SM-1000A Tube Receiver...any details?

bhuskins

Super Member

• Jun 30, 2015

• #1

So I found a really nice project....SM-1000A tube receiver...looks just like the 1000A.

The only info I've been able to find is a couple pictures from a brochure where it shows that it's 50 wpc versus the 1000A is 40 wpc.

Anybody else have any additional details/schematics/info on this rare model?

 

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canuckaudiog

On a quest for high fidelity

• Jun 30, 2015

• #2

Could you post some more pictures? Of the insides, the rear, stuff like that?

 

bhuskins

Super Member

• Jun 30, 2015

• #3

Here's a top view

 

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bhuskins

Super Member

• Jun 30, 2015

• #4

Full frontal

 

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bhuskins

Super Member

• Jun 30, 2015

• #5

It's farm fresh so I haven't had a chance to pop the bottom yet on the bench

 

canuckaudiog

On a quest for high fidelity

• Jun 30, 2015

• #6

Hm, so far looks the same as a regular 1000A. 7591 power tubes?

 

bhuskins

Super Member

• Jun 30, 2015

• #7

Looks the same but rated 10wpc higher

 

bhuskins

Super Member

• Jun 30, 2015

• #8

7591 output tubes...yes

 

Sansui_Boy

Active Member

• Jun 30, 2015

• #9

its the same as the 1000a but it is probably a revised edition or a diy kit that sansui use to produce when they made their tubes amps in the 60's they made fully assembled amps and diy kits
Here is some info:
http://www.tube-amps.net/Sansui_Tube_Era_Products.htm

it could also be a japan only version of the 1000a

 

canuckaudiog

On a quest for high fidelity

• Jun 30, 2015

• #10

I wonder how they're getting another 10 watts out of it.

Well, I am sure an expert will come along and chime in.

 

Sansui_Boy

Active Member

• Jun 30, 2015

• #11

like i said it could be a revised and improved version of the 1000a since sansui made countless tube amps back in the day...

 

robertokray

I'm your Huckleberry

• Jun 30, 2015

• #12

SM stands for Super Mighty, though I have not seen it used in conjunction with the 1000A designation. Pretty neat. Mine is so boring now.

 

Last edited: Jun 30, 2015

Pio1980

AK Member

Subscriber

• Jun 30, 2015

• #13

I have an SM-80, I also haven't seen the Super Mighty applied to the 1000 series. Power would be increased with higher B+ to the output tubes.

Sent from my SM-N900V using Tapatalk

 

Sansui_Boy

Active Member

• Jun 30, 2015

• #14

http://www.tube-amps.net/Sansui_Tube_Era_Products.htm
this website says the 1000a went through at least 6 major version upgrades which could mean that the sm 1000a was a major upgrade variant?...

 

robertokray

I'm your Huckleberry

• Jun 30, 2015

• #15

Probably the case. I wonder how many are out there? The OP might have a rare beast.

 

Sansui_Boy

Active Member

• Jun 30, 2015

• #16

is this amp gonna be a keeper or are you gonna restore it and sell it for some money i highly suggest you keep that beast because of its rarity and the beauty:drool:

 

bhuskins

Super Member

• Jul 1, 2015

• #17

I'll definitely restore...

Here's a shot from underneath...looks original

Power cord has been cut and there are a few things I see at the power input spot...no fuse and one of the outlets is broken and the other is damaged as well...most likely they are what may have caused the issue? History on this unit is unknown.

 

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Last edited: Jul 1, 2015

bhuskins

Super Member

• Jul 1, 2015

• #18

1st signs of problem area

 

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bhuskins

Super Member

• Jul 1, 2015

• #19

Inside angle

 

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bhuskins

Super Member

• Jul 1, 2015

• #20

Rear inputs/outputs

 

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