Overview of Brands and Models from first Solid State Audio Amplifier Components want

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Electro Voice "E V - 1282" Solid State Integrated Amp uses TO-3 RCA 43168

The Electro Voice EV1282 (EV-1282) is also a nice device, but no schematic info are to find. Also not about RCA's 43168 power devices. Are this germanium or silicon transistors?
It seems to be an OTL output

 

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About the follow Brand I haven't never heard: "Lloyd's"

Here pics of Lloyd's nice receiver D-614 (D614) with integrated 8 track cassette player. Informations in general are very hard to find (e. g. brand history/timeline).
How old could this model be?

 

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Audio Components from Lloyd's without Model No except the IM31W

Here some pics of Audio Components from Lloyd's without model No (except the receiver's IM31W and RR6777 of the pdf photo collection). Additional photos of devices without model No you will find by follow URL's:
Lloyds Solid State Vintage turntable am/fm Stereo WO (07/08/2009)...
(no photo saving possible - very fine design)

Lloyds 8 Track Tape Player Player & AM/FM Stereo NI (09/25/2009)... (no photo saving possible - very fine design)
Lloyds 9N57B-37A 9N24B-37A shortwave radio receiver

 

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Early Solid State Receiver from Allied Radio Corp - Knight Kit KG-996 KG996

I guess, this model was launched between 1963 and 1964 (after looking the pics).

 

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first "Solid State" Home Audio Devices from "The Fisher" TX100 and 500T

The integrated Amp TX-100 and the AM FM stereo receiver 500-T (500T) are the first versions with solid state power amplifier stages. At which time this components are introduced? In some sources I read 1963 and in others 1966. I think, the TX-100 are launched before 1966, because Delco's germanium power device "DTG-110" at this time no longer available (compare the TO-3 transistors on the attached pics)

Here some URL's and pics:
http://hifigoteborg.se/Fisher tx-100 spec.htm
http://hifigoteborg.se/Fisher X-100-a spec.htm (both tube and transistor/solid state?)

schemi apmplificador Fisher "TX 100"
YoReparo - apmplificador Fisher TX-100 - Reparación de Audio (TX-100)

 

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McIntosh MA-2505 quasicomplementary OTL 2x 132-070 = 2N5303

MA2505 MA6100 MA250 and MA2100 was first solid state silicon audio amplifier devices from McIntosh.
The power amp "MA-2505" actually is an integrated amp without source select switch function, because there are dual mono volume control knobs on the front. This means the use without preamplifier as separate component, if the output resistance from the connected source isn't too large.
free service manual include schematics you will get from
HiFi Engine | Download Free User/ Service Manuals, Amplifier, Receiver, CD, Tape, Tuner, Video
Motorola silicon output power devices: 132-070 (= Motorola's later introduced industry standart TO-3 type 2N5303).

 

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McIntosh MA-6100 - so called "Preamp-Amplifier"

MA2505 MA6100 MA250 and MA2100 was first solid state silicon audio amplifier devices from McIntosh.
The McIntosh MA-6100 integrated amplifier-URLs:
http://mcc.berners.ch/integrated-amplifiers/MA6100.pdf (short form data sheet)
McIntosh MA 6100 Vollverstärker | HIfi Audio High End klassisch
McIntosh Laboratory ? Wikipedia
Berner's Site

 

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First Silicon Solid State Power Amps from McIntosh: MC-250 and MC-2100

The MC250 and MC2100 uses quasicomplementary power output stages. The Motorola factory number of the power devices is follow: 132-070 (= Motorola's later released industry standart types 2N5303, also TO-3 outline). Here some URL's and pics:
http://www.berners.ch/McIntosh/Downloads/MC250_own.pdf
http://www.berners.ch/McIntosh/Downloads/Pricelist_parts_08-1977.pdf
Mcintosh Mc250 amplifier | mcintosh Audio
6th Street Bridge: McIntosh MC-250 update
MC 2100 output failure question - AudioKarma.org Home Audio Stereo Discussion Forums
McIntosh | 1960’s

 

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McIntosh's successor of MC-2100: The MC-2105

From the differences between the power amp topologies of MC2105 and MC2100 I haven't knowledge. But I think only small variations.

 

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"Sony's (and Japan's) first all-silicon transistor amplifier" from 1961

Hello Andreas

Here is what a Sony fan has to say:

The 1967 Sony STR-6060F was the first Japanese all-Silicon Receiver.
The All-Silicon Sony TA-1120 integrated amp pre dates the Trio Supreme 1 (1965), but is certainly not Japan's first solid state amp.

Sonys first Home Hifi activities date back to 1958, when they introduced the world's first all solid-state stereo (Simulcast) FM/AM tuner and the first all-solid state portable TV, so it is to be expected, that there were also Sony amplifiers around this time.

Regarding solid state in General the Delco Chevrolet radios (around 1955) are probably the very first (and very unreliable) all solid-state implementations.

