Transformers and chassis arrived quickly from nextgen😊
Angela Super Single-ended build
Many of you may have already tackled this build which was a hot item in the late 90s.
I have just ordered up the parts needed from Nextgen to start my next project.
Got some fancy turrets from Nextgen too! a new item for them which i find useful in socket wiring.
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I have just ordered up the parts needed from Nextgen to start my next project.
Got some fancy turrets from Nextgen too! a new item for them which i find useful in socket wiring.
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I have stared at that schematic for a long time and thought about building it. It is essentially a 5F2-A Princeton, but with a pair of power tubes in single-ended format, rather than just one as in the actual Princeton (and Champ), and a paralleled pair of 5Y3 rectifier tubes for the added current requirement. Is the real increment to wattage, by adding the second power tube, enough to yield an audible boost in output level? I'll let you tell us, Alan. 
Looking forward to your report.
Looking forward to your report.
Certainly I will report; I expect a stouter foundation than a champ or princeton and perhaps a noticable increase in headroom and volume(20% possibly if that can actually be described accurately) .I have stared at that schematic for a long time and thought about building it. It is essentially a 5F2-A Princeton, but with a pair of power tubes in single-ended format, rather than just one as in the actual Princeton (and Champ), and a paralleled pair of 5Y3 rectifier tubes for the added current requirement. Is the real increment to wattage, by adding the second power tube, enough to yield an audible boost in output level? I'll let you tell us, Alan.
Mostly this is for my mind absorbing hobby desire...and it will look neat to nerds
or a Gibson GA-8 with dual rectifiers:I have stared at that schematic for a long time and thought about building it. It is essentially a 5F2-A Princeton, but with a pair of power tubes in single-ended format, rather than just one as in the actual Princeton (and Champ), and a paralleled pair of 5Y3 rectifier tubes for the added current requirement. Is the real increment to wattage, by adding the second power tube, enough to yield an audible boost in output level? I'll let you tell us, Alan.
Full wave with 1N5408Gs....bridged and centre tap lifted is what I have on the test board now
Hammond 269AX series is what i ordered
Planning on a solid state rectifier using (edit)1n5408s
The ax does not have a 5v winding.
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Planning on a solid state rectifier using (edit)1n5408s
The ax does not have a 5v winding.
Attachments
You may be right...i have a 269EX also and it has 2.5 amps
.3 amps x 1(12ax7) = .3
.45 amps x 2(6V6) = .9
2 amps should cover it ...will see how it goes....making do with what we have is part and parcel of hobbyists and army personnel in the trenches back in the day and maybe folks in fly in communities
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