904L 9.52 * 1.24mm igwe anaghị agba nchara tubing kemịkalụ kemịkalụ, Gramophone Dreams #70: Sutherland Engineering SUTZ & Lounge Audio Copla preamp, Dynavector DV-20X2 na XX-2 MKII katrij

Mana ka m na-ede kọlụm kwa ọnwa a, a na m achọ inwe mmetụta dị iche, dịka ịnya ụgbọ ala Ford '70s na-apụ n'okporo ụzọ na idekọ motels na ọdụ mmanụ ụgbọala.Njem ahụ bụ ihe na-atọ ụtọ, dị mfe, nwere nnukwu echiche na nkwụsị na ụlọ ngosi ihe mgbe ochie ụgbọ ala ọ bụla, ugbo agwọ na ọgba stalactite.

Nkọwapụta

904L 9.52*1.24mm igwe anaghị agba nchara eriri igwe tubing suppliers

Alloy 904L tubing (UNS N08904) maka ojiji na ngwa ndị chọrọ agafeghị oke na elu corrosion nguzogide.Alloy 904L bụ obere carbon high alloy austenitic igwe anaghị agba nchara, nke emepụtara na mbụ iguzogide corrosion na itughari sulfuric acid.N'ihi nchikota nke chromium, nickel, molybdenum na ọla kọpa, klaasị a emeela ka ọ dịkwuo mma n'iguzogide acid na-ebelata ike, karịsịa sulfuric acid.Alloy 904L tubing na-eguzogidekwa ọgụ chloride site na ma pitting/crevice corrosion na nrụgide corrosion cracking.Alloy 904L bụ ihe na-abụghị magnetik n'ọnọdụ niile, nwere ike dị ịtụnanya, ma nwee ezigbo usoro na weldability.

N'ihi ihe ndị a, onye nwere ike ịhụ alloy 904L tube na ọtụtụ ngwa.Ndị a na-esite na mgbakọ nchacha ihe bara uru na akụrụngwa mmepụta acid na fatịlaịza, nhazi akwụkwọ na akwụkwọ, ihe eji eme ka mmiri dị jụụ.Ejiri ya na usoro nwere sulfuric ma ọ bụ phosphoric acid, 904L na-egosiputa nguzogide ya na corrosion sitere na acid ndị ahụ.Ụlọ ọrụ akwụkwọ, gas, ọgwụ na kemịkal na-ejikwa 904L maka nguzogide ya ma jiri ya mee ihe na 400-450 degrees C. Alloy 904L tubing nwere ike welded, machined, heat treat, annealed, hardened and cold work for many purpose.

UNS NO8904, nke a na-akpọkarị 904L, bụ obere carbon high alloy austenitic igwe anaghị agba nchara nke a na-ejikarị eme ihe na ngwa ebe njirimara corrosion nke AISI 316L na AISI 317L ezughị oke.

Mgbakwunye ọla kọpa na ọkwa a na-enye ya ihe ndị na-eguzogide corrosion kariri igwe anaghị agba nchara chrome nickel, karịsịa na sulphuric, phosphoric na acetic acid.Agbanyeghị, enwere obere ojiji na hydrochloric acid.Ọ na-enwekwa nnukwu nguzogide pitting na ngwọta chloride, nguzogide dị elu nke ma crevic na nrụgide corrosion cracking.Alloy 904L na-arụ ọrụ nke ọma karịa igwe anaghị agba nchara austenitic ndị ọzọ n'ihi ntinye dị elu nke nickel na molybdenum.

The ọkwa bụ na-abụghị magnetik n'ọnọdụ niile na nwere magburu onwe formability na weldability.Ọdịdị austenitic na-enyekwa ọkwa a ike siri ike, ọbụna ruo na okpomọkụ nke cryogenic.

Ọdịnaya chromium dị elu na-akwalite ma na-edobe ihe nkiri na-agafe agafe nke na-echebe ihe onwunwe n'ọtụtụ ebe ndị na-emebi emebi.904L nwere nnukwu nguzogide mmiri ozuzo nke ferrite na sigma na nhazi na ịgbado ọkụ karịa igwe anaghị agba nchara ndị ọzọ nwere molybdenum dị ka 316L na 317L.Enweghị ihe ize ndụ nke corrosion intercrystalline na jụrụ oyi ma ọ bụ ịgbado ọkụ n'ihi ọdịnaya carbon dị ala.Okpomọkụ ọrụ ya kacha dị na 450ºC.