The Sony amplifier devices from post #78 and post #79 (TA-3120, TA-1080, TA-1120F/TA-1120) are the first "stand alone" silicon solid state amps.
But Sony's (and Japan's) first all-silicon transistor amplifier was the "built in" amp from Sony's Tapecorder 777 ("TC-777", "three seven"), first release 1961 - look about
Pioneer of Multimedia Era
Sony Global - Product & Technology Milestones-Home Audio
and
AKAI REEL TO REEL'S 1960 - 1980 Photo's

Suited to this device Sony offers the appropriate powered loudspeakers SSR-777 (internal amplifiers tube or solid state?).
More URLs:
Sony TC-777 on TVK
SONY (Sony Folders)

 

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"Sony's (and Japan's) first all-silicon transistor amplifier" from 1961 - II

Sony's (and Japan's) first all-silicon transistor amplifier" from 1961 - the "built-in" version" for "Sterecorder 777"

 

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First Circlotron Solid State power output stage?

I note, that for the Circlotron/CSPP topology more terms exist. e. g. SEPP (= Single Ended Push Pull by Bart N. Locanthi).
Have a look to
http://www.tubecad.com/2008/03/25/A.W. Donald III-SEMICONDUCTOR_AMPLIFIERS.pdf
An another name for CSPP: SEPP (Single Ended Push Pull)
Single-ended push-pull transistor amplifier (US-patent 3.102.984, SEPP, Bart_N._Locanthi)
http://en.wikipedia.org/wiki/Bart_N._Locanthi
Here Electro Voice's tube technology Circlotron (PPP) for compare:
http://circlotron.tripod.com/

Bart N. Locanthi also the developer from JBL's T-Circuit, first commercial used high power true complementary topology
Vintage Asylum: JBL SA600 designed by Bart Locanthi by crooner
JBL CONSULTANCY
Totale restauratie van een JBL SA-600 versterker uit 1966 (Restauration JBL SA-600 from 1966)
http://www.diyaudio.com/forums/analogue-source/108986-jbl-sa600-sa660-integrated-2-ch-amps.html

and
http://www.diyaudio.com/forums/soli...st-complementary-ab-bipolar-amplifiers-9.html
(post #85 and post #86, many pics)

Which first commercial amp models uses transistorized Circlotron/PPP/SEPP/CSPP (Solid State) power output stages ??

 

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160/200 Watt first high power Solid State Amp from 1961, Lafayette Radio, Model LA280

Lafayette Radio Electronics (LRE), main competitors were Radio Shack, Allied Radio and Heathkit
Lafayette Radio - Wikipedia, the free encyclopedia
About the LA280 power amplifier isn't to find exact informations like pics, schematics and repair so as operating advices.
Who knows more?

About the site from Dick Burwen
Dick Burwen
I read this:
One of Dicks clients in 1961 was Lafayette Radio, a New York parts distributor. Technicians in the store basement manufactured a 160 Watt Transistor Stereo Power Amplifier of Dick’s design. The output stage used series connected germanium power transistors.

More URL's and only one pic of Lafayette's LA-280:
Dick Burwen's Sound System
http://www.burwenaudio.com/Krohn-Hite_UF-101.pdf
AES E-Library: 1 Kilowatt Transistor Audio Amplifier
http://www.analogaudio.narod.ru/audio.pdf
Lafayette Radio Electronics Catalogs
http://dustyoldamp.wordpress.com/tag/old-lafayette-amp/
http://www.audiokarma.org/forums/showthread.php?t=63465

Lafayette LA series line up:

LAFAYETTE LA-224T AMPLIFIER (0167) OP/SER $20.00
LAFAYETTE LA-225 RECEIVER (LF) OP/SER $20.00
LAFAYETTE LA-226/226C RECEIVER (LF) OP/SER $20.00
LAFAYETTE LA-230 RECEIVER (0010) OP/SER $20.00es
LAFAYETTE LA-234 AMPLIFIER (0052) OP/SER $20.00
LAFAYETTE LA-248 AMPLIFIER (0025) OP/SER $20.00
LAFAYETTE LA-250 AMPLIFIER LF OP/SER $20.00es 1.3mb
LAFAYETTE LA-250A AMPLIFIER LF OP/SER $20.00es
LAFAYETTE LA-260 AMPLIFIER (0016) OP/SER $20.00
LAFAYETTE LA-280 AMPLIFIER (LF) OP $20.00es .9mb
LAFAYETTE LA-290 AMPLIFIER (0019) OP/SER $20.00
LAFAYETTE LA-310 AMPLIFIER SEE KT-310
LAFAYETTE LA-324A AMPLIFIER (0233) OP/SER $20.00es
LAFAYETTE LA-340 AMPLIFIER (0011) OP/SER $20.00
LAFAYETTE LA-350 AMPLIFIER (0007) OP/SER $20.00
LAFAYETTE LA-350A AMPLIFIER (0130) OP/SER $20.00es
LAFAYETTE LA-375 AMPLIFIER (0260) OP/SER $20.00
LAFAYETTE LA-424 AMPLIFIER (0272) OP/SER $20.00
LAFAYETTE LA-440 AMPLIFIER (LF) OP/SRT $20.00
LAFAYETTE LA-475 AMPLIFIER (0344) OP/SER $20.00
LAFAYETTE LA-524 AMPLIFER (0275) OP/SER $20.00es 2.2mb
LAFAYETTE LA-950/950A AMPLIFIER (0308) OP/SER $20.00es
LAFAYETTE LA-975 4 CHAN AMPLIFIER (0285) OP/SER $20.00es
LAFAYETTE LA-1050 AMPLIFIER (0345) OP/SER $20.00

