Kücke KS T-22 specifications

Category : Tuner

General < / b>

Connections

Technical data

Special equipment

The KS T22 was produced by the Wuppertal company KS Electronic (Kücke & Co) and marketed in parallel by c6e421eaad140c1bc1a39980502df80c under the designation AS3100. From 1985, the company c6e421eaad140c1bc1a39980502df80c then took over the production of the components and released a revised version AS 2T. Compared to the AS3100 (T22), the AS 2T has improved isolation shanks due to a changed IF filter characteristic (LC TOYO IF filter)

Possible fault symptoms of the aging electronics:

--> leads to the defect of the associated bridge rectifier

Recommendation: Have the battery replaced by a specialist/workshop!

Often the intervention (repair attempt) causes more damage to be repaired than repaired and then ends up in the online auction house in the worst case. Burned-out traces, misaligned trimmers (you should know what you are doing if you turn around on trimmers for no reason without knowing their function), etc. are the result.

If in doubt, contact the competent repair service of Kücke see the link on the company profile!

• manufacturer: kitchen
• model: T22
• year of construction: 80s
• Made in: West Germany
• colour:
  • Front: Champage (brown buttons); Gold, chrome, Black (black keys)
  • case: brown Front: Chan page; Black Front: gold, chrome, black
• remote control
• power consumption: 30VA
• dimensions: 445 x 60 x 365 mm (W x h x d)
• weight: 7.2 kg
• factory price approx.:

• Front: Champage (brown buttons); Gold, chrome, Black (black keys)
• case: brown Front: Chan page; Black Front: gold, chrome, black

• number of outputs
  • 1 x Stereo RCA outputs
  • 1 x Remote out
  • 1 x X, Y output to the oscilloscope for the analysis of the RF signal with respect to multipath reception
• number of inputs
  • 1 x antenna 75 643961b8da111c0a15d770a1109a86d4
  • 1 x Remote in

• 1 x Stereo RCA outputs
• 1 x Remote out
• 1 x X-, Y-output to the oscilloscope for the analysis of the RF signal with respect to multipath reception

• 1 x antenna 75 643961b8da111c0a15d770a1109a86d4
• 1 x Remote in

• channels: (FM)
• frequency:
  • FM: 87.5 to 108.0 MHz
• frequency response: 20Hz to 15kHz (-3dB)
• input sensitivity: 30uV Stereo, 46dB S/N
• total harmonic distortion: 0.08% in the Stereo (measured by L=R, represents the best value, in contrast, L, R or L-R: 0.7%)
• signal-to-noise ratio: Mono 72 dB Stereo 65dB
• channel separation: > 45 dB (1kHz)
• selectivity: (+/- 300kHz) > 80dB
• frequency selection: < 1.5 dB
• in addition to the wave selection:
• mirror frequency attenuation: > 100 dB
• ZF-loss: > 100 dB
• ON-suppression: n. b.
• output level: 775 mV
• RDS: no
• station memory: 10

• FM: 87.5 to 108.0 MHz

• quartz PLL frequency generation with 10 kHz step size
  • micro-controller and PLL control by private housing shielded
• RF Front End (RF input module) Valvo FD12
• the ZF Filter Tuning are made up of a series circuit:
  • 2 x SAF (surface acoustic filter)
  • 2 x 6-Pin LC (tank circuit) if Filter (manufacturer Toko) with a constant group delay
• quadrature Demodulator
• coil wireless stereo decoder in the PLL switch-technology TCA4500A
• Logarithmic field strength indicator
• Muting function to avoid between the transmitter noise
  • Ratio-the middle of estimating
  • Signal-to-noise ratio estimating
• Digital direct frequency input via input keys
• Manual Abstimmrad with optical direction of rotation decoding (with flywheel)

• micro-controller and PLL control by private housing

• 2 x SAF (surface acoustic filter)
• 2 x 6-Pin LC (tank circuit) if Filter (manufacturer Toko shielded) with a constant group delay

• Ratio-the middle of estimating
• Signal-to-noise ratio estimating

• In comparison to the ReVox B 760 poorer separation in the case of strong Stations
• pilot tone distortion

• Increased sharpness of Defective components in the power supply, preferably short-circuit input load capacitor

• Cold solder joints in the bridge rectifier because of the high thermal stress (REC. Sticking on a heat sink)
• Cracked electrolytic capacitors with loss of capacitance in the power supply, output capacitors Voltage regulator
• Rare and short sound interruption, later with jumping or fluttering signal strength indicator (input part power supply 15V;

• Bouncing tap buttons
• During manual tuning by means of a rotary wheel, the indicator jumps in the meantime by 10kHz counter to the direction of rotation (up/down). (Recalibration of the discrete directional encoder necessary)
• No reception of transmitter only intermediate station noise, PLL not looked, tuning voltage FD12 faulty

• Crosstalk audible in stereo operation with voice peaks and sibilants, PLL frequency Stereo decoder misaligned
• Leak ing memory battery
• Short holding period of the stored Station frequencies
• Deep-charged battery after a long service life without operating the device

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