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Expert TA940 - A forgotten OEM 70's Marantz receiver (NUDE PICS INSIDE!)

Coconuts 500

Active Member
This is the Expert TA-940. A forgotten Marantz receiver as if taken right out of the 22xx series (NOT to be confused with the 80's Marantz SR-940 model!). It sounds like it, it's built like it, but it doesn't (really) look like it - on the outside. The inside tells another story.

It's a 25wpc receiver (at 8 ohms, 27-33 for 4 ohm). Its got a rather nice wood case. I believe it the whole thing was built in 1978. There was also a higher model, named TA960. I don't have that.

And now for some pics!

power.jpg

Some of the lights are out. I might have to talk to dwojo about that. ;) The tuning wheel is very heavy, just like on a real Marantz.


front.jpg

Front in better light. Note that you cannot enable both main and remote speakers simultaneously...

back.jpg

...Or can you? Notice that Quadraphase switch on the back? I have never tried that.

inside.jpg

Nude pic! Looks like any old Marantz, doesn't it? :thmbsp:

inside2.jpg

That transformer is very large! See those two gold caps on the psu board? Looks like a previous owner has done some repairs on this one. The filter caps are supposed to be 2x 4700uF, but they have coupled up two 2200uF ones as a replacement. And the original one beside it has certainly seen better days! This receiver is in a serious need of a recap!

inside3.jpg

Another angle. You can almost see the output transistors on this one.

transistor.jpg

And what do you know? There they are! :)
 
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Very nice. Thanks for sharing.

I wonder why it is Made in Taiwan and not in Japan like the Marantz receivers. :scratch2:
 
I think this is a Superscope (by Marantz) Model R-1220.

Thanks for the info! By doing further research, it seems that this can be comparable to the Superscope R-1250. Since the 1220 is rated at 10wpc, it is not the same. I also saw a video of its internals, and they look completely different, but has the same faceplate. Very interesting, this Superscope line! I have found that there were at least the following models: 1220, 1240, 1250, 1262 and 1270. All rated at half of the two last digits. I E 1240 = 20wpc, etc.
 
I've now seen a picture of the inside of the Superscope R-1240(e) and it looks nearly identical to this. So this mystery has now been solved!

Superscope R-1240:

tnr1240.jpg


Inside:

wslipqdaekkc12920734394.jpg


The only difference I can see is that the Superscope only has three fuses instead of five as the Expert does. They rest are probably located on the underside.
 
Agreed, that looks exactly like my superscope r-1240 inside and out.

Nice little unit really... :music:


Edit: When you depress the speakers main remote button, it engages all four speakers. You cannot however have only the remote speakers active. Just an fyi

Also, the quadraphase switch in the back seems to reverse polarity on the remote set of speakers. Not much, if any, else.
 
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Hello, never seen this expert-superscope-marantz before.
Expert was/is? a german dealership - chain. The unit sure was made for the german market, the IEC power - connector, the DIN- antenna socket, the extra fuses tell the story.
Also, the golden Roederstein replacement caps sure come from Germany.

regards, Helmut
 
very cool. i also have a superscope r-1240. its the only black face (pre bpc) superscope ive ever seen. intresting to see other variations of it. i wonder how many other weird off-brands used rebranded marantz-superscope receivers.. hmmmm...
 
Dear Folks,
Maybe you or somebody can help here.... :)
I have a Superscope R1240, but the "stereo" button is not working when listening to the radio. (So it is always mono.)
My father is an expert so with a wiring diagram it would be easier to start with.
Can you help with this diagram (or similar Marantz),, or so you have a hint where to start?
Thansk for your help/support here.
Tamas from Hungary
 
Dear Folks,
Maybe you or somebody can help here.... :)
I have a Superscope R1240, but the "stereo" button is not working when listening to the radio. (So it is always mono.)
My father is an expert so with a wiring diagram it would be easier to start with.
Can you help with this diagram (or similar Marantz),, or so you have a hint where to start?
Thansk for your help/support here.
Tamas from Hungary

Check out this link https://www.hifiengine.com/manual_library/superscope/r-1270.shtml You may need to set up an account to get access to the R-1270 documents. It's not the R-1240 but should be helpful. Good luck.
 
Hello, never seen this expert-superscope-marantz before.
Expert was/is? a german dealership - chain. The unit sure was made for the german market, the IEC power - connector, the DIN- antenna socket, the extra fuses tell the story.
Also, the golden Roederstein replacement caps sure come from Germany.

regards, Helmut
Expert WAS AN SWEDISH RETAIL CHAIN WITH STORES ALL OVER SWEDEN SO ARE OEM FOR THEM. DID HAVE STORE IN MY HOME TOWN. BUT DINT NOW THE WERE IN GERMANY ALSO? BUT FIND OUT NOW THIS Expert International GmbH is a Swiss consumer electronics retail chain headquartered in Zug, Switzerland
 
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