Telefunken TR-350 HiFi Stereo/FM-AM Analog Receiver, 1979-1981, made in Germany

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General Description
If all you wanted was a simple Hifi receiver in 1979, Telefunken's TR 350 might have been a possible answer. One could call this device a crossing of the TT 350 tuner and the TA 350 amplifier. The tuner section is exactly the same as in the TT 350, even located at the same place in the identical housing, just without the variable FM muting level and exact tuning indicator the TT 350 features (it would be possible to add such an indicator by adding a few missing components on the tuner board). The amplifier section is the well-known Hifi Chassis 1000, also used in the TA 350. The housing doesn't look as empty as for the TT 350, yet there is still plenty of space.

Features

FM/MW/LW, tuning indicator, muting switch, selectable automatic fine tuning, monitor function, selectable loudness,

Connectors
AM antenna, FM antenna (coaxial and symmetric), Phono (DIN and Cinch), Tape (DIN and Cinch), monitor (DIN), ground clamp, 2xspeaker (DIN), headphone (DIN and 6.3mm)

Country: Germany
Manufacturer / Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Year: 1979–1981 Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) Semiconductors present.
Reception principle Super-Heterodyne (Super in general); ZF/IF 460 kHz
Wave bands Broadcast, Long Wave and FM or UHF.
Details Hi-Fi equipment
Power type and voltage Alternating Current supply (AC) / 220 Volt
Loudspeaker - This model requires external speaker(s).
Power out 100 W (140 W max.)
Model: FM HiFi Stereo/FM-AM Receiver TR350 HiFi Ch= 1000 - Telefunken Deutschland TFK,
Material Metal case
Shape Book-shelf unit.
Dimensions (WHD) 460 x 145 x 350 mm / 18.1 x 5.7 x 13.8 inch
Notes

• Telefunken receiver TR 350 (TR 350 hifi)
• Special: All connections are in DIN AND international construction.
• Tuner: USW to 108 MHz, LED field strength indicator, LED Stereo Ind, AFC, mono / stereo, FM muting.
• Amplifier: 15-43000 Hz, 2 x 50/70 watts / 4 ohms, bass, treble and balance controls, Low & High filter, linear / Loudness, Speaker A / B,
• Housing versions in metallic brown or matt black with champagne metallic front.

Receiver Part
Wave Ranges:	FM = 87.6 ... 108 MHz
	MW = 518 ... 1610 kHz
	LW = 148 ... 325 kHz
Circuits:	AM 5 / FM 9
Intermediate Frequency:	AM 460 kHz / FM 10.7 MHz
Sensitivity:	FM 1.4 µV Mono / 4.5 µV Stereo
	(S/N = 26 dB, 199 Hz, 40 kHz Modulation, 240 Ohm
Distortion Factor FM:	< 0.5% Mono / < 0.6% Stereo
	(1 kHz, 40 kHz Modulation)
Extraneous Voltage Ratio FM:	> 62 dB Mono / > 58 dB Stereo
	(acc. to DIN 45 500, Sht 2)
Signal / Noise Ratio FM:	> 61 dB Mono / > 55 dB Stereo
	(acc. to DIN 45 500, Sht 2)
Pilot Tone Suppression:	> 53 dB (acc. to DIN 45 500,
	Sht. 2/8, AF and TB)
Channel Separation:	> 38 dB / 1 kHz
Amplifier Part
Nominal Output Power:	2 x 50 W RMS
Peak Output Power:	2 x 70 W
Nominal Output Resistance:	4 Ohms
Intermodulation Factor:	< 0.5% (250/8000 Hz, 4:1)
Frequency Range:	< 20 Hz ... > 40000 Hz +/- 1.5 dB
Power Bandwidth:	< 15 Hz ... > 43000 Hz @ K <= 0.7%
	Inputs:	Input Impedances, Nominal Input Values,
	Overdrive ReServe at 1 kHz:
Phono Magnetic:	47 kOhm / 2.4 mV / 27 dB
Tape:	470 kOhm / 290 mV / 25 dB
Monitor:	40 kOhm / 200 mV
Outputs:
Tape DIN:	1.2 mV / kOhm (@ 40 kHz Modulation)
Tape Cinch:	1 V (Ri = 10 kOhm/ 40 kHz Modulation)
Headphone:	> 100 Ohm (DIN), > 8 Ohm (6.3 mm)
Speaker:	> 4 Ohm (DIN 41529)
	(2 x Room 1, 2 x Room 2)
Regulators:
Balance:	+3 dB / -13 dB
Treble:	+12.5 dB / -12.5 dB @ 15 kHz
Bass:	+17.5 dB / -17.5 dB @ 40 Hz
Filter:	Noise: Steepness 8 dB / Octave,
	Limiting Frequency 6000 Hz
	Subsonic: Steepness 8 dB / Octave,
	Limiting Frequency 60 Hz
Deemphasis Phono Magnet:	according to IEC resp. DIN45547
Extraneous Voltage Ratio:	> 60 dB acc. to DIN 45 500
Crosstalk:	between channels: > 53 dB (1 kHz)
	> 35 dB (10 kHz)
	among inputs: > 50 dB (10 kHz)
Dampening Factor:	1:13 (at 1 kHz), 1:6 (at 50 Hz)
Semiconductors:	11 Integrated Circuits
	30 Transistors
	11 LEDs
	16 Diodes
Mains Voltage:	220/110 Volts AC at 50/60 Hz
Fuses:	Mains 220 V 1 x T 1.6 A
	110 V 2 x T 1.6 A
	Secondary 2 x T 2.5 A, T 630 mA

Collectors' prices
Mentioned in -- Original prospect or advert (Telefunken High Fidelity Programm 79/80 (D))
Literature/Schematics (1) FFH Braune Liste 80/81

Service Manual: