Aus dem Rumänischen:

"Grüße an alle,
Ich habe eine Saba-Tour schon seit einiger Zeit, genauer gesagt seit 12 Jahren.
Vs2160 ist explodiert und aus Glück habe ich ein anderes gefunden. Aber im alten sah ich ein anderes Aussehen des Platzes. Können Sie mir sagen, warum es anders ist? Oder gibt es verschiedene Versionen? Vielen Dank im Voraus."

Es ist doch nichts anders. Kein Unterschied, ausser andere Hersteller der Kondensatoren. Sie wurden im rechten Bild erneuert.

Naj khanchi aver. Naj diferencija, numaj aver kondensatorenge fabriki. Von sas šaj nevo kerdine ko nesavo momento. Von si neve kerdine ki slika ki rig e chachi rig.

charopses schrieb:

Thank you for the reply.
unfortunately the one that was restored blew up.
probably not a good job

That conclusion is poorly justified und could be quite unfair towards the person who "repaired" (?) the amp.

The amp might have been mistreated...

or

...perhaps an overload?
...perhaps poor thermal contact of the hybrid (STK)?
...perhaps heavy use, thus simply aging /dying of the STK or a transistor?
...perhaps a fake (counterfeit) STK?
(the STKs on both photographs are clearly different, see the pin-numbering in the left one. It's missing in the right photograph.)
...perhaps bad solder joints?
...perhaps....(many other possibilities)?

You cannot expect that a cap replacement serves as preventive maintenance to protect from other failure. That isn't a realistic expectation.

Fake STK are not uncommon and can be difficult to identify:
youtu.be/RQVg_5mVIBM
audiokarma.org/forums/index.ph…er-packs-a-lesson.723936/
diyaudio.com/community/threads/fake-stk3152-stk3102.268473/

It seems almost everything is forged these days ... I'm lately always trying to get parts from private people who inherited repair parts from their grandfather ... no joke ! I just got hold of two pairs of original Toshiba SA 1095 / SC 2565 transistors in perfekt condition, which are almost impossible to find any more ...

Cheers,

Michael

Sanyo, the maker of the original STKs, have published a warning:
(today Sanyo is under Panasonic, no longer an independent firm. Since many years they do not produce STKs anymore.)

https://www.sanyodenki.com/attention_to_purchase_from_onlineshoppingsites.html


[url]https://www.facebook.com/AndrewsElectronics/photos/the-genuine-sanyo-stk-0050-power-amplifier-module-is-on-the-left-the-chinese-cou/771234926343588/[/url]