1983 Philips 26CS3890/05R Teletext & Printer
MRG Systems ATP600 Databridge
Teletext Editing Terminal
Microvitec Monitor 1451MS4
BBC Microcomputer TELETEXT Project
Viewdata, Prestel, Philips
Philips Model Identification
1976/77 Rank Arena AC6333 – Worlds First Teletext Receiver
PYE 1980s Brochure
Ceefax (Teletext) Turns 50
Philips 1980s KT3 – K30 Range Brochure
Zanussi Television Brochure 1982
Ferguson Videostar Review
She soon put that down
1983 Sanyo Brochure
Wireless World Teletext Decoder
Unitra Brochure
Rediffusion CITAC (MK4A)
Thorn TRUMPS 2
Grundig Brochure 1984
The Obscure and missing Continental
G11 Television 1978 – 1980
Reditune
Hitachi VIP201P C.E.D Player
Thorn 3D01 – VHD VideoDisc Player
Granada Television Brochure, 1970s
Long Gone UK TV Shops
Memories of a Derwent Field Service Engineer
PYE Australia Circa 1971
Radios-TV VRAT
Fabulous Fablon
Thorn TX10 Chassis
Crusty-TV Museum, Analogue TV Network
Philips N1500 Warning!
Rumbelows
Thorn EMI Advertising
Thorn’s Guide to Servicing a VCR
Ferguson 3V24 De-Robed
Want to tell us a story?
Video Circuits V15 – Tripler Tester
Thorn Chassis Guide
Remove Teletext Lines & VCR Problems
Suggestions
Website Refresh
Colour TV Brochures
1970s Lounge Recreation
CrustyTV Vintage Television Museum
Linda Lovelace Experience
Humbars on a Sony KV2702
1972 Ultra 6713
1983 Philips 26CS3890/05R Teletext & Printer
MRG Systems ATP600 Databridge
Teletext Editing Terminal
Microvitec Monitor 1451MS4
BBC Microcomputer TELETEXT Project
Viewdata, Prestel, Philips
Philips Model Identification
1976/77 Rank Arena AC6333 – Worlds First Teletext Receiver
PYE 1980s Brochure
Ceefax (Teletext) Turns 50
Philips 1980s KT3 – K30 Range Brochure
Zanussi Television Brochure 1982
Ferguson Videostar Review
She soon put that down
1983 Sanyo Brochure
Wireless World Teletext Decoder
Unitra Brochure
Rediffusion CITAC (MK4A)
Thorn TRUMPS 2
Grundig Brochure 1984
The Obscure and missing Continental
G11 Television 1978 – 1980
Reditune
Hitachi VIP201P C.E.D Player
Thorn 3D01 – VHD VideoDisc Player
Granada Television Brochure, 1970s
Long Gone UK TV Shops
Memories of a Derwent Field Service Engineer
PYE Australia Circa 1971
Radios-TV VRAT
Fabulous Fablon
Thorn TX10 Chassis
Crusty-TV Museum, Analogue TV Network
Philips N1500 Warning!
Rumbelows
Thorn EMI Advertising
Thorn’s Guide to Servicing a VCR
Ferguson 3V24 De-Robed
Want to tell us a story?
Video Circuits V15 – Tripler Tester
Thorn Chassis Guide
Remove Teletext Lines & VCR Problems
Suggestions
Website Refresh
Colour TV Brochures
1970s Lounge Recreation
CrustyTV Vintage Television Museum
Linda Lovelace Experience
Humbars on a Sony KV2702
1972 Ultra 6713
Sharp Optonica Amplifier SM-4646H

I'd have thought it fairly easy to obtain high power's these days, but getting the quality to match is a different story I guess.
If I had the space, a pair of these would do rather nicely....
With a sensitivity of 99dB for 1 watt and a response from 18hz-20khz, I would think you could say they cover the audio spectrum rather well.
To understand the black art of electronics is to understand witchcraft. Andrew.
And to think, about 25 years ago I used to go to a local junk auction every Monday, where, if one was lucky enough, all manner of equipment of this type would turn up and could be bought for £2 to £3 a piece.
It was all labelled as "House Clearance".... Some was genuine house contents from deceased persons' homes, much more was ex local bin collection scavenging by the refuse crews, but either way there was a lot of good stuff to be had for peanuts.
Why did I only buy the the tellies?.......................

