Luxman M-02 C-02

The Status Series M-02 and C-02 didn't begin their lives as such : they were planned as C-400 and M-400, taking over the C-300 / M-300combo, with the styling of the L-550 for the C-400.

Both prototypes were presented at the march 1983 french Hi-Fi Fair but were revised quickly thereafter to become the M-02 and C-02, smaller siblings of the already available C-05and M-05.

Unlike the C-400 which changed a lot when becoming a C-02, the M-400 didn't change much to become the M-02 - see the Invisibilia section of TVK for the one (and only ?) image of it.

The M-02 however saw an intermediary version which landed in the catalogs as late as 1987 (!) but which wasn't produced : same design but large finish differences, better specifications and a tad more power in BTL mode, too - see Knobber images #5 and #6.


The M-02 was export-only but technically directly reminiscent of the ealier M-120A : onlynot bigger and with good old needle meters instead of flashy red LEDs.

The circuit is basically the same : Duo-ßeta,Duo-Alpha, plus-X power-supply and two Heat-Pipes.
One crucial ingredient however changed : the450VA transformer is of the round core type :R-Core - quite uncommon in 1983.

Caps were upped to 2x 15,000µF and the structure was reorganized to visibly be dual-mono, the transformer and heat-pipes in symmetry near the front plate, drivers and output stages near the back plate.

Output can rise up to 300W in mono mode (Duo-Alpha) but with only one speaker terminal for both modes instead of the two of the M-120A - still plenty enough to go deaf rapidly.
But beautifully.

The planned high-end status of the original "400" combo was well kept in the M-02 : it sold very well and owners keep them.

http://www.thevintageknob.org/luxman-M-02.html

Technics SE A5 Stereo Power Amplifier

Technics SE A5 Stereo Power Amplifier

1979

With the stereo power amplifiers Technics SE-A1/A3/A5 Technics offered in 1979 a completely new concept in the development of DC-circuit technique for power amplifiers.

The 19kg heavy " NewClassA " power amplifier provides 160 watts per channel and sounds amazing . The uncompromising clear design with front-filling power display instruments behind thick real glass fitted into a solid aluminum panel was successfully and copied by many manufacturers more or less.

16 Axial bulbs were installed in order to obtain a homogeneous illumination of the giant VU meter front. I have replaced the bulbs completely.

Technics has this model series from 1981 almost reissued in 12 months rhythm with cosmetically adjusted to every trend.

Today, after 35 years of Technics / Panasonic is still using this design for certain audio product lines. 

https://www.flickr.com/photos/48136705@N05/14254248282/in/photostream/

Pioneer SA608,TX608 set

                                            My Pioneer SA608,TX608 set

Technics SE A5 Stereo Power Amplifier 1979

With the stereo power amplifiers Technics SE-A1/A3/A5 Technics offered in 1979 a completely new concept in the development of DC-circuit technique for power amplifiers.

The 19kg heavy " NewClassA " power amplifier provides 160 watts per channel and sounds amazing . The uncompromising clear design with front-filling power display instruments behind thick real glass fitted into a solid aluminum panel was successfully and copied by many manufacturers more or less.

16 Axial bulbs were installed in order to obtain a homogeneous illumination of the giant VU meter front. I have the lamps replaced completely .

Technics has this model series from 1981 almost reissued in 12 months rhythm with cosmetically adjusted to every trend.

Today, after 35 years of Technics / Panasonic is still using this design for certain audio product lines. Now Panasonic is using cheap looking plastic glass surrounded by a mostly dark colored plastic front.

https://www.flickr.com/photos/48136705@N05/14241953085/in/photostream/

LUXMAN L-501s Integrated Amplifier

http://audio-vintage.ru/index.php?a=item&id=85

The Integrated Amplifier of L series which introduced the technology developed with the high-end model.

In order to send out the stable energy to a speaker, the Oide power transistor and the large-sized heat sink are adopted.
Moreover, the efficient large-sized EI core power transformer and the mass capacitor excellent in the instant charge-and-discharge property were carried, and the effective output of 70W+70W has been obtained.

