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Old 13th Aug 2022, 3:28 pm   #21
Valvepower
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Join Date: Aug 2008
Location: Rayleigh near Southend-On-Sea, Essex, UK.
Posts: 1,852
Default Re: Fender Vibro Champ Amp

Got that.

A recent 6V6 adventure…. I have recently built a JTM45 or should that be JTM20 using 6V6 valves in output stage running in fixed bias giving 21 watts at the onset of clip. This was in pursuance of getting the 5F6A/JTM45 sound less some of the power, but still using proper octal bottles. It did work, however, it’s still darn loud!

This uses the Radiospares 300-0-300V mains transformer and the 18 Watt ‘EL84’ output transformer. Under no load conditions the 6V6’s have 370V on the anode, which I felt was enough and wouldn’t like to go further!

Well, to the reason for the post… Doing this amplifier this had me looking at the Fender AB763 Deluxe circuit which according to the Fender circuit has 415V on the anode. Crikey, these 6V6’s are being pushed.

Terry
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