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 Rectifier/tube amp/SS amp « View previous topic :: View next topic » 
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62jaguar
PostPosted: Fri Jul 27, 2007 10:39 am    Post subject: Rectifier/tube amp/SS amp Reply with quote



Joined: 19 Jan 2007
Posts: 267

as like what bro cosmo requested...

bagi pandangan pasal rectifier/tube amp/SS amp kat sini...

Moved:
ultraman cosmo wrote:

62jaguar wrote:
ehmm..tp kan, apa beza dr sound/response amp yg pkai rectifier diode dgn amp yg pakai rectifier ss?


- bukak title baru la... panjang ceta dia... hahhahaha
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ultraman_cosmo
PostPosted: Fri Jul 27, 2007 12:01 pm    Post subject: Reply with quote

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Ceta pasal tube rectifier.

Zaman sebelim diorang abis godek MegaTron, manusia lom berjaya cipta diode rectifier. Ada pun mungkin sangat mahal.

So pada era tu, diorang pakai tube rectifier seperti 5AR4, 5V4, 5U4, 5Z4 n sebagainya. Tube rectifier ne tugas dia adalah utk push voltage secukupnya utk powertube amplify the signal. Ia bekerja utk tukarkan AC kepada DC utk keperluan tube tube.

Biasanya, amp dulu dulu pakai satu tube rectifier, So kemungkinan utk lebih dari 50watt tu kurang. Salah satu kenapa amp lama lama watt rendah. Tapi utk zaman ne, maybe korang biasa dengar dual rectifier mesa dengan 2 bijik 5U4 dan triple rec mesa dengan 3 bijik 5U4.

Sebenarnya, ada orang suka ss rec dan ada yang lebih minat tube rec. Perbezaan ne disebabkan oleh cara kita main dan defenisi tone tu sendiri. Both ss rec dan tube rec ne ada kelebihan dan kelemahan.

ss rec
- keadah tukar AC dari transformer kepada DC dengan guna diode rectifier.
- ss rec ne terkenal dengan kebolehan menghantar voltage dengan cepat.
- Tahan lasak, tak mudah rosak, bukan tube sure tak der masalah terbakar.
- ia murah, tak panas, dan boleh bagi lebih power berbanding tube rec.
- Jika korang perhatikan semua tube amp 50watt ke atas biasanya guna ss rec kerana if sepatutnya maybe kena pakai samapi 2 3 bijik rec tube.
- Power supply pada tube amp sangat sensitif, Jika ada problem dengan nya boleh menyebabkan kerosakan transformer. Maka utk kerja heavy duti dan voltage sangat tinggi maka diode rectifier lebih baik.
- disebabkan ia berupaya transfer voltage lebih bila diperlukan dan juga release voltage dengan baik, maka ia dikatakan kurang dynamic pada play. Bayangkan anda main distortion pedal pada gain tinggi dan gain serdahana utk chruch. Anda akan dapati pada gain chrunch ia lebih dynamic.
- solid state punya pecutan yang bagus utk bekalkan voltage. So ia respone dengan cepat dengan kekuatan dan volume note kita petik.
- Sebenarnya finger dynamic still ada tapi extra sustain or tone glow ada kurang sebab voltage supply terlalu cekap.
- terlalu cekap pun tak boleh, tapi banyak kelemahan macam tube rec jadi lebih baik. Tu la dunia tube amp.


Tube rec
- keadah tukar AC dari transformer kepada DC dengan guna tube rectifier.
- perkataan yang paling kita kena tau adalah voltage sag.
- sag ne macam kekurang source la.
- voltage sag ne adalah pekara paling penting dalam tube rec.
- nak diterangkan voltage sag ne panjang. so aku pendekkan cam mana ia ada kaitan dengan tube rac.
- Salah satu sebab utama manufacture beralah kepada ss rec adalah sebab utk kurangkan voltage sag.
- tube rec ne lambat respone kepada voltage. Maksudnya masa nak glow dari 0 kepada 500v contohnya adalah lambat berbanding ss rec.
- dan tube juga release voltage lebih lambat dari solid state. Ini ada kaitan dgn sustain sebab voltage lambat realease sepenuhnya.
- Sag pada rec tube ne berlaku bila kita main kuat. Rec tube try push seberapa banyak voltage utk output signal. Akibatnya plat rec akan makan banyak current, ini menyebabkan plat powertube plak menghadapai kelurang current. So hasilnya akan ada abit compress pada powertube signal.
- tube rec ne sensitif, kegagalan or kerosakan pada tube rec boleh tangkap transformer. Itu la paling ditakuti.
- Tapi tube rec boleh bagi banyak benda yang di sukai oleh guitar player terutamanya yang pentingkan dynamic.
- Tube boleh bagi, dynamic tube touch, ini disebabkan kelembapan tube rectifier supply voltage kat power tube.
- kurang harsh maka kedengaran lebih warm, sebab max voltage yang tube rec boleh bagi adalah terhad.
- Apabila pada volume tinggi akan ada sag dan hasilkan sedikit compression pada gain tinggi.
- kelewatan utk voltage realease sepenuhnya menyebabkan ada extra sustain... kita panggil dia tube sustain.
- So tube rec memang ada kelebihannya tapi kurang waras utk dibalasah crack sebab akan belaku sag dan boleh memberhayakan transformer.


