Sharp Optonica SM-3000, 1975, made in Japan

Link: radiomuseum
Manufacturer / Brand: Sharp; Osaka
alternative name Hayakawa Electric Co.Ltd.
Year: 1978/1979
Type: Audio Amplifier or -mixer
Semiconductors (the count is only for transistors) Semiconductors present.

Principle Audio-Amplification
Wave bands - without
Power type and voltage Alternating Current supply (AC) / 220 Volt
Loudspeaker - This model requires external speaker(s).
Power out
from Model: Optonica SM-3000H - Sharp; Osaka
Material Metal case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 442 x 144 x 380 mm / 17.4 x 5.7 x 15 inch
Notes 2 x 50 W Sinus.
Mentioned in -- Original prospect or advert ((A) Kapsch Geräteprogramm 1978/79 mit Sharp Importgeräteteil)

Sharp Optonica SM-1616, made in Japan

Specifications: hifiengine
Power output: 32 watts per channel into 8Ω (stereo)
Frequency response: 15Hz to 60kHz
Total harmonic distortion: 0.2%
Damping factor: 40
Input sensitivity: 2.5mV (MM), 150mV (line)
Output: 150mV (line), 30mV (DIN)
Semiconductors: 2 x IC, 24 x transistors, 2 x FET, 17 x diodes
Dimensions: 442 x 144 x 253mm
Weight: 7.8kg

service manual

Dual CV 1260 CLASS A, 1985, made in Japan

Model: CV 1260
Years of construction: around 1985
Manufactured in: Japan (Denon)
Colour: satin metallic and anthracite metallic
Type: Analog
Remote Control: No
Power consumption: Idle 44 VA, Power Rating 500 VA, max. 680 VA
Dimensions: 440 x 97 x 265 mm (WxHxD)
Weight: 7 kg
Factory price approx .: 700 DM

Number of inputs: 5

  • Phono (RCA), 2.5 mV / 47 kOhm (MM), 0.8 mV / 100 kilohms (MC)
  • Tuner (RCA), 200 mV / 47 kOhm
  • Tape1 (DIN), 200 mV / 47 kOhm
  • Tape2 (RCA), 200 mV / 47 kOhm
  • Monitor (RCA), 200 mV / 22 kOhm

Number of outputs:

  • 2x speakers (8-16 ohms)
  • 2x Rec Out Tape1 (DIN) / Tape2 (RCA) (Ri 470 Ohm)
  • Headphones 6,3mm

Technical specifications
Power Output

  • 8 ohm: 2x 50 watts
  • Music performance
  • 8 ohm: 2x 80 watts

Total harmonic distortion (up to 2 x 70 W, 1 kHz): 0.02%
Damping factor: > 70
Frequency response: 10-45000 Hz
Signal to noise ratio: 88 dB (line inputs), 68 dB (Phono MM), 61 dB (Phono MC)
Stereo channel separation:

  • between the channels: 55 dB
  • between the inputs: 70 dB

Tone control:

  • Bass and chief regulator
  • Loudness: switchable
  • High Filter: No
  • Low filter (subsonic): Yes
  • Mute: No
  • Direct / Line-Straight: No

Special Features
Record Selector via pushbuttons
Monitor output via pushbutton
two combined VU / watt meter illuminated,
Class A amplifiers

Teleton A660 Stereo Hi-Fi Amplifier, made in Japan

Country:  Europe Manufacturer / Brand:  Teleton Gruppe
Year: 1975 ??  Type: Audio Amplifier or -mixer
Semiconductors (the count is only for transistors) Semiconductors present.

Principle Audio-Amplification
Wave bands - without
Power type and voltage Alternating Current supply (AC) / 220 Volt
Loudspeaker - This model requires external speaker(s).
Power out 
from Model: Stereo Hi-Fi Amplifier A660 - Teleton Gruppe
Material Metal case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 420 x 0 x 320 mm / 16.5 x 0 x 12.6 inch
Notes Teleton Stereo Hi-Fi Amplifier A660; 5 DIN input, 2 VU meters, made in Japan.


