Stereo Amplifier GSA-8500 Ampl/Mixer Gold Star Co., Ltd., Goldstar, LG Electronics;, build 1985 ??, 1 pictures, 1 schematics, 51 semiconductors, South Korea. Up for your consideration is a vintage Goldstar GSA-5300 integrated amp in nice working condition. Clean with minor wear. Tested and guaranteed to work Jan 5, 2015 - Kim, Cheong W., to Goldstar Electron Co., Ltd. Transconductance amplifier using Enhanced error detection scheme for instruction address sequencing ofFeb 22, 2018 - GOLDSTAR GSA-8500 GSA-8600 AMPLIFIER Service Manual download, schematics, eeprom, repair info for electronics experts. TV and television manuals and free pdf instructions. Find the user manual you need for your TV and more at ManualsOnline. Integrated Stereo Amplifier GSA-6500 Ampl/Mixer Gold Star Co., Ltd., Goldstar, LG Electronics;, build 1985 ??, 4 pictures, South Korea, schematics, tubes. Gold Star Audio.