Been using it for a without issue. Both channels are loud and clear. Electrolytic Capacitors ought to be checked before regular usage.
Switches and remote plug need a good cleaning. I gave them a quick squirt of deoxit but a proper clean and lube since they are still finicky. Output tubes are a serviceable quad of Amperex 6BQ5s. Faceplate and knobs are great. Jewel is original and power switch works. The item "Fisher X-100-A Integrated Amplifier Tube Amperex 7189 12AX7 Working" is in sale since Wednesday, June 9, 2021. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps".The seller is "prima5star" and is located in Vallecito, 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, Sweden, South Korea, Indonesia, Taiwan, South africa, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, 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, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.