MCINTOSH MC275Vacuum Tube Amplifier Tango Fw-100-5R Energization Confirmed

Description

Please check the picture.

There is no sound, probably due to a missing vacuum tube or an internal disconnection.

The vacuum tube is

Electro-Harmonix 6550EH 4 pieces (KT-88)

JAN 12AT7WC PhilipsECG 8739 1 piece

For daytime measurement, other unknown 1 piece

4 pieces are missing.