC bias pin7 = = 47th, PIN3 = 6VDC

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