Peco Streamline SL-U8363 HO North American Style Code 83 Unifrog #6 Double Slip Switch NIBPeco Streamline SL U8363 HO North American Style Code 83 Unifrog #6 Double Slip Switch NIB The new double slip we are now offering this in the Unifrog format only, and it's a first for the "83 Line". UNIFROG EXPLAINED For current users of the Electrofrog or Insulfrog versions of our turnouts the new Unifrog format gives modellers the best of both worlds. As supplied, the turnout is wired completely "live", except for the frog tip and wing rails, and