One of the main things that's been holding me back from attempting an amp build from scratch or kit alike, is the cost of transformers. You may notice from my other posts that I am a bit of a sucker for a vox (AC4TV, and AC30CC2), and further more that there is gaping whole between the two amps I do have in terms of output power (~4W/~30W). So a 15 to 18 W amp just makes sense.Now, for me it makes sense to stick with EL84's (thus eliminating the need to stock multiple output tubes for my amps). This brought me to the 18watt & pp-watt communities. There are lots of good people in those forums, and a great wealth of experience and an overall willingness to help work through ideas.I had been studying the project over at Trinity amps for quite sometime ( <<lightning project>> ), and it seems to fit the bill nicely. So this was going to be my build.I managed to acquire an old Heathkit AA-151 dual mono integrated tube amp from a buddy ( <<AA-151 Manual>…