Marantz Model 1515 AM/FM Stereo Receiver, 1978-1980, made in Taiwan (designed in USA)


Link: hifiengine | hifi-wiki | 1515/1515L instruction/owners manual | schematic | service manual | service manual (alt scan) Related Catalogues: We Sound Better | HiFi



Specifications:
Tuning range: FM, MW
FM: 87.5 - 108 MHz
MW: 525 - 1605 kHz
Marantz model 1515L: LW диапазон: 150 – 350 kHz
New price approx.: 898 DM
Power output: 15 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.08%
Damping factor: 25
Input sensitivity: 2.8mV (MM), 180mV (line)
Signal to noise ratio: 72dB (MM), 80dB (line)
Output: 500mV (line)
Semiconductors: 5 x IC, 29 x transistors, 19 x diodes, 1 x FET
Dimensions: 440 x 137 x 357mm
Weight: 9kg

Specifications справедлива для модели кроме как LW диапазона: Marantz 1515(L) Receiver

Rated output per channel:

DIN 4 ohms (1 kHz): 31 W

FTC 4 ohms (20 Hz - 20 kHz): 18 W

DIN 8 ohms (1 kHz): 26 W

FTC 8 ohms (20 Hz - 20 kHz): 15 W

Total Harmonic distortion at rated output: 0.15%

Damping: 28

Frequency response:

Phono (RIAA): ±1 dB

Aux (±1dB): 18 - 30 Hz/kHz

Main in (± 1 dB): 18 - 30 Hz/kHz

Signal/Noise ratio:

Phono: 72 dB

Aux. Output: 80 dB

Input Sensitivity/Imp:

Phono: 2.8/47 mV/k ohms

Auxiliary: 180/20 mV/k ohms

Separation:

Phono (1 kHz): 35 dB

Aux. (1 kHz): 43 dB

Main in (1 kHz): 55 dB

FM Stage (87.5 - 108 MHz):

Sensitivity: 

DIN Mono (S/N 26 dB 75 ohms): 1 µV

DIN Stereo (S/N 46 dB 75 ohms): 25 µV

IHF Mono: 10.8/1.9 dBf/µV

Selectivity/Adjacent channel 98 MHz ± 300 Hz: 65 dB

Signal/Noise ratio 98 MHz:

Unweighted: 

Mono: 62 dB

Stereo: 55 dB

Weighted: 

Mono: 66 dB

Stereo: 60 dB

MW stage (525 - 1605 kHz):

Sensitivity (26 dB S/N 30% mod. 1 MHz): 30 µV

Selectivity: 20 dB

LW stage (150 - 350 kHz):

Sensitivity (26 dB S/N 30% 250 kHz): 250

Selectivity (250 ± 9 kHz): 24

Width: 440mm

Height: 137mm

Depth: 358mm

Weigh: 9.0kg



Jolana Saphir Pickups Humbuker (for guitar / bass Jolana Galaxis), 1978-1982, made in Czechoslovakia

Link: muzeum | sovietguitars

варитон  + звукосниматели + регуляторы

Anta Fuzz, 1976, made in Latvia, LSSR






Педаль среднего перегруза. Включается, и выключается как и все Рижские педали нажатием педали до упора, что не удобно т.к. можно нечайно выключить в самый непододящий момент. Так же это еще и самая маленькая педаль Рижской фабрики, остальные заметно больше в длину.

Фузз на двух кремниевых транзисторах. Регулируется уровень громкости и тембр (по современному гейн) сигнала. Платформа нажимает только на кнопку байпаса.

Dimensions: 190х8х65 mm
Питание: от батарейки 9V "Крона"

... так выглядела оригинальная упаковка:



Dual CL-172 (Dual CL-173), 1972-1975, made in Germany

 

Link: hifi-wiki | radiomuseum

General
Manufacturer: Dual
Model: CL 172 (Model identical to the Dual CL 173)
Years of construction: 1972 - 1974
Made in Germany
Colour: natural walnut, white varnish
Dimensions: 477 x 250 x 203 mm (HxWxD)
Weight: 9.4kg
Original price approx.:
- Natural walnut: 322 DM
- Sanding varnish white: 332 DM
Technical specifications
Design: 3-way closed
Chassis:
- Woofer: 1x 195mm (up to No.45000 woofer (Wigo) ø 195 mm, voice coil ø 37 mm, 102.000 Maxwell ||| from No. 45001 woofer (Wigo) ø 195 mm, voice coil ø 25 mm, 57.000 Maxwell)
- Midrange: 1x 37 mm (dome)
- Tweeter: 1x 25 mm (dome)
Load capacity (nominal/music range): 40 / 60 watts
Efficiency:
Frequency response: 30 - 25,000 Hz (DIN)
Transition ranges: 800 / 6,000 Hz (12 dB/oct)
Impedance: 4 ohms

Special equipment
Recommended room size: up to 40 m²



TEC (Mitsubishi) Sound System 1003 Integrated Stereo Amplifier System 1000 / TEC System 3003 29/0429/04, 1975-1978, made in Japan


Link: radiomuseum | radiomuseum | hifi-archiv | hifi-forum

Оконечный усилитель собран на: Toshiba 2SB557 & Toshiba 2SD427



Weight: 8 кг
Dimensions (WxHxD): 402 x 100 (105 mm с ножками) x 255 mm (278 mm с рэковыми креплениями)
Насадки на потенциометры: цельнометаллические


Разбор полетов: hifi-forum

TEC - Mitsubishi, схемотехника TEC System 3003



Очередной усилитель попал под расдачу:


TC Electronics M-One Dual Effects Processor, 2000, made in Thailand

 


24bit. 2 chip CPU.
6 modes of operation and algorithms.
20 type of effects.
Analog input/output. S/PDIF I/O. MIDI I/O.
Input for a pedal
100 factory presets.
100 user memories.

Digital Inputs and Outputs
Connectors: RCA Phono (S/PDIF)
Formats: S/PDIF (24 bit), EIAJ CP-340, IEC 958
Output Dither: HPF/TPDF dither 24/20/16/8 bit
Sample Rates: 44.1 kHz, 48 kHz
Processing Delay: 0.1 ms @ 48 kHz
Frequency Response DIO:DC to 23.9 kHz ± 0.01 dB @ 48 kHz