Dynacord VRS 23
The Dynacord VRS 23 is a analogue audio delay, which uses bucket bridge delays (BBDs). It has a Mono-In and a Stereo-Out. The delaytime can be changed between around 400ms and very small delay times ( < 1ms). There are two modes: "Delay" "(a simple pingpong) and "Reverb" "(unsymmetrical delaytimes). The delay time can be modulated with an LFO, which gives effects between flangers, very smooth chorus and 70ties-It-Came-From-Outta-Space-Sounds.
There is also a great yahoo-group / maillist http://uk.groups.yahoo.com/group/vintagedynacord which I definitely recommend if you are looking for more information.