Historic Triode Amplifier Henry HV755 with RS241 and 15-Inch Speaker Magnos

More details: A/. You hear the original sound of this amplifier: first with a modern speaker, then with the original speaker. Amplifier and speaker from 1941. Four triodes RS241 class B, mercury vapour rectifier with load indunctivity. The EL12spez. constitutes a parafeed-driver. The tubes are all rather weak, so there is not much indication going on on the current meter. The speaker is a 15inch Henry Magnos HL2501PE from 1944.