Roland AX-1 Keytar Midi Controller [Restoration & Repair], 1992-1994, made in Italy

Link: muzines | Owner's Manual PDF | synthxl [Service Manual, PDF]

Factory Reset: Power on while holding WRITE. (Hold for 30 seconds)

AX-1 MIDI MASTER KEYBOARD CONTROLLER
Compatible with GS Format.

KEYBOARD:
45-key dynamic portable keyboard

Programmable transposition, 32 User Patches, complete MIDI implementation, 
battery operated (alkaline battery - MN 1500 or Sum 35 x 6 pcs), Belt buttons.

NECK / MASTER CONTROLS:
Programmable Data Entry Knob, Transpose, Patch Down, Patch Up, Start/Stop, 
Modulation/Bender/After Touch Bar, Octave Down, Octave Up, Sustain Switch 
(Rear).

BODY MASTER CONTROLS:
Patch Recall (16 Buttons), Patch 1/16, 17/32, Patch Mode On/Off, Variation CC 
00, Variation CC 32,
Capital Program Change, 10 Numerical Buttons, Enter, Write, MIDI/Param, Upper 
Section On/Off, Lower Section On/Off, Edit Upper/Lower, Chorus On/Off, Reverb 
On/Off, Data Entry Assign.

REAL PANEL SWITCHES AND OUTPUTS:
MIDI (Out), DC In, Power On/Off

DIMENSIONS:
mm. 1004 x 193 x 90

WEIGHT:
kg. 3

ACCESSORIES SUPPLIED:
Shoulder Strap.
MIDI Cable (5 meter long).
Also supplied with your AX-1 are 6 alkaline batteries type MN 1500(Batteries 
life expectance = approximately 25 hours).

OPTIONAL:
AC/DC Adaptor (ACA series)

RMIF Elsita Art.: H19-077-10 4-channel analog drum synthesizer [Restoration & Repair] [serial #4196] | РМИФ Элсита Art.: H19-077-10, August 1989, made un USSR

Link: service manual | ruskeys | RMIF Elsita MIDI to trigger interface

k4d4w3r в 2013 году красиво все объяснил по теме:
Секвенсор для этого модуля так и не был сделан Рмифом.
Вход Din5 промаркированный как секвенсор на самом деле представляет из себя просто сведенные в 1 вход четыре тригерных входа. Так что никакого миди. В сети достаточно вариантов схем для самосборки midi2trigger переходников. в теории любой из них подойдет, надо будет только подстроить чувствительность блока синтеза к тригеру, это можно сделать одним из подстроечников на плате синтеза. Самой коробочки midi2trigger бояться не надо, она намного проще нежели любой midi2CV поскольку там не нужен в целом DAC. думаю что простенький драм секвенсор можно и на базе ардуины какой сделать, поскольку управление модулем будет аналогично тому что бы зажеть светодиод. сам тригер это будет просто примерно 5мск пульс амплитудой от 0 до +5 вольт. где то так... как я уже говорил значения надо будет подобрать.

RMIF Elsita is an analog drum module (RMIF factory). It contains pads for live playing on the uprights. There are 4 percussion sections in the instrument (from bass drum, snare, to high-hat).

Control on the front desk:

• gain
• tone
• release
• filter
• balance
• tone/noise
• level

The general functional buttons to the right:

• mains indicator
• channels 1-2 or 1+2 (switch)
• channels 3-4 or 3+4 (switch)
• metronome (ON, 0-300)
• main volume

Connectors on the back desk:

• mains
• fuse
• output
• telephone
• sequencer input
• 4 triggers' inputs
• 4 triggers' sensitivities

Art Tube MP Professional Tube Mic Preamp, May 2013, made in China

 

Link: artproaudio | Owner's Manual [PDF] | soundonsound

Key Features

• Provides Superior Preamplification for: Microphones, Instruments and Line Level Sources 
• Hand Selected 12AX7a Provides 70dB of Gain Smooth, Warm and Fat Sound Quality 
• Variable Input and Output Gain Controls 
• Excellent as a Tube DI 
• XLR and 1/4″ Inputs and Outputs +48 volts 
• Phantom Power 
• Phase Reversal Switch 
• Superior Sonic Performance to On-Board Preamps 
• TEC-Award Nominated Design 
• Portable, All Steel Construction

Specifications
Frequency Response: 10Hz to 20kHz (+0,-1dB)
Total Harmonic Distortion: <0.1% (typical)

CMMR:  > 75dB (typ @1kHz)

Dynamic Range: > 100dB (20Hz to 20kHz)

Equivalent Input Noise: -129dBu (‘A’ weighted XLR to XLR)

Input Impedance: 2k Ω (XLR), 840K Ω (1/4″)

Maximum Gain: 70dB (XLR to XLR typical)

Maximum Input Level: +14dBu (XLR), +22dBu (1/4″)

Maximum Output Level: +28dBu (XLR), +22dBu (1/4″)

Output Impedance: 600 Ω (XLR), 300 Ω (1/4″)

Power Requirements: 9 VAC @ 700ma (typ)

Dimensions: 5.0″D x 5.5″W x 2.0″H

Weight: 1.5 lbs

Alesis Performance Pad, 2007, made in China

Link: alesis | attrad [Owner's Manual, RUS PDF] | download

FEATURES

• 8 natural feeling, velocity-sensitive drum pads with Dynamic Articulation™
• Built-in professional drum machine so you can record and play back your own beats
• 50 Preset / 50 User drum kits with 233 sounds assignable to any pad
• Built-in rhythm patterns to complement your playing
• Large LCD display with easy-to-navigate interface
• Dynamic Articulation stereo samples with reverb and ambience for realistic playing
• 2 foot-switch inputs for external kick and HiHat (sold separately)
• Stereo input to play along with your CD or MP3 player
• MIDI output to play external MIDI devices
• High-quality 24-bit stereo and headphone outputs
• Lightweight, durable enclosure

SPECS

• 2 Outputs (1 stereo pair)
• 16/24-bit Sample/DAC Resolution
• 8 simultaneous sounds accessible via Pads
• 120 simultaneous sounds accessible via MIDI
• 16-voice polyphony
• 7-position user-programmable panning
• 8 loudness levels via pads, 127 levels via MIDI
• Timing resolution:96ppq
• 1-128 beats per-pattern time signature range
• Tempo range: 20-255bpm
• Notes/Patterns/Songs: 12,000/400 (200 user, 200 preset)/100
• Kits: 50 user, 50 preset
• MIDI Program Change Response: Kit
• Sync: MIDI Clock/Song Position Pointer
• Footswitch Jacks/Functions: 2- Kick and HiHat control
• Other Features: Sound stacking, step editing, stereo samples with reverb and ambience
• Dynamic Articulation: Modulates tone

Yamaha PortaSound PC-50 Portable Keyboard, January 1983, made in Japan

Link: yamaha | wikipedia

Specifications
- 44 keys
- 6 voice polyphony: organ, violin, clarinet, piano, harpsichord, and vibraphone
- 6 rhythm patterns: march, waltz, slow rock, jazz rock, swing, rumba
- Power source: 9VDC by six "C" size batteries or external
- Output ports: 3.5mm headphone jack, aux RCA connector, and expression pedal.
- Input port: power in: 9-12VDC

Musima Record 17 Hollowbody Archtop, 1970s, made in Germany

Link: muzeum