Hi Andy, >I think I actually have one of those chips! (in a Maplin project) Would that be the 'voice vandal' by any chance? I tried to buy one of those kits exactly a month after they were withdrawn after being in the catalogue for years.. poop! If it was, what does it sound like? I was always intrigued by those boxes. >I probably have the datasheet if you need it Thanks for the offer but I've since found something that is still being made and might be much better for the job (if a bit lighter on the delay time) the PT2399 and PT2396 both go up to around 300ms, have built in RAM and cost $3.95 and $3.50 from smallbear... cheap enough to have loads! ... oh and it's SRAM too which means they should keep the data in sleep mode which might make for fun mini sampling setups, just a shame the internal ram means you can't do an easy 'infinite hold' by simply switching the write enable line off ( a nice cheap mod for anyone with a digital delay stomp box BTW) anyway I digress as usual :-) Cheers, Robin. ==================================================================== The contents and any attachments of this electronic mail message are confidential and intended only for the named addressees. Dissemination, forwarding, publication or other use of the message or attachments by any unauthorised person is strictly prohibited. Unless stated to the contrary, any opinions expressed in this message are personal and may not be attributed to AXA Sun Life or any member of the AXA Group of Companies. Internet e-mails are not necessarily secure. AXA Group does not accept responsibility for changes made to this message after it was sent.