Vintage Tube Amp

Vintage 1950s AMPEX type 6450 DUAL HIGH VOLTAGE SUPPLY Ampex Tube Preamplifiers, removed from old obsolete rack cabinets during interior demolition work of Movies Screening Room in former 1950′s TV Station building on Manhattan’s West Side. Super heavy: 28 Lbs. Condition: used, transformers seems are working. It has Not Been Tested with radio tubes (we don’t have original tubes), quite old, tons of dirt. Removed from some sort of amplification farm cabinets. Original screws and vacuum bulbs had been missing during demolition. Pilot light is not working. No original tubes Included!! This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “metal_management” and is located in this country: US. This item can be shipped worldwide.

• Brand: Ampex
• Type: Tube Amplifier
• Model: 6516
• MPN: 6450
• Country/Region of Manufacture: United States

Pair Vintage Quad II Tube Amps – working, some restoration and updates. Here’s a rare pair of U. Voltage Quad II tube amps. He is the second owner of the amps, but he never used them after purchasing them. Before powering them up, I checked the wiring and resistor values. After slowly powering up on a Variac, I verified some of the operating voltages against the schematic and they were good. The original owner had replaced some resistors, as well as coupling caps. Additionally, one amp’s electrolytic power supply filter capacitor was replaced with the same microfarad value Solen 630V-rated polypropylene film caps. The other amp has the stock electrolytic filter capacitor underneath. The Jones plug input was replaced with an RCA input jack. The amps are rated at 15 watts per channel and are unsurprisingly considered to be a great match with the Quad ESL57 speakers. Art Dudley did a nice review of a pair he restored in Stereophile magazine, April, 2007. Since it has been my experience that buyers have different ideas about whether they want to use modern production KT66 output tubes e. G, Genalex Gold Lion, JJ, Tung-Sol, etc. The other tubes will be included, as well as the power cords. I took videos of each amp playing on my test bench. Contact me and I can possibly send them to you. However, my listing is certainly better than ones that are untested. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “mesh50″ and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, Indonesia, South Africa, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, New Zealand, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Republic of Croatia, Malaysia, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Taiwan.

• Brand: Quad
• Type: Tube Amplifier
• Model: Quad II
• Country/Region of Manufacture: United Kingdom

Presenting the AmpRx BrownBox Voltage Attenuator for Guitar Amplifiers. The BrownBox was created to provide a safe range of voltage reduction levels for vintage tube amplifier designs. The same, era-correct voltage levels that the amps were designed around. The dynamics of a vintage amp supplied with the proper line voltage are optimized and will sound and respond as originally intended, revealing the circuit’s true harmonic content. This is the starting point, the basis of the signal chain, and where serious musicians begin creating a signature tone. Most vintage tube amps respond more harmonically and touch sensitive with optimized voltage. Placing these circuits back into balance reveals the authentic tone fundamental of the amp, tone that can truly blossom. Why do you need Voltage Optimization for your amp? Voltage Optimization provides numerous benefits. Establishes the basis for your signal chain and the starting point in building a consistent signature tone. Earlier power tube saturation equals earlier break-up at more usable volume levels. A smoother tonal shift toward even order harmonics, revealing the amplifier’s true designed tone fundamental. Lower internal voltages = lower dissipation = longer component life. For the Tube Tone Purist, no pedal or attenuator can come close to replicating the heavenly response of dry, purely saturated tubes. Pedals and attenuators have their place, keeping in mind that they color your tone, not create it. Everyone can enjoy multi-dimensional, pure tube tone, if they just know where to start. The AmpRx BrownBox is NOT a variac. Unlike a variac, Brownbox cannot accidentally harm or destroy your amplifier. The maximum input voltage available using BrownBox is your regional line wall voltage, in bypass mode. All other selections are reduction levels that you determine sound best for your amp. The BrownBox employs a proprietary, American made, 5 amp transformer, intended for use with one amplifier. AmpRx’s proprietary transformer was custom wound exclusively for use with tube amplifiers – no off the shelf transformers or test-bench variac’s here! The BrownBox was created by a team of experienced player/ technicians with the professional player in mind. That meant first it must be intuitive and easy to use every time. Secondly, it must also have a road rugged design and be able to take abuse. Thirdly, it must be practical and superior to any other voltage reduction option. Caution: BrownBox and related Products are A/C Electrical devices designed for professional use. Use by non-professionals or minors should be fully supervised. Serious injury or Death can result from tampering with or opening the chassis. ” For Use in DRY locations only”. User assumes all liability. Easy to read, back-lit L. Display enabling real-time voltage and amperage monitoring, also useful for diagnostics. Tough road rugged construction. Proprietary Transformer designs wound exclusively for use with tube amplifiers, an industry first! Filament soft-start in full reduction mode. A powder coated EMF neutral housing. In-rush current protection, fused over-load protection. Made in the USA. The item “AmpRx BrownBox Voltage Optimizer for Vintage Tube Amps” is in sale since Wednesday, March 18, 2020. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers”. The seller is “guitarsanctuary” and is located in McKinney, Texas. This item can be shipped to United States.

• Model: BrownBox Voltage Attenuator
• Country/Region of Manufacture: United States
• MPN: BrownBox
• Amplifier Type: Voltage Attenuator
• Brand: AmpRx
• Suitable For: Performance