This pedal can be found from the slide show at the bottom of this [BBC "Live Lounge" post](http://www.bbc.co.uk/events/ef6v4f#p00hf8r3). There's a wide shot of Alex & Adam and you can just make out the green in Sam's pedal. Clicking over to the 5th picture, you can clearly see the MXR.more
Between 1978 and 1979, on the first tours with the original Dire Straits setup, Mark Knopfler used only two effect devices on stage: the Morley volume pedal, and the green MXR Analog Delay. Mark used the MXR not so much for the long repetetive delays like on the intro of Down to the waterline (this was a Space Echo from the mixing desk) but rather for short slap back echoes that made his guitar sound thicker and fatter. The old MXR delay used some now obsolete components that gave the pedal a really unique sound, extremely warm and fat, however with some noticable noise. A key element for the early Dire Straits live sound.more
I've had an old MXR analog delay for a really long time. I love the big pwoerchord and the cheery green color that's usually associated with OD pedals these days. Ths a ver noisey delay and its very limited. Repeats sound nastya nd fucked up in a great way though. Overall in analog delays, even old ones, there are better units. I believe these are now highly sought after. I'm not sure why though. This delay is very much a special effect, super retro even for an analog delay. Ideal for conjuring up the 80s. It ain't no memory man though. I suspect that like a lot of pedals with AC power cables from way back when the transformer inside that turns wall voltage to DC is badly shielded and positioned and it generates extra noise in the circuit. I've heard of people converting their MXR Distortion IIs over to boss barrel jacks for power and running them at 12 to 18V, I should probably do that with the delay and see if it gets quieter because it definitely sounds different then a carbon copy.