Has anyone come across a Sony 4290 before? It appears to be some sort of 5 legged FET. Ken _______________________________________________________________________ Ken Stone sasami at hotkey.net.au or sasami at cgs.synth.net Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>