Modification of an Altec Lansing 436C Vari Mu compressor

The Altec Lansing 436C is a popular all tube, VariMu compressor, released around the turn of the 1950s to -60s decade. Some bad parts have to go out first, then there will be some modifications added in line of the EMI/Abbey Road RS124 to make the unit more musical and effective in studio use.