Description

Conrad Johnson MV 75 Stereo TUBE Amplifier Just Serviced/TESTED JUST CAME FROM THE SHOP, A FEW SMALL REPAIR PERFORMED. REST OF AMP BENCH TESTED & GONE THROUGH. BULLET PROOF. NO ISSUES. One flaw is that the original cage and bottom are missing and replaced with a custom made cage and bottom. (I know, I’m bummed as well). The price reflects this. We have no idea why or where the parts could be. I inherited it this way & it went straight to my Tech. I had a local guy build a cage for the main chassis & the bottom. It came out very good. I know there is a tendency in the Audiophile world for perfection in everything. This is not that. This is a GREAT DEAL on a High Quality TUBE AMP for a home stereo setup! Functionally it is “Tip Top”! The Cord was replaced with a heavy duty type with the ground to the Chassis. The only other small flaw is that one of the fuse holders pops out just a bit (see pic). Does NOT affect performance & holds the fuse in place very well. MV75 SPECIFICATIONS · Power: Stereo: 75 watts per channel, minimum RMS at 4, 8, or 16 ohms from 30Hz to15kHz, with no more than 1% total harmonic distortion or intermodulation distortion. · Monaural: 150 watts minimum RMS at 4 or 8 ohms from 30Hz to 1kHz, with no more than 1% total harmonic distortion or intermodulation distortion · Frequency Response: 20Hz to 20kHz to -.5db Signal to noise ratio: 90 db · Tubes: 1 5751, 2 6CG7, 4 6550 · 4, 8, 16 ohm speaker taps (screw type) · one pair of inputs · two plate fuses (MV75A, and MV75A-1) · mono switch · power switch · optional rack mount panel and tube cage · Dimensions: 15W | 9H | 10D inches · Weight: 43 lbs. Conrad-johnson MV75 Vacuum Tube Power Amplifier Acclaimed as a state-of-the-art contender. Like the PV1, the MV75 employed metal film resistors and mylar capacitors throughout the circuitry. The MV75 has a built in bias indicator circuit to simplify bias adjustment for the tube output stage PER output tubes installed Earlier tube amplifiers required additional test equipment and technical expertise to set the bias for the output stage-a daunting task for many owners. The MV75 included a built in LED bias indicator for each output tube requiring only a screwdriver to accurately set the bias. This arrangement made it a simple matter for owners to keep their amplifiers operating at peak performance. All subsequent conrad-johnson tube amplifiers have included this built in bias indicator . The MV75A upgrade added high-voltage fuses to protect the amplifier from shorted output tubes and upgraded the mylar capacitors to polypropylene. The MV75A-1 upgrade included circuit revisions to reduce the impedance of the regulated power supplies for the voltage amplifier and inverter stages. HAPPY HUNTING!