The MQ-50, tube
Simplified Circuit with the
6550A/X & Dignified Design
The push-pull circuit featuring
the 6550A/X beam pentode at the output stage educes the tube's
potential at its best. Really high-grade image is created thanks to
gold-touch aluminium decoration chassis with engraved letterings,
moss-green punched metal bonnet, etc.
Output Transformer OY15-Z4K for
The new output transformer
specially designed for an optimum operation of UL (Ultra-Linear)
connection ensures perfectly balanced push-pull operation. A flat and
smooth frequency response is procured up to 100kHz at both of the
plate side and SG tap.
Whole-Stage Push-Pull Operation
Both of the 1st and driver stages
feature the push-pull circuits by means of the twin triodes
12AU7A/7030 and 6AQ8/7024, which offers the least distortion with
high stability at the bass.
The cathode NFb meticulously
balanced with the major output NFb produces an extremely small amount
of the total NFb, enabling to reproduce clear, distortion-free sound
in the totally noiseless background.
Substantial Power Supply
The exclusive power transformer
with sufficient large capacity and the constant voltage circuits
banish all the noxious effects caused by fluctuation of the mains