Lebih kurang cam tu ceta dia.
Correct me am im wrong.

Special thank to woof sebab buat aku terjun masuk kedunia tube amp.
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Last edited by ultraman_cosmo on Mon Jul 30, 2007 3:50 pm; edited 1 time in total
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IZZI
PostPosted: Fri Jul 27, 2007 12:33 pm    Post subject: Reply with quote



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Location: Melbourne, Australia

thanks for the info ..cayalah cosmo.. dah jauh kayuh..huhuhu..
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keysersoze
PostPosted: Fri Jul 27, 2007 12:40 pm    Post subject: .. Reply with quote



Joined: 21 Aug 2006
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wow.. giler lengkap explenation..nice one..!! dlm bm..mmg senang paham.. Very Happy
skang aku minat lagi tube rectifier.. compare to SS.more 'spongy'.
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ultraman_cosmo
PostPosted: Fri Jul 27, 2007 3:05 pm    Post subject: Reply with quote

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Quote:
Peavey 5150, Bogner Uberschall, Laney LC series, Laney GH series, Hughess & Kettner Trilogy, Hughess & Kettner Warp X... those amps setau aku x de tube rectifiers, so according to u 2, these r NOT tube amps la kan?


Tak tak... for sure kita panggil dia tubeamp... tapi bukan All Tube Amp.
- Just ceta pasal term jer beza, All tube amp dan Tube amp.
- Maksudnya Tube amp tak semestinya all tube amp
- dan All tube amp dah tentu dalam kumpulan tube amp.

Kira tube amp ne terbahagi kepada 2 jenis utama.
1. tube amp dengan semua tube application biasanya tarak diode rectifier.
2. tube amp dengan tube pada preamp dan power section tapi guna diode pada power supply.

dan ada satu lagi gabungan solid state dan tube rectifier yang aku masih kurang faham dan tak dapat nak jelaskan. Kena bertapa lagi ne.

Utk mesa nyer amp, aku lom pernah explore lagi. Maybe tunggu aku terpijak jongkong emas... hahhahaha
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62jaguar
PostPosted: Fri Jul 27, 2007 3:53 pm    Post subject: Reply with quote



Joined: 19 Jan 2007
Posts: 267

wah...ada jugak SS amp and tube rectifier? 1st time dgr...
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ultraman_cosmo
PostPosted: Fri Jul 27, 2007 4:28 pm    Post subject: Reply with quote

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62jaguar wrote:
wah...ada jugak SS amp and tube rectifier? 1st time dgr...


1. Solid State amp = amp tak pakai tube, semua transistor, or op amp or chip. power supply sure pakai diode punya.

2. Solid State rectifier tube amp = tube amp dengan diode rectifier

3. Tube rectifier tube amp = Tube amp dengan tube rectifier

4. All tube amp = Tube amp pakai semua tube, x der transistor or any diode

5. Tapi ada juga modern amp yang pakai diode or op amp or transistor pada stage lain contohnya pada loop feedback or reverb unit.

6. Ada juga boleh split power supply antara ss rec and tube rec macam mesa boogie dual/ triple rectifier.

Dual rectifier mesa = Dua alam, boleh split solid s rectifier and tube rectifier utk power supply.

Triple rectifier mesa = Dua alam, boleh split solid s rectifier and tube rectifier utk power supply.

Single rectifier mesa = Solid State rectifier tube amp pada power supply.
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keysersoze
PostPosted: Fri Jul 27, 2007 5:29 pm    Post subject: .. Reply with quote



Joined: 21 Aug 2006
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Triple rectifier mesa = Dua alam, boleh split solid s rectifier and tube rectifier utk power supply<-- bior btol?? bule ke?

http://www.mesaboogie.com/Product_Info/Rectifier_Series/Triple_Rectifier/Triple_Recto_Closeup/triple_recto_backpanel.html

rectifier switch ader 2 je gak.takde 3 pun..encik BOOGIE nih bior btul.. Surprised
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ultraman_cosmo
PostPosted: Fri Jul 27, 2007 5:40 pm    Post subject: Re: .. Reply with quote

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keysersoze wrote:
Triple rectifier mesa = Dua alam, boleh split solid s rectifier and tube rectifier utk power supply<-- bior btol?? bule ke?

http://www.mesaboogie.com/Product_Info/Rectifier_Series/Triple_Rectifier/Triple_Recto_Closeup/triple_recto_backpanel.html

rectifier switch ader 2 je gak.takde 3 pun..encik BOOGIE nih bior btul.. Surprised


Jangan kata split rectifier, split powertube pun boleh.
- aku sebenarnya dalam plan nak mod amp aku utk boleh guna both 6l6 dan el34. Aper kan daya aku terlupa nak beli el34. so pospon kejap.
- aku dah convert to adjust able Fixed bias utk kebolehan cover both type powertube.
- Kalo dah ada value bagus utk both tube, aku maybe akan convert jadi switching tube 6 selection. 6L6 cool moderate hot dan el34 cool moderate hot.
- thank kepada nik ceriatone yang bantu fahamkan aku akan keadah bias powertube. Dia memang rock.