 

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Early Transistors - some vintage circuit collections and descriptions

A Paul Kemble web page - index to 'sound' webpages.
A Paul Kemble web page - RSD 800b. (RSD800B 2N3773)
A Paul Kemble web page - John Linsley Hood preamp designs. (JLH Preamp overview)
A Paul Kemble web page - sundry stylii interfaces. (more vintage preamps)
A Paul Kemble web page - compact PA designs. (compact power amp designs)
A Paul Kemble web page - sound and width. (equalizing and effects)
A Paul Kemble web page - audio amplifier protection. (short prot)
A Paul Kemble web page - SSM 2131 (power amp design). (Current Feedback)
A Paul Kemble web page - SSM 2131 (power amp design). (THD kinds)
Early Transistors Bibliography (first data book and basic's)
Oral History Paul Penfield Jr Page6 1950s Transistor Construction and Audio Articles
Science: The Versatile Midgets - TIME
A Paul Kemble web page - sundry stylii interfaces.
Regency TR-1 Transistor Radio Facts and Figures

RCA Application Notes [OLD!] [Archive] - QRZ Forums
Direct-current-coupled transistor power amplifiers (direct coupled current power amps)

General advices to guitar amps (in German) also of interest for high fidelity amps: http://homepages.fh-regensburg.de/~elektrogitarre/pdfs/kap10.pdf
found by Hochschule Regensburg Elektroakustiklabor

 

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Sansui's AU-777, first silicon solid state integrated amplifier from 1967

The AU 777 was Sansui's very first silicon solid state integrated amplifier equipped with Sony's silicon BjT's 2SD46.

 

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Sherwood's first Solid State Integr. Amp and Receiver S9000, S9900, S9500 and S7600

First "all silicon" SS (transistorized/tube-less) integrated amplifier is the Sherwood's model S-9000, test in the magazine "High Fidelity" May 1965.
Later the models S-9500 and S-9900 was released.
S-9900 was tested in Audio edition September 1965
Sherwood's S-7600 (FET AM/FM receiver, test in Audio edition October 1967) - is one of the first through-and-through solid state receivers ever, and was launched two years later than the first all silicon solid state integrated amplifier S9000. Here some URLs:
Untitled Document
Untitled Document
Audio Magazine Equipment Reviews Part 1
http://www.romeroy4u.com/Sads.html
http://reocities.com/siliconvalley/program/3092/ClassicAudio/Pages/SherwoodFrameSet.html
Ebay Item number:130398747044

 

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Scott Stereomaster 344-C and 344 with TO-3 Power Devices from Bendix

Early solid stste Scott receiver (tuner-amplifier) "Stereomaster 344" (nuvistor-equipped tuner) and Stereomaster 344C.

 

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Luxman integrated Amp "SQ 503" (1969) - 4x Sanken TO3 Devices ST610

I don't find informations, whether this model was the first solid state amplifier from Luxman. Also no data sheet and informations about Sanken's "ST-610" in TO-3 outline (see attached pics).
About the ST-615 I have found this:
ST615 datasheet and Application Note, Data Sheet, Circuit, PDF, Pinout | Datasheet Archive

 

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Early Solid State Amps from Philips - EL-6603, EL-6622 and EL-6623

This amplifiers must actually be the first solid state versions for the public address aera.
Here some URL for overviews and schematics:
documentations de service amplificateurs
Philips organs and amplifiers
LoudandProud Philips Stereo Price and Year Made (model - year of release)

Le forum de Vintage Audio Laser • Afficher le sujet - Discussion générale (var Philips)
Offshoreradio.org / Oude advertenties (Vollv. GH919/GH949)

documentations de service amplificateurs
(first Solid State for home Hifi from Philips - for download service manuals "softronic downloader 86101.exe" necessary)

middenlijst (all models)
Philips EL 6623/00 ebay item number 20494586603 from dr.hiraga to hobbysss 02.01.10
OC26 and ASZ15 pic:
http://home.snafu.de/wumpus/oc26c.jpg
http://gimg.dt00.net/goods/809/80952/9859big.jpg
http://www.donberg.ie/pics/a/asz_15.jpg

 

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Early Solid State Amps from Philips for Home Audio 22GH919 and 22GH925

Early Solid State Amps from Philips for Home Audio 22GH919 and 22GH925 - I don't know older solid state models from Philips for home hifi