Mitchell Cotter MK-2 Step-Up Transformer (P) Thoroughly tested on a friend's low output moving coil set-up and it works perfectly. Serial # T2-917-911. One owner since new. Unit has never been modified. Original silver wires attached. Very good cosmetic condition (I can e-mail pictures). "The MK-2 has load impedance jumpers inside, making it possible for the user to set its "impedance range" configuration as l, p, s or pp type for optimal cartridge matching.†This unit comes in its original factory setting as "P". Specs for the "P" version: DC Resistance: Less than 3 ohms Voltage Ratio: 16.8 to 1 Gain: 24.5 db Pickup impedance range: 2 to 30 ohms I do not have the connection diagram, but with proper soldering skills the buyer can easily change the configuration. See details in the review on Vinyl Engine (under Articles). I'm not an expert on these units, but know they are relatively rare and valued by collectors. Asking 5 US. Cashiers Check or Money Order only. Continental US sale preferred. John