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 Tube Poweramp

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indra_co_maniz
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PostSubject: Tube Poweramp   Tue Apr 14, 2009 11:31 am

-under construction- Razz bagi yang punya ide silahkan isi dulu, nanti saya menyusul...


Last edited by indra_co_maniz on Thu Aug 13, 2009 12:40 pm; edited 1 time in total
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PostSubject: Re: Tube Poweramp   Tue Apr 14, 2009 1:40 pm

Apa aja karakter tube yg bs di pake untuk amplifer,pak?
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PostSubject: Re: Tube Poweramp   Wed Apr 15, 2009 11:49 am

umumnya untuk preamp misal, electro harmonix (EH) ada yg biasa ada yg gold pin,
jj tesla, tube juga memiliki persamaan komonen layaknya transistor. sebagai contoh persamaan, jj tesla ecc803 (ekivalen dengan 12 ax7) ini membuang biaya antara 2 jt s.d 4 jt, kalau tube untuk amplifier biayanya bisa membengkak lebih dari preamp.
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PostSubject: Re: Tube Poweramp   Wed Apr 15, 2009 12:14 pm

Secara fisik, bgmn kita membedakan kedua tipe tsb,pak? Gold pin-nya ada di bagian mana? Trims
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indra_co_maniz
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PostSubject: Re: Tube Poweramp   Wed Apr 15, 2009 12:40 pm

Antoni Pasaribu wrote:
Secara fisik, bgmn kita membedakan kedua tipe tsb,pak? Gold pin-nya ada di bagian mana? Trims

dibagian bawah dan ada tulisannya. :shock:
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PostSubject: Re: Tube Poweramp   Wed Apr 15, 2009 1:58 pm

Hehehehe....jgn kaget,pak :-D
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PostSubject: Re: Tube Poweramp   Wed Apr 15, 2009 2:10 pm

Antoni Pasaribu wrote:
Hehehehe....jgn kaget,pak :-D

ga kaget kok mr. admin, btw yang sulit dari perakitan tube adalah mencari OT (output transformernya) Very Happy kalau komponen lain "mungkin" masih banyak ditoko elektronik umum.
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PostSubject: Re: Tube Poweramp   Wed Apr 15, 2009 2:30 pm

Oya,pak. Apakah ada kekhususan tube untuk ampli gitar? Dan brapa lama sebaiknya warming up tubenya sampai stabil & maximal sblm digunakan?
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PostSubject: Re: Tube Poweramp   Wed Apr 15, 2009 2:47 pm

Antoni Pasaribu wrote:
Oya,pak. Apakah ada kekhususan tube untuk ampli gitar? Dan brapa lama sebaiknya warming up tubenya sampai stabil & maximal sblm digunakan?

tidak ada aturan yang mengikat "setahu saya" untuk ampli gitar, mengenai proses warming up paling hanya beberapa menit "biasanya tidak sampai jam-jam.an" sekedar menstabilkan elektron dalam tube saja.
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PostSubject: Re: Tube Poweramp   Fri Apr 17, 2009 9:29 pm

indra_co_maniz wrote:
mengenai proses warming up paling hanya beberapa menit "biasanya tidak sampai jam-jam.an" sekedar menstabilkan elektron dalam tube saja.

apakah beda class, akan membedakan waktu yg di butuhkan untuk menstabilkan elektronnya, pak?
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PostSubject: Re: Tube Poweramp   Sun Apr 19, 2009 9:59 am

tidak ada pengaruh, jika beda class... yg di warming itu tabungnya saja, sedang modul tidak terlalu memberi dampak.. Smile
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PostSubject: Re: Tube Poweramp   Mon Apr 27, 2009 4:24 pm

Apa yang Membuat Sebuah Tabung Itu Dikatakan Bagus ?

The musical detail or ability to reproduce the sound of the instrument is a key factor in assessing a tube for guitar amplifiers. There is no perfect tube available. Each one has strengths, weaknesses and certain factors that contribute to its overall ratings. Usually a compromise is arrived at in the search for premium tone.

All tubes will exhibit some degree of microphonics. Microphonics do not mean that a tube is unusable. You just have to screen them a little closer and determine where they are best suited for use. Input pre-amps are the most sensitive areas of the amplifier. When used in this application most tubes will generate some noise if you tap on them with a pencil during operation. Keep in mind that doing so can actually damage the tube and make it more microphonic or cause it to fail if you hit it real hard. Although they are screened prior to shipment a tube is an electromechanical device and can be damaged during shipment. A microphonic tube will ring, howl or produce general feedback problems. It will be more noticeable at louder volumes or when used in close proximity to a speaker, typically in combo amps. If the tube has good tone at lower volumes and is free from unwanted noise, you use it in a less sensitive part of the circuit, such as tone recovery or phase inverter applications.

Noise is more of a problem than microphonics. A noisy tube will make random popping noises, crackle occasionally or just hum. All tubes have a certain noise floor; this is the inherent background noise that the tube makes in operation. Typically, you will notice this as a soft hiss or "white noise". Tubes designed for high gain can exhibit more background noise. Other components can cause noise problems that may be blamed on a bad tube. Plate resistors are notorious for causing hiss and crackling as they age and begin to fail. A new tube may better amplify these defects, so try substituting another new tube to be sure of the source of the noise.



Sumber : http://thetubestore.com/12ax7review.html
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PostSubject: Re: Tube Poweramp   Sat May 09, 2009 12:34 am

wew... nice info....

Makasih,pak
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PostSubject: Re: Tube Poweramp   Mon May 18, 2009 4:15 pm

ga ada yg ngetik tube lagi yah Smile jarang yg pakai kali ya ?
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PostSubject: Re: Tube Poweramp   Mon May 18, 2009 4:44 pm

mahal pak,,,
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PostSubject: Re: Tube Poweramp   Mon May 18, 2009 4:51 pm

yg sdh yang type tube yg murah apa ? Smile
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PostSubject: Re: Tube Poweramp   Mon May 18, 2009 5:04 pm

tuch CORA mau bukun tube,,tapi masih dalam tahap test...mungkin 2 bulan lagi muncul...
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PostSubject: Re: Tube Poweramp   Mon May 18, 2009 5:09 pm

harga berapa tuh, kalau mic 100 / mic 200 gimana ? Smile
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PostSubject: Re: Tube Poweramp   Mon May 18, 2009 5:15 pm

harga belum tau om,,mic 100 / 200 belom coba,,
GBU
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PostSubject: Re: Tube Poweramp   Mon May 18, 2009 5:22 pm

itu lumayan preamp tabung harganya 500 s.d 680 ribu Very Happy sekedar tube dibawah 1 juta Smile
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PostSubject: Re: Tube Poweramp   Today at 12:58 am

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