Pioneer TX-50A

Commentary

This is an AM/FM stereo tuner with a reasonable price that is designed for enthusiasts.

The front-end section employs a FET and a 3-row varicon to improve not only the sensitivity but also the interference rejection characteristics such as image interference ratio and spurious interference ratio.

An FM muting circuit is installed to suppress inter-station noise during FM channel selection.
The FM muting circuit can be turned on and off.

A large dial scale is adopted, and the FM scale is a linear type with equal spacing.

You can adjust the output level.
It also has a tape recording terminal that can be directly connected to the tape deck.

Model Rating

Type	AM/FM stereo tuner
FM Tuner Section
Practical sensitivity	2.3 μ V (IHF)
Capture ratio	3.5dB(IHF)
Image interference ratio	55 dB or More (82 MHz)
IF interference ratio	80 dB or More (78 MHz)
Spurious response	70 dB or More (82 MHz)
AM suppression ratio	45 dB or more
S/N	70 dB or more
Harmonic distortion factor (100% modulation)	Mono : not more than 0.6% Stereo : 0.8% or less
Tuning indicator	Signal meter
Muting	ON-OFF enabled
Stereo separation	40 dB or More (1 kHz)
Residual carrier level	35 dB or more
Antenna	300 Ω Balanced Type 75 Ω Unbalanced Type
Accessory circuit	Automatic switching between FM mono and stereo
<AM Tuner Section>
Practical sensitivity	15 μ V (IHF)
Image interference ratio	45dB(1MHz)
IF interference ratio	35 dB or more
S/N	50 dB or more (30% modulation)
Antenna	Ferrite bar antenna
Tuning indicator	Signal meter
<General>
Output voltage (100% modulation)	Maximum 1.8 v ~ Minimum 60 mv
Recorded output	FM : 600 mV (1 kHz, 100% modulation) AM : 600 mV (400 Hz, 100% modulation)
Accessory circuit	Output level control (FM, AM)
Power consumption	Rating : 12W
External dimensions	Width 330x Height 118x Depth 338 mm
Weight	4.6kg