I think you should write an article based on the the preamp we're doing over at the "Group Build.".....Colin

The Guinevere saga would indeed be interesting. The parts which have I have gotten the most out of has been trying to anticipate all the questions and offer choices and alternative methods of solving the design issues.

Since personal taste is such an issue with this hobby, setting out a single means of doing the job is almost impossible. There have been a few unique circumstances which have both helped and interfered with the project.

The primary one being a small number of forum participants. This cuts both ways. It cuts down on background noise, and stuff like, 'you idiot! that way sucks...my way is best'. It also cuts down on the number of 'my way' options which get presented.

Writing would get in the way of more building though...
regards,
Douglas

For a PP amp, this is the general set of design specs( in no particular order):
good sound
availability of parts
inexpensive, plentiful tubes
sane B+ ( less than 400V, likely ~300 )
accessable design( no ridiculous tricks required )
ease of troubleshooting
few parts
10-20 Watts ( with samll variation, 30 )
Class A bias of power stage
1-man, single channel portability

For a general idea: 807's @ 280V/80 mA into 10k with 40% U-L screen taps. E-Linear connected 6BK7B phase splitter front end.

For a bit more power, EL34 into 5k-6k6....or KT88/6550's at 350v/110 mA.

Again, soooo many opinions as to what is the 'best' way and so many means of doing a very similar thing. It all depends on taste and a few basic requirements. What do you want? is one which ought to get answered first.
regards,
Douglas