The high slew rate CSSC (Complementary Single Stagger Circuit) super-wide band amplifying circuit which was excellent in the instantaneous power of sound in the wide band is adopted as an amplifier circuitry.

ROM optical disk (Optimized Dual) beta circuit is carried.
It was used in order to secure the stability of the direct-current area of amplifier, but by the way of inserting DC servo amplifier etc. in a feedback loop, the feedback of general DC had become a cause by which the tones for every band differed in order to put in a process which is different only to DC area.
In L-501s, though the dependency to a corrective network is reduced by improving the nakedness property of a circuitry and a direct-current region and each alternating-current region are considered as another feedback, the unification of the tone covering the stability and all the play bands of a circuitry is realized, without using DC servo amplifier.

The STAR circuit original with a Lux is adopted, sharing of the feed line in a circuitry or an earth line is abandoned, and the loop which became independent, respectively consists of connecting the whole of each line with each block or a signal path directly from a reference point.
This removes the variation factor of the amplification reference point by the cross interferencee between each circuitry, or transition of the signal current, and the cleaner music play is aimed at.

Two lines are carried in the speaker terminal as a bi-wiring interconnection correspondence.
Moreover, the vice type screw type which holds a cable firmly is adopted, and the banana plug is also supported.

The input only for man month is carried and phone amplifier is built in.

The motor drive scheme is adopted as a volume and an input selector.

Functionalities, such as a loudness, a Subsonic Filter, a feather r eggplant control, a mono-switchpoint, and a tone control, are carried.
Moreover, the straight switchpoint is carried and a tone quality with a higher purity is obtained by making a signal path simple.

Phase-in barter is carried and a phase switching of a balance line (XLR) input is possible.

The line phase sensor is carried and a polar mandatory is possible.

Relay contact only for headphone was given to the headphone jack, and it has the headphone circuitry of another system with the output to a speaker termination.

A power switch, an input selector, volume control, and the remote control in which the fundamental operation of a muting is possible are attached.
Moreover, the bus line which interlocks the compact disk player made from LUXMAN and a remote control operation is also carried, and the operationality of a systemwide is raised. 

Form	Integrated amplifier
Succession runtime output	70W+70W (8ohms)
THD (Line straight on)	0.005% or less (8 ohms, 1kHz, both channel simultaneous drive) 0.03% or less (8 ohms, 20Hz - 20kHz, both channel simultaneous drive)
Input sensitivity/impedance	Phono: 2.5mv/47kohm Line, Recorder:150mV/47kohm Bal.Line: 150mV/66kohm
Output voltage	Recorder:150mV
S/N ratio (IHF-A correction) Line straight on)	Phono: 90dB or more (5mV input) Line: 106dB or more (input short-circuit)
Frequency characteristic (Line straight on)	Phono: 20Hz-20kHz±0.5dB Line: 100kHz [ 20Hz - ]-less than 3dB
Tone control	Bass: ±6dB (100Hz) Treble: ±6dB (10kHz)
Loudness control	100Hz : +5dB (±1dB) 10kHz : +3dB (±1dB)
Power source	AC100V, 50Hz/60Hz
Power consumption	175W (Electrical Appliance and Material Control Law)
Dimensions	Width 467x height 151x depth of 439mm
Weight	13.0kg
Adjunct	Wireless remote control

http://audio-database.com/LUXMANALPINE-LUXMAN/amp/l-501s-e.html

ReVox 40 stereo tube amplifier 1961-1965

One of the most famous tube amplifier by ReVox Switzerland

still in good  working condition with a fantastic tube sound

the wonderful tubesound of the  60'ties...

http://www.ebay.de/itm/ReVox-40-stereo-tube-amplifier-1961-1965-/121335513340?pt=Vintage_Electronics_R2&hash=item1c402900fc

Technics EAA-2010/SU-2010/SU-50A/Technics 50A Integrated Amplifier

http://www.metal-vinyl.com/articles/400#ka8700

The solid-state Integrated Amplifier which compiled into one book and completed a series of tube amplifier development technologies of Technics 10A, 20A, 30A, and 40A.
The model number is changed 3 times with EAA-2010, SU-2010, and SU-50A.

