I am the original owner of these amps and they work flawlessly.
The amps come with a remote control SR Black fuses in the plates and IEC, the Herbes and EAT tube dampers. I will also include the tubes shown in this picture.
The DiaLogue Seven comes with KT88 tubes and works ell with KT120 tubes. You can switch the amplifier in “triode mode” or “ultra-linear mode”, by pushing a button on the included remote control. Switching the amplifier to triode mode connects the screen grid to the plate. This reduces the maximum power output to 40 watts, compared to the ultra-linear mode, which increases the maximum power output to 70 watts RMS, and also serves as negative feedback, which flattens the frequency response.