Vermona Synthesizer, 1980-1990, made in Germany

Link: vintagesynth

Polyphony: Monophonic
Oscillators: 2 VCO's with Pulse, Ramp, Square and Noise waveforms
LFO: 1 LFO section with Speed, VCF-Modulation, and Delay
Filter: Analog 24 dB/oct with Brilliance, CutOff, Resonance, Contour
VCA: Attack, Decay, Sustain, Release
Keyboard: 44 keys
Memory: None (5 Presets for VCF, 1 User; 5 presets for VCA, 1 User)
Control: None
Date Produced: 1980 - 1990

Renkforce (Conrad / Wangine) HVA-8030 Concert 30, made in Taiwan (OEM / Japan)

Impedance 4-8 ohms
2 x 100 Watts Output
2x60W into 4 ohms
2x45W into 8 ohms
THD: 0.007%
Frequency response: 10-60000 Hz
2 pairs of speakers: A, B, A + B
Meters XO 1, Loudness, Bass, Treble and Balance
WxDxH 43 x 23 x 13 cm
Made in Taiwan хотя начинка вся made in Japan

Teleton Stereo Amplifier SAQ-408, 1975, Europe

Link: radiomuseum
Country: Europe
Manufacturer / Brand: Teleton Gruppe
Year: 1980 ?? Type: Audio Amplifier or -mixer
Semiconductors (the count is only for transistors) 18:
Principle Audio-Amplification
Wave bands - without
Power type and voltage Alternating Current supply (AC) / 110-117; 220-240 Volt
Loudspeaker - This model requires external speaker(s).
Power out 20 W (unknown quality)
from Model: Teleton Stereo Amplifier SAQ-408 - Teleton Gruppe
Material Wooden case
Shape Book-shelf unit.
Dimensions (WHD) 390 x 81 x 230 mm / 15.4 x 3.2 x 9.1 inch
  • 20-Watt Solid State Stereo HiFi-Amplifier.
  • Bass-, Treble-Control, Loudness, Hi Cut Switch.
  • 2 Diodes, 2 Rectifier Diodes. 
Net weight (2.2 lb = 1 kg) 3.5 kg / 7 lb 11.3 oz (7.709 lb)
Source of data - - Manufacturers Literature

GEM Galanti Group Rodeo 49 with drum machine, made in Italy

made in Italy
49 keys, 5 voices

  • Voice Tabs: Flute, Brass, Reed, String, Wah (wah is a voice, not an effect!)
  • Vibrato: On/Off
  • Rhythm Tabs: Latin, Rock, Swing, and two more unknown (but who cares?)
  • Knobs: Volume, Drum Volume, Tempo
  • Magic chord 
  • Memory

Maestro synthesizer | Маэстро цифровой электромузыкальный синтезатор, 1982, made in USSR

Description: ruskeys
Owner's Manual: ruskeys
Scheme / circuitry: ruskeys

Keyboard electronic musical instrument (KEMI) "Maestro" is a portable polyphonic four-voiced synthesizer with microprocessor control (KR-580) & programmed timbres "presets". Number of presets- 20. There is possibility to get vibrato frequency with depth & frequency control. This instrument includes "chorus" effect with depth control, filter with cut-off frequency & resonance control. There are also "arpeggio-tremolo" arrangement with speed control and joystick that pitch shifts & vibrato depth controls.
  • Mains voltage 220V
  • Power consumption 25W
  • Range of operating tempererature 15-35 C
  • Relative oscillator drift over four hours is within +- 0.3
  • Sound range overlaped by oscillators- 43,6 Hz- 5274
  • Voices in unison-4
  • Dynamic range, <55 db
  • Weight- 15kg

Engineer: Vladimir Kuzmin, designer: Olympiada Kuzmina, produced by Urals Vector Company.