Maybe Dual dan triple tu refer tu tube rectifier punya voltage supply.
- Triple rectifier mean amp ne boleh handle 3 rectifier tube. kekuatan 3 rectifier tube. Bukan ada 3 jenis rectifier. Still 2 jenis rectifier juga.
- Satu tube rectifier boleh supply utk 2 power tube.
- so 3 boleh supply 6 powertube.
- dan 2 akan supply 4 powertube.

Tapi yang pelik adalah single rectifier mesa tak guna tube rectifier pun.
kakakakakkaka.

Encik boogie memang meng konfusekan orang jer... hahahah. Tu la dia.

adjust able Fixed bias. Ayat pelik tapi benar. fixed tapi adjustable... pelik... betul kaaa... hahahhaha
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Dufresne
PostPosted: Fri Jul 27, 2007 9:53 pm    Post subject: Reply with quote



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Posts: 190

ultraman_cosmo wrote:
Tak tak... for sure kita panggil dia tubeamp... tapi bukan All Tube Amp.
- Just ceta pasal term jer beza, All tube amp dan Tube amp.
- Maksudnya Tube amp tak semestinya all tube amp
- dan All tube amp dah tentu dalam kumpulan tube amp.

Kira tube amp ne terbahagi kepada 2 jenis utama.
1. tube amp dengan semua tube application biasanya tarak diode rectifier.
2. tube amp dengan tube pada preamp dan power section tapi guna diode pada power supply.


Sorry to say, but aku completely disagree dgn statement ni. Ill tell u why...

Its confusing. Its hard enuff for ppl to understand the differences btw solid state dgn tube amps, then dtg plak hybrid amp, then dtg plak modeling technology. Im not just talking bout the differences btw physical structures & electronic component, but soundwise too. Its adequate to say all tube amp is an amp with preamp & pwr amp tubes, without going into details....

There r a few other parts that has been replaced with diode/transistors to compensate the poor performances of electronic tubes to make amplifiers perform better. What im saying is an all tube amp with a tube rectifier doesnt make it an all tube, according to tube purist la kan, sbb dorang ni la yg degil sgt. Im sure u guys dont think like that right?

I think its very commendable that both of u dwell into the world of tube amps, making & modding amps like that. Sbb aku x buat bende2 tu, i dont mod/repair amps, maybe i should la, but not yet. But i understand what r the components involved, what do they do, why is it there. Kalo korang nak bercrite dgn tube purist, DIYers lain yg buat amp, fine bcuz thats ur understanding of it. Tp jgn crite dgn org, esp ppl yg x tau pon ape bende rectifier tu, all of a sudden tube amps ade 2 jenis plak, it will confuse ppl...

My 2 cents...

Cheers... Cool
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62jaguar
PostPosted: Sat Jul 28, 2007 7:48 am    Post subject: Reply with quote



Joined: 19 Jan 2007
Posts: 267

wah..very informative..
walau aku tak paham sgt.. Embarassed
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keysersoze
PostPosted: Sat Jul 28, 2007 9:49 am    Post subject: .. Reply with quote



Joined: 21 Aug 2006
Posts: 142

sori, but akunyer pendapat..

Quote:
Its confusing. Its hard enuff for ppl to understand the differences btw solid state dgn tube amps


aku raselah... masyarakat malaysia cukup bijaksane utk memahami solidstate or tube amp, yg ade tulis tube/ade macam mentol kat blakang amp tu sure tube amp, kalu tarak tu solidstate er..

Quote:
hybrid amp, then dtg plak modeling technology.

errr.. yg ni aku tak tau, dan telinga tak minat. aku rase tak jujur 'memodelingkan' sound..

Quote:
Tp jgn crite dgn org, esp ppl yg x tau pon ape bende rectifier tu, all of a sudden tube amps ade 2 jenis plak, it will confuse ppl...


aku rase tak slah nak citer kat org, membuka minda..ble gak org tau dlm dunia nih ade byk jenis amp...just google it ..

thanks!!
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browndog2woof
PostPosted: Sat Jul 28, 2007 11:19 am    Post subject: Reply with quote

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Last edited by browndog2woof on Mon Jul 30, 2007 9:13 am; edited 1 time in total
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danger3s
PostPosted: Sat Jul 28, 2007 11:19 pm    Post subject: Reply with quote



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nice thread guys, keep em comin.
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omarjamaludin
PostPosted: Sun Jul 29, 2007 3:50 am    Post subject: Reply with quote

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no idea about tube amps etc so i find this very informative..
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