Archive for March 2024

The L-9000 is a Direct Coupled OTL/OCL Tube Preamplifier. OTL/OCL means “Output Transformer Less” and “Output Capacitor Less”. In an OTL/OCL preamplifier, there is no coupling device between the preamplifier and the power amplifier , that is, the preamplifier’s final output tubes are directly connected to the power amplifier. Normally, an Output Capacitor or Output…