traynor made a fine outboard spring reverb in the fender outboard style back in the 60s... very similar all tube design. A little noisy. Some people ont eh web have claimed that this is because its meant to run at line level in and out, low impedance studio levels, but I don't see any schematic evidence of that. it looks like a fender reverb to me. Its just a slightly noisier unit then a fender. Sounds great in the 'fx' loop of my traynor amp.