Comments on: Tuning Diode (VARACTOR DIODE) Found Short In PANASONIC RQ543ADS TWO-IN-ONE

By: Parasuraman S

Parasuraman S — Thu, 04 Dec 2025 02:53:45 +0000

In reply to Muykit.

Many thanks for your comments enriched with nostalgic recollections and facts of experiences!

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By: Muykit

Muykit — Wed, 03 Dec 2025 04:59:21 +0000

Indeed some little known components may be found in electronic circuits, squeezed among other components, hence turning troubleshooting into a nightmare. A technician may lack the know-how of determinig the integrity of say a diode varactor. Worse still there may be no symbol marking for the component, or even, a misleading indicating mark. Now you are left staring at an impending crisis. The radio you fixed bears a close resemblance with a certain JVC radio my father had in 1986, what a mesmerizing bass sound it had !

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By: Parasuraman S

Parasuraman S — Tue, 02 Dec 2025 08:34:49 +0000

In reply to Lawrence Mc Coig.

Exactly! That is the fuel to keep our engine chugging on in all cylinders! Many thanks for your comments!

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By: Lawrence Mc Coig

Lawrence Mc Coig — Mon, 01 Dec 2025 15:28:19 +0000

Doing good work with your hands is a large reward. Many young ones never know this satisfaction.

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By: Parasuraman S

Parasuraman S — Sun, 30 Nov 2025 01:49:24 +0000

In reply to Mark J.

Many thanks, dear Mark!

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By: Mark J

Mark J — Sat, 29 Nov 2025 21:15:57 +0000

Parasuraman great repair and restoration. These type of articles are very helpful.

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By: Parasuraman S

Parasuraman S — Sat, 29 Nov 2025 16:35:52 +0000

In reply to Albert van Bemmelen.

Many thanks for your expert comments, dear Albert!

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By: Parasuraman S

Parasuraman S — Sat, 29 Nov 2025 16:32:57 +0000

In reply to Yogesh Panchal.

Yes, very nostalgic! Many thanks for your comments, dear Yogesh Bai!

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By: Parasuraman S

Parasuraman S — Sat, 29 Nov 2025 16:31:59 +0000

In reply to Arunkant L Pandit.

Glad to know it was useful! Many thanks for sharing your comments!

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By: Albert van Bemmelen

Albert van Bemmelen — Sat, 29 Nov 2025 11:02:30 +0000

It would be a strange mystery if this radio cassette recorder still wouldn't play after you replaced all those parts and your as always excellent skilled engineering restoration work! I only wonder why you thought that the odd looking part was a varicap or varactor diode because it as you already noticed certainly didn't look like one?
I guess that those bad functioning carbon components are often still found on layers in the cheaper made IR TV remotes.

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