Pultec MB-1 tube mic preamp copies made by Fred Bova of Bovatronics. Brand new hand built with point to point wiring. They use modern Input and Output Transformers, and run at a slightly lower B+ Voltage. Same Tubes used, 12AX7, 6AQ5, 6X4, and 95% Same circuit design. They have a Continuously Variable GAIN Control on the Front from 0 = no Signal, to around 55 dB.
The back has a Female XLR Input, a Male XLR Output, an On/Off Switch and a Fuse. Only a half dozen made. The item "Bovatronics- Pultec MB-1 Tube Mic Preamp" is in sale since Friday, March 29, 2019.This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "yrplace" and is located in Glendale, California. 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, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Antigua and barbuda, Saint lucia, Turks and caicos islands, Barbados, Brunei darussalam, Bolivia, Guadeloupe, Iceland, Jordan, Cambodia, Sri lanka, Maldives, Peru, Viet nam, Uruguay, Russian federation.