Hi John, Just in case you are interested, I have a pair of original Altec PP outputs and matching power trans from the 1569A amp. Ran PPP EL-34'S for 100w into 4-8-16-70V. I'd like to sell all 4 pieces as a set, $300 plus shipping. 73 Dennis W7TFO -- 2nd Parentheses 2:13 "And the slow of wit shall see satire and know it not."