A misunderstanding of the idea of tighten a pin of pianos using cardboard

[themaximillyan]

A misunderstanding of the idea of tighten a pin of pianos using cardboard on russian forum technicians
https://afmforum.ru/viewtopic.php?f=25&t=34&start=160
Вот ещё страшилка: сегодня попался дома у клиентки (из случаев, которые называются "купили за дёшево") пианино Петроф, поедено молью и мышами, но самое страшное- полный кавардак с басовыми струнами и колками. Некоторые колки достигали 7,75. Не пойму, какая надобность заставила вколачивать такие большие самопальные колки, которые добили держание строя в басовом регистре?

Tuner from Greece wrote and published a photos in Russian forum of piano technicians. He was outraged that was somebody illiterate tuner wich reinstalled pin (7.25) mm "Petrof" bass and it's became worse. He wrote: "I do not understand what need made such great self-made pins, which finished off all pitch in the bass register?"

Доремидо...”Я так вижу, тут намного серьезнее, чем деятельность всеми известного "бумажного вкручивальщика", который не имея ничего, от слова "совсем ничего", таки оставлял родные колки. Нет, ну надо же хоть как то думать, если существуют способы уменьшения диаметра гнезда с последующей установкой родных колков. Нет ведь,, упертость некоторого контингента настройщиков, приверженному менять колки на больший диаметр, и только так,, дает вот такие результаты.”

I can see there is much more serious than the activity of good us known “a cardboard twister” . Max having nothing, by the word "nothing at all", after leaving their he did native pin with cardboard. No, well, one must at least as something to think if there are ways to reduce the diameter of the hole with the subsequent installation of native pins. Not because of some contingent obstinacy "tuners", commitment to change a larger diameter of a pin, and the only way,, gives here are the results.

Max does not force anyone to use cardboard or put new tuning pin (7.25). But Russian tuners make inappropriate comparisons and they give nasty epithets to his name (" a cardboard twister ") . Max has nothing to do with greece homemade pin, but he is accused. He have same status as barbarian here.
insultingly is it so?
_________________________

[themaximillyan]

[latrobe]

The trade secret of which many piano tuners are not aware is a magic substance known as CA.

It has to be fresh and very thin. Poured with a capillary nozzle next to the pin into an enlarged hole the liquid soaks into the wood and replaces damaged cellulose of the wood. It then fills up the hole. Tuning an instrument so treated becomes a pleasure.

Uprights are best treated on their backs whilst grands are fine. But one must check that the holes don't go right through to allow the magic substance to drip onto the action

Best wishes

David P

[themaximillyan]

The trade secret of which many piano tuners are not aware is a magic substance known as CA.

It has to be fresh and very thin. Poured with a capillary nozzle next to the pin into an enlarged hole the liquid soaks into the wood and replaces damaged cellulose of the wood. It then fills up the hole. Tuning an instrument so treated becomes a pleasure.

Uprights are best treated on their backs whilst grands are fine. But one must check that the holes don't go right through to allow the magic substance to drip onto the action

Best wishes

David P

Hi, David
Max well know CA about. And it's very good condition after it's using.
But,,,
Max is very sad that for the fact that he uses a corrugated cardboard shim, many Russian tuners call him each obscene words.
I do not force them to use it now.
Even a woman from Brazil (not a professional tuner) made it

[latrobe]

Oh dear. I came across such an instrument recently where someone had made such a mess. A friend of mind referred to the photos I took as looking as though it was strung like a tennis racket.

I applied CA to all the other pins of that particular instrument and they have held tune much better than those strung like a tennis racket.

Best wishes

David P

[themaximillyan]

Oh dear. I came across such an instrument recently where someone had made such a mess. A friend of mind referred to the photos I took as looking as though it was strung like a tennis racket.

I applied CA to all the other pins of that particular instrument and they have held tune much better than those strung like a tennis racket.

Best wishes

David P

David, CA is expensive in Russia. This can be a little effective if the piano does not "lay on its back." It's smell almost does not fly out space of our home for months. Then as CARDBOARD any layman can install, I suppose. Therefore, if there are children in the house and people with asthma, the cardboard is only.
regards, Max

[themaximillyan]

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An elderly lady from Saratov in 2005 donated an old "August Förster" upright piano to a music school. When it was transported to Ozinky, the piano did not have good pitch and the action were poor there. Max repaired it as best he could then time. But  there was a problem  loose many pins. Max used method cardboard fix there. He fixed over 80% there.
Nowadays, the piano is very heavily used in school hall of  choreography.
regards,