Never mind Marion, to be honest, most run-of-the-mill "hifi" stuff is cheap rubbish. All too often I see on ebay for example, a turd offered as treasure. ?
To understand the black art of electronics is to understand witchcraft. Andrew.

Anyway, back to a treasure, the amplifier has been working nicely almost 12 hours solid now.
Oh, and the amplifier also came with a cassette deck but as I have no cassettes left, I'll obtain one for testing.
To understand the black art of electronics is to understand witchcraft. Andrew.

What does amuse me - but dates the amp well - is that as befits an amp of its position in the range (I suspect the top) is how it has a proliferation of knobs and switches to tweak and adjust everything. Yet in just a few years, a British amp would by comparison have just a switch to select the source and a volume control, and that would be it.

Posted by: Cathovisora proliferation of knobs and switches to tweak and adjust everything.
I guess it provided something to do whilst listening to the music, these day's people would just fiddle on their mobile phone.
To understand the black art of electronics is to understand witchcraft. Andrew.

Posted by: PYE625
Oh yes please !......but could I live with them.....or in them ?
Oh well for now it looks like I'll have to put up with their distant cousins which have been playing 'Smooth Jazz' all night and melting my ears with pleasure.....A pair of Tannoy 'Devon' speakers driven by Quad 66 preamp and a 303 power amp all fed by a Quad 66 CD or Rega planer 3 Turntable. The combination just fills the whole room with rich silky smooth sound with a mere 45 watts per channel.
Now if only I could get hold of a Quad II amp at a sensible price to compliment the one I already have here and upgrade the system to a whole 12 watts per channel of bliss...... ?
Marc
BVWS member
RSGB call sign 2E0VTN

I will be the odd one out, those Tannoy speakers do nothing for me, in fact I will use a swear word and say I am listening to a small "DAB" (That's the swear word) radio at the moment and thoroughly enjoying Classic FM, is that another swear word. ?
Frank

No Frank, you carry on enjoying it....classic FM that is, I shall refrain from any BAD (sorry, DAB) comments. ? ?
To understand the black art of electronics is to understand witchcraft. Andrew.

Where I am near Haverhill, Suffolk DAB is better than FM on this clock radio, no interference nice and clear. I don't know which transmitter site DAB or FM I am listening to though.
Frank

Probably Mendlesham, but sadly no Anglia television on CH11 405 lines anymore ?
To understand the black art of electronics is to understand witchcraft. Andrew.

Possibly Mendlesham but Sudbury and Sewards End ( Saffron Walden) have Main DAB transmitters that cover the area, perhaps not as strong as Mendlesham but nearer.
I will try and find which channel I am receiving, that should confirm which transmitter but I am not sure if the radio gives that info, I will look tomorrow.
Frank

Posted by: PYE625The numerous switches were rather noisy and responded well to a squirt of switch-cleaner. The volume control pot and tone controls are very good quality items and needed no such treatment.
Very nice to see one of these amplifiers back in service. Back in the day the company I worked for was an Optonica agent because this range of products gave a lot of 'bang for your buck' and very reliable. The same could not be said for later products that were in production c.1980 onwards. At that time we were getting roughly 50% unboxing failure and replacement parts typically took up to a year! Popular choice was SM-7100 together with a pair of UK made speakers.
Rich
Rich

Hello, I have a sharp 4646 in my hand, but they removed the cards inside and I will draw and restore. Do you have 4646 pcb card design diagram? can you contact me please tarik.aslan20@gmail.com

Posted by: @tarikDo you have 4646 pcb card design diagram?
Hi Tarik, welcome to the forum.
As a new member you've not yet earned access to our data library but as a good will gesture, I've e-mailed the service manual to you ?. If you need any help with the repairs please ask. There are many audio guys on the forum that will be able to assist like Rich above, he still works in the trade, and with high-end Audio.
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