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Eti-480 Amp Boards + Other Stuffs For Sale!

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jamesjung21

jamesjung21

Member
Joined 2003
Hi guys,:)

My main external exams are almost finished and I need to get these stuffs away to clear out my room overwhelmed with electronic stuffs:eek:

Please e-mail me for photos, because somehow the forum doesn't allow me to post any pic in big enough size to be 'visible':scratch:

All prices are negotiable.

----------------------------------------------------------

The following descriptions are in order of the stuffs shown in photo, left to right.

*1x almost finished ETI-480 amp, with power transistors. I found this one long time ago, with a few of burned resistors on it. So I replaced every single component with new ones....
I've never got to finish this amp though... Because of my new interest in tubes...

*1x same ETI-480 board with some components on... All the caps mounted on it are either ROE or WIMA, even the electrolytic...

*1x unknown (better to say RANDOM) amp with heaps of different components on (has ROE caps on). I don't have any info. about this.

All together for $20
 
jamesjung21

jamesjung21

Member
Joined 2003
Hey, ask me by e-mail if you need bigger pics....

5X 6800uF 50V Elna caps:
 

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jamesjung21

jamesjung21

Member
Joined 2003
2x Diecast cases, top lids have many holes, but the bottom base pieces are almost perfect, except 2 little holes drill on one side. The two little holes are visible in the original high q. pic, but won't be visible in this tiny low q. pic....:whazzat:

Together for $2, but free to anyone who takes many stuffs.
 

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jamesjung21

jamesjung21

Member
Joined 2003
A Sanken (Japan) hybrid chip based mono amp mounted on a heatsink.
This hybrid chip is known as the origin, the mother of all STK chips made by Sanyo.

This is truely the first hybrid amp chip ever designed. This one still works well!

It is impossible to source this chip these days... Been out of production for over 20 years!!

It is a historical stuff I guess....

Some spec:

Chip #= SI-1020

Max RMS power= 20W @ 8ohms

Supply V= can work on both single polarity or dual (single polarity= 46V, dual= +/- 23V)

Absolute max V= 55V or +/- 25V

Freq. range (Po=1W) = 20Hz~100KHz

More specific datas and application circuits will be provided to the buyer...

This one for $7
 

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jamesjung21

jamesjung21

Member
Joined 2003
Guys,

I still have the items above...

And I also have these:

STK4412 Stereo Amp IC (Used, Pulled out from a device, Unknown condition)

STK4131 Stereo Am IC, New

STK439 Stereo Amp IC (Used, Pulled out from a device, Unknown condition)

STK082 Mono Amp IC (Used, Pulled out from a device, Unknown condition)

All four chips for just $20

Conatct me via jamesjung21@hotmail.com if interested.

Cheers,
JayJay
 
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