Kubton has released Memphis, a freeware delay VST effect plug-in for Windows PC.
Memphis is a fixed delay locked at 115 milliseconds, to get that Rockabilly sound.
Ya know the slap back of early Elvis. Back then Ampex tape machines were really all there was to record. The echo was created by the use of the record and playback head which just happened to be 1.5″ apart. The tape moved at 15 inches per second so it took the tape about, you guessed it, 115 millisecond to travel between the heads. Many of those songs sync up nice to the 115 milliseconds and they did not even have a sync to host button or even a host for that matter.
Memphis can be downloaded here.