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

[tiefbassuebertr]

Early Solid State Amps from Philips for Home Audio 22GH949 and 22RH590

second generation of home audio integrated amplifiers from Philips:
Virtueel radio en TV museum Lekkerkerk

 

[tiefbassuebertr]

Sony's very small Integrated Amplifier TA-70 and TA-88

Supplement to post #90 & #91:
Sony's sweet little Amplifier's TA70 and TA88 (with the associated stereo FM tuner)

 

[tiefbassuebertr]

Kenwood Integrated Amp KA-2000 from 1968

OTL version, power devices: 2SD91 from Sanken

 

[tiefbassuebertr]

Trio-Kenwood rare Receiver TK-60E and Integrated Amp TK-250, TK-250E TK-400

This must be one of the first solid state devices from Kenwood - the TK60E, TK250, TK250E and TK400. Not great ammount of informations to find.

 

[tiefbassuebertr]

Kenwood Mono Amp TK-200 and Integrated Amp KM-2002

This must be Kenwood's smallest mono amp: the TK200. And this is the best optical design: the KM2002. Also not enough informations online.

 

[tiefbassuebertr]

Dynacord MV-20T - first Solid State Amplifier from this Brand

first two URLs to the previous posts (schematics and datasheet for download):
www.fotoalbumet.com
2SD91 pdf, 2SD91 description, 2SD91 datasheets, 2SD91 view ::: ALLDATASHEET :::


About Dynacord's first Solid State Amplifier MV20T (MV 20T, MV 20 T) only rare informations online.

 

[tiefbassuebertr]

"Meazzi all Transistor Factotum" first Solid State Stereo Echomatic

this I have found by chance. Where is the power amplifier? Are powered speaker necessary? Have a look to the attached pictures.
some URLs
Factotum Meazzi "All Transistor"
Meazzi Factotum Diagrams, Schematics and Service Manuals for FREE || ABELtronics
Vintage Echomatic, vintage Guitar Amps (Vox Fender)
All That Gear That Made (and still makes) It All Happen

 

[dewets]

I've also got a Sony TA-70 packed away. t was my first REAL hi-fi amp, and I go it at a ridiculous price at a closing down sale in 1974.
It's got a crackling in both channels which got worse over time.

I'm looking for s schematic in order to try and restore/fix the little amp. Any pointers as to where I can a schematic?

Thanks

Oh, and may all the visiting football teams to teh FIFA World Cup do well!

 

[tiefbassuebertr]

First Solid State Amp for Magnavox Micromatic from 1962

From this portable record player with integrated speakers and stereo amplifier I want to have more photos and informations (only the attached PDF file I have found).

I've also got a Sony TA-70 packed away. t was my first REAL hi-fi amp, and I go it at a ridiculous price at a closing down sale in 1974. It's got a crackling in both channels which got worse over time.
I'm looking for s schematic in order to try and restore/fix the little amp. Any pointers as to where I can a schematic? Thanks
Oh, and may all the visiting football teams to teh FIFA World Cup do well!

concerning the SONY TA70 I have found this
http://www.audiokarma.org/forums/showthread.php?t=261297
schematic copies you will get here:
Schaltungsdienst Lange oHG
Zehrensdorfer Straße 11
D-12277 Berlin
Telefon: +49 30 72381-3
Fax: +49 30 72381-500
order@schaltungsdienst.de
ask for the costs.

 

[Tube_Dude]

second generation of home audio integrated amplifiers from Philips:

I have one of this in my collection and matching tuner, see then at my worlshop....

 

[Tube_Dude]

Tuner Philips

A tuner from a generation before...

I am a lover of PHILIPS Vintage Components ...

 

[tiefbassuebertr]

A tuner from a generation before...
I am a lover of PHILIPS Vintage Components ...

... also great devices. To get a complete overview of all Philips audio components is very hard (exactly like Magnavox). About post #99 I have listed some URLs. But nothing of this is complete, only certainly parts are to find.
As I know, Philips had three lines for audio applications:
1) home audio/hifi
2) studio equipment for recording and monitoring
3)a. instrumental amplifying (Guitar amps, amp modules for organ/electro piano, powered mixers)
3)b. public address (PA, ELA)
Perhaps you know sources on the web, where are to find all exist audio components from Philips between 1955 and 1985 (but without used tube/valve power amps, only solid state power amps).

 

[kstagger]

I have an old McIntosh 250 and a Dynaco ST-80 that I've been playing around with. With new power supply and signal capacitors, these old amplifiers performed beyond my expectations. Rebuilding the ST-80 was good fun and an easy, low cost project.

 

[tiefbassuebertr]

DCA-1400 from 1970 and DCA-1300: Sanyo's first Solid State Integrated Amp?

Sanyo's early models DCA1400 and DCA1300 without tubes maybe one of their first transistorized integrated amp models (company name in those days: Sanyo-OTTO).

 

[tiefbassuebertr]

Sanyo's Portable Stereo Music Center G-2607H like KLH Eleven from post #12 and #13

I am not shure, at which time was launched the G2607-H (G2607H) and G2615N (G-2615N) from Sanyo. But I think arround 1965-1967.

 

[tiefbassuebertr]

NATIONAL PANASONIC SUPER PHONIC MODEL SG725FL from 1960

From the ebay auction Item number: 200460642158 I have found this National model "SG-725FL" ("SG 725 FL" "SG725 FL") from 1960 with integrated solid state power amplifier equipped with 2SB178 in the output. That means older than KLH's model Eleven from post #12 and #13.

 

[tiefbassuebertr]

National SA-71 National SA-40/SA-54 from 1960 - really Solid State Amplifying?

By this models no tube/valve types are mentioned.
For the SA71 some germanium transistors, but for the SA40/SA54 also no transistors.
If no tubes in use by the power stages, this models must be Japan's first solid state amplifiers.
Or the year 1960 isn't right (means "around the 1960 in-the-late time" the last months of 1960 itself or the same than "late 60'th" - i. e. perhaps 1969 ? - I don't know exactly).
check out this URLs:
Technics National SA-71
National ƒvƒŠƒ�ƒCƒ“ƒAƒ“ƒvSA-71‚ÌŽd—l ƒiƒVƒ‡ƒiƒ‹
National ƒXƒeƒŒƒIƒŒƒV�[ƒo�[SA-40‚ÌŽd—l ƒiƒVƒ‡ƒiƒ‹
Technics National/Panasonic SA-40
Peter Fertinger - National Matsushita Electric SA - 54

 

[tiefbassuebertr]

Altec's first solid state Power Amp Stage? Inside in powered Mixer "352A"

Who knows the first date of release and the first used germanium power devices? Schematic wanted.
Thanks for your advices.
Here some URLs and attached pics:
http://www.greatplainsaudio.com/vintage_altec/352A_mixeramplifier_ALL_Part_1.pdf
Literature for Vintage Altec Products
ebay Item number 280513118201 for driver board - not sold out

 

[tiefbassuebertr]

Onkyo Dynamic Four 700 - first Onkyos Solid State FM Stereo Receiver ?

About Onkyo's "Dynamic Four 700" there are no informations to find.

 

[Orit]

Saba Telewatt TS100

Hello,
for those who can read some Italian, I'd like to attach an article I've written some time ago about it, on an old radio magazine named "Antique Radio Magazine".
Cheers