Restoring my old Block logo Pase 90

[tonemonster]

I've had my block logo phase 90 for 25 or so years, and it sounds a little weak and tired. I'd like to restore it to "original" spec. I've been told that the original tantalum caps can dry out, and other things can change as well. I DON'T want to mod it, I want to restore it. Does anyone have info/schematic, parts list etc???

[blanik]

http://www.trt-wonder.com/page10.html

read the whole 8 pages and order the snake oil... 

R 

[tonemonster]

As fond as I am of "Snake oil", my phaser sounds dull and tired. I've checked all the usual supects other than the circuit board components. Any  ideas?

[e178453]

Fixed a newer phase 90 with help from this forum.  Along with a cooked IC the 5.1v zener had been damaged somehow, think from backward wall wart polarity.  The voltage from the zener looked good but the phase effect was weak until I changed the zener.
scott

[jonathan perez]

cchriiiiiiiissssssssssmaaaaaaaaaaassssssss