The differential-amplification circuitry of a two-step stream composition and the OCL circuitry by 2 power-source schemes are used for a main-amplifier part, and it constitutes the whole page hardwired-connection circuitry. By circuitry without an output capacitor, the low-pass property is improving and the stability and the linearity are also improving.

The equalizer stage of a preamplifier part is constituted from a three-step hardwired-connection NF type which used the low noise PNP transistor, and high S/N has been obtained while canceling the shortage of a dynamic range.

The scheme original with technics which used the special Dual-unit volume is adopted as a tone control circuit.
This scheme has a special structure which combined the silver conductor and the resistor, in order that both of brushes may touch a silver conductor, all the capacitors separate from a circuitry, it becomes a circuitry of only a resistor, and a flat property is acquired at the middle point.

The protection network using four transistors and two diodes is carried.
In this circuitry, the automatic-control protective device which detects the operating point of a power transistor and maintains a safe operation, and the automatic revise circuitry by a temperature change are carried. Furthermore, even if an excessive electric current flows by considering it as a returned type at the moment, an operation is not interrupted only by a signal clipping.

The front panel adopts push-button-type an input selection button, a large-sized sound-volume thumb, etc., and is improving facility.
Moreover, if a switchpoint is turned on, the design from which the values of the front panel rises will be adopted.

The pre-out termination carries two lines, the Low termination of Output power 1V, and the High termination of 5V.

Four AC outlets are carried.

Two speaker contact buttons are carried. 

http://audio-database.com/TechnicsPanasonic/amp/su-50a-e.html

The Marantz 6100 Turntable

                               Sexy Vinyl Sounds: The Marantz 6100 Turntable

The Marantz model 6100 features an AC synchronous motor belt drive system, a precision tone arm with anti-skating adjustment, hydraulically damped cueing, and low capacity cables suitable for use with CD4.

The rubber mat on the platter is impregnated with anti-static compounds to prevent static electricity build up that can cause dirt particles to be attracted to the record surfaces.

Specifications

Drive system: belt drive

Motor: AC Synchronous

Tonearm: S-shaped

Effective length: 213mm

Overhang: 11mm

Stylus pressure: 0.5 to 4.0g

Speeds: 33.33 and 45rpm

Rumble: -60dB

Wow and flutter: 0.08%

Platter: 30cm

Platter weight: 0.72kg

Dimensions: 440 x 162 x 335mm

Weight: 6.6kg

http://www.vinylengine.com/library/marantz/6100.shtml

http://www.microcosmologist.com/blog/wp-content/uploads/2013/03/Marantz-Model-6100-Turntable.jpg

Pioneer 1978

http://www.audiopower.ru/content/lib/brand/29/period/3/year/195/

SRT typ 523 SV + SRT typ 614

SRT typ 523 SV + SRT typ 614  
(Mullard EL95).
Skivspelare 523 SV, Skandinavisk Radio & Television (SRT); Kopenhavn (1960).
SRT typ 614 tube receiver (Skandinavisk Radio & Television).
The trio track chassis probably originated mainly in the Copenhagen Skandinavisk Radio & Television A / S (SRT), which built the record player for B + O and which has been overtaken in the later seventies by Bang & Olufsen. SRT built in the early sixties as well for the brand His Master's Voice (EMI) Turntable

SCOTT A 457 vintage stereo amplifier

Specifications

Power output: 30 watts per channel into 8Ω (stereo)

Frequency response: 15Hz to 35kHz

Total harmonic distortion: 0.2%

Damping factor: 35

Input sensitivity: 6mV (mic), 2.5mV (MM), 160mV (line)

Signal to noise ratio: 80dB (mic), 75dB (MM), 85dB (line)

Channel separation: 42dB (MM), 46dB (line)

Weight: 10.2kg

http://www.ebay.de/itm/SCOTT-A-457-vintage-stereo-amplifier-get-back-to-the-70ties-/121264544817?pt=Vintage_Electronics_R2&hash=item1c3bee1c31