Faemi-1M | Фаэми-1М, 1982, USSR

Description: ruskeys

A polyphonic analog synthesizer Faemi - 1M (Kachkanarsky radiofactory) has a keyboard of 4 octaves. Main generator, infralow frequency generator, lowpass filter, amplifier are in the basis of the synthesis in this instrument. The control panel is divided into 5 sections: generator, timbre, vibrato, filter, amplifier.

  • GENERATOR: release, tuning, glissando
  • TIMBRE: piano, strings, clavesin, wind instruments
  • VIBRATO (generator of pulse low frequency): frequency, depth, delay
  • FILTER: attack, decay, sustain, release, frequency, resonance, modulation
  • AMPLIFIER: volume
Engineer: Alexander Reunov, designer: Andrey Petukhov, produced by Formanta Katchkanar radio plant.

Fera / RFT (Fernseh-Radio) HiFi 50 Quadro-effekt, 1974, made in Germany

The amplifier 50 HiFi Quadro effect of PGH TV-Radio Berlin is the successor of the famous HiFi 50. He is the first hi-DDR-home amplifier having the connection for two additional speakers to pseudoquadrofonen playback. This process should not be a substitute for real quadraphony, but is intended as an improvement of the stereo reproduction that significantly improve the three-dimensional sound image despite the low technological effort. The electrical and mechanical properties would otherwise remain virtually unchanged compared to the HiFi 50, so the description largely done with the text.

The amplifier has on the rear side of the tape 5 inputs, phono, tuner, micro and specialty, the latter is mainly intended for the connection of electronic musical instruments that can be selected via a push-button set. The signals of the five inputs, which have a total of 3 different sensitivities are input, coupled to the base of the three-stage input amplifier via various passive RC networks. This is equipped with low noise Miniplast transistors, thermally very stable and due to strong negative feedback relatively insensitive to transistor manufacturing tolerances. An equalizer amplifier for magnetic sensing systems for the phono input is not provided in HiFi Quadro 50 effect.

Electro-Voice EVS - 8B CH-2560 nidau, made in Switzerland

Dimensions (HxWxD): 545 x 270 x 295 mm

НЧ: 185 mm
Рупор (по магниту): 57 mm
Фильтр первого порядка

Rocktron RSP Technologies Intelliverb 24-Bit Virtual Room Processor (w/psu), made in USA

This Rocktron RSP Technologies Intelliverb 24-Bit Virtual Room Processor (w/psu) is in very good working and playing condition and has been fully tested by our pro audio shop. wurlitzerboston

The unit shows normal signs of wear from use and rack mounting. The rack ear corners are slightly bent (refer to photos) and the level control switch button is missing although the control can still be pushed. Includes original power supply


The RSP Intelliverb is a 24 bit intelligent effects processor providing 6 unparalleled effect algorithms and superb sound quality not found in effect processors twice it's price. Complete programmability and full MIDI implementation are coupled with a user-friendly operating scheme to ensure that designing both unique and useful preset sounds is a simple as possible.

Providing Virtual Room reverberation, 4 voice pitch shifting, 8 voice stereo chorus, various types of delay effects, delay ducking and HUSH Systems' fully digital implementation of HUSH noise reduction, the impressive sonic quality of the Intelliverb is, in part, due to the incorporation of three individual 16 bit converters and Sigma-Delta A/D conversion, achieving a 64x oversampling rate and dynamic range of over 100db.

To achieve the maximum possible performance (zero wait states) from the Digital Signal Processor (DSP) engine, the Intelliverb uses a large number of very fast (and expensive) Static Ram (SRAM) memory IC's. All other digital effects processors we have examined, including ones costing several times the price of the Intelliverb, (except the Rocktron Intellifex), use much slower and cheaper Dynamic Rams (DRAMS). This extra-powerful hardware allows the Intelliverb's Virtual Room algorithm to achieve unequalled levels of room simulation.