Comments on: Restoration Of A Badly Tampered Technics Cassette Deck Receiver Amp Model SA380S

By: Bouy

Bouy — Fri, 17 Oct 2025 05:14:23 +0000

Dear Sir,
I too have an a Technics SA-380S and also the service manual is not available. Also, STK 4191 (plain) is not available. Just to make sure are STK 4191 (plain) and STK 4191 II the same. If not then which transistor board did you use in the modification of the above.

Thanks and regards,

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By: Justice

Justice — Thu, 02 Jan 2025 08:36:23 +0000

Mmmm very interesting. I 've been away for quite a longer period of time but now back and such an awakening article, thank you Parasuraman great technical background.

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By: Parasuraman S

Parasuraman S — Sun, 14 Apr 2024 03:08:50 +0000

In reply to Tayo.

Yes, true! But there are excepts which we should learn to accept! Many thanks!

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By: Parasuraman S

Parasuraman S — Sun, 14 Apr 2024 03:08:03 +0000

In reply to Albert van Bemmelen.

Many thanks for your expert analytical comments!

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By: Parasuraman S

Parasuraman S — Sun, 14 Apr 2024 03:07:16 +0000

In reply to Mervin Binda.

Many thanks!

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By: Parasuraman S

Parasuraman S — Sun, 14 Apr 2024 03:06:49 +0000

In reply to Waleed Rishmawi.

Many thanks!

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By: Parasuraman S

Parasuraman S — Sun, 14 Apr 2024 03:06:28 +0000

In reply to Yogesh Panchal.

Many thanks!

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By: Tayo

Tayo — Sat, 13 Apr 2024 15:45:41 +0000

Another satisfying and informative article Sir.
It's a shame the burst IC could not be replaced. Would have loved to see this thing back to 100% operational status.

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By: Albert van Bemmelen

Albert van Bemmelen — Sat, 13 Apr 2024 11:05:22 +0000

Great repair and nice story with unusual STK voltage findings! With indeed a lot of invested cleaning and replacing all capacitors time!
It is incredible to know that not only transformers are fixed in your country by rewiring the broken or shorted coils but even these amplifier modules are made by engineers who even take the time to replace original bad ones.
Of which here the amplifier STK IC 419 module was replaced by a common friend who developed one using transistors to easily fix it on the same Heat Sink so replacing was easy.

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By: Mervin Binda

Mervin Binda — Sat, 13 Apr 2024 10:23:24 +0000

nice piece of work keep it up

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