A few things off the bench...
5E1
No cab yet, might put it in a head shell. For fun, I've been running it through a Slant Marshall 2x12.
Man, only 5 watts, but it sure can push some air!
(http://i190.photobucket.com/albums/z30/codtone/20160314_121837%202_zpsq3swrigo.jpg)
(http://i190.photobucket.com/albums/z30/codtone/20160316_112132%202_zpstmislgbj.jpg)
Optical Trem
I've built heaps of these, love 'em.
(http://i190.photobucket.com/albums/z30/codtone/20160324_101133%202_zps3fvuqqim.jpg)
(http://i190.photobucket.com/albums/z30/codtone/20160324_101230%202_zpsochqldyj.jpg)
TS808 with mids and clipping options on toggles.
(http://i190.photobucket.com/albums/z30/codtone/20160403_080714%202_zps9hldfbtw.jpg)
This is a BYOC board filed down to fit a 1590B. You have to sacrifice the outside pairs of traces, but other than that it works fine. I had to put the board face down to get clearance on the toggle switches, so it's not very pretty. I just cover the whole lot with a business card. ;D
(http://i190.photobucket.com/albums/z30/codtone/20160403_080428%202_zpsllq3wahh.jpg)
That amp is epic!