Deletion of Overdrive/Preamp 250

Comment: I have added a couple of sources to the article. Reading some of the non-suitable sources online, it would appear that this was indeed a very notable product in the late 70s and 80s. #TEMP|Notability is not temporary, but because the product was notable before the internet was around, sources online are very hard to find. But we can assume that many sources exist in people's basements in those old magazines. This article needs the work of an expert, but it is savable. I have flagged the article for rescue to see if the |Rescue squadron has any guitar experts in it's ranks
Stance: keep
Cited policy: Wikipedia:Notability (WP:N||WP:ARS)