Nke a ọkwa bara uru karịsịa na njikwa na ngwa tubing ngwá ọrụ ebe 316 na 317L adịghị adabara.

Igwe anaghị agba nchara 904L na-ejikọta molybdenum na ọla kọpa na ígwè maka oke iguzogide ibelata acid dị ka sulfuric acid.Ọ na-eguzo nke ọma na chlorides na gburugburu ebe obibi maka obere pitting na crevice corrosion, yana nchekasị corrosion cracking.

904L igwe anaghị agba nchara na tubes ngwaahịa nso 904L igwe anaghị agba nchara na tubes nkọwapụta: ASTM A/ASME SA 269/677 904L igwe anaghị agba nchara na tubes Sizes (enweghị nkebi): 1/2 ″ NB - 8 ″ NB igwe anaghị agba nchara. Nha (ERW): 1/2 ″ NB – 24″ NB 904L igwe anaghị agba nchara na Tubes Sizes (EFW): 6″ NB – 100″ NB

»904L Igwe anaghị agba nchara na tubes akụkụ: A na-arụpụta ọkpọkọ niile wee nyochaa / nwalee ya na ụkpụrụ ndị dị mkpa gụnyere ASTM, ASME na API wdg. Njirimara ndị a ka akọwapụtara maka ngwaahịa akpọre akpọre (efere, mpempe akwụkwọ na eriri igwe) na ASTM B625 .Ngwongwo ndị yiri ya mana ọ bụchaghị otu ka akọwapụtara maka ngwaahịa ndị ọzọ dị ka ọkpọkọ, tube na mmanya na nkọwapụta nke ha.

Ngwa

A na-eji igwe anaghị agba nchara 904L na kemịkalụ, ọgwụ, mmanụ na gas.Ngwa a na-ahụkarị gụnyere tankị, valvụ, ndị na-agbanwe ọkụ, flanges na ọtụtụ ihe.Mgbakwunye nke ọla kọpa na ngwakọta nke igwe anaghị agba nchara 904L na-enyere aka ịkwado ya maka ihe ndị dị ka tankị na ngwaahịa ndị ọzọ ejiri na njikwa sulfuric na phosphoric acid.

N'ọnwa a, a ga m akwọ ụgbọ ala kilomita ole na ole gbadaa Ford odometer na-enyocha mmetụta nke ngwaahịa Ron Sutherland kachasị ọhụrụ na-ebugharị ugbu a: $3,800 transimpedance dynamic preamplifier akpọ SUTZ.N'ụzọ, m ga-alaghachi na $1250 Dynavector DV-20X2 dynamic cartridge ma chọpụta ihe nwere ike ịbụ ihe kacha mma na Dynavector cartridge line: $2150 XX-2 MKII.
N'ikpeazụ, a ga m ezumike, pụọ n'ụgbọ ala, wee mata onwe m na Lounge Audio's $355 Copla preamp, nke m ji ịnụ ọkụ n'obi na-eji kemgbe enyocha ya na February 2018, mana edebeghị m kemgbe nyocha.
Sutherland Engineering SUTZ M nọrọ oge dị ukwuu na-agbalị iche n'echiche ụda electromagnetic niile kpatara site n'ife nke osisi ejikọrọ na ụdị igwe oyibo na mpaghara magnetik.Atụrụ m anya na oghere ndekọ ahụ gbagoro agbagoro na obere agịga / cantilever/coil, na-agbatị waya erughị ala ma na-amagharị eriri igwe ahụ site na ahịrị ike ejiri obere magnet akpụkpọ ụkwụ mebere.Ka eriri igwe na-agafe n'ọkpụkpụ magnetik nke magnet, a na-eme ka ọ dị ugbu a n'ogologo ha.
Amụtara m ise ihe ụfọdụ n’iwu Faraday n’ụlọ akwụkwọ elementrị.N’ụlọ akwụkwọ sekọndrị, otu onye nkụzi kọwara iwu Lenz, bụ́ nke siri ike nghọta ọbụna karị, sị: “Mgbanwe nke voltaji na-akpata n’ihi mgbanwe nke ndọta n’ahụ́ na-emepụta ikuku nke magnetik ya dị iche n’ịgbanwe nke kpatara ya.”
N'ụzọ dị ịtụnanya, iwu Lenz na ihe ndọta magnetik ya batara n'uche m mgbe m na-agbalị iche n'echiche otú usoro ụda a na-achịkwa ugbu a ga-esi arụ ọrụ na ihe kpatara ha ga-eji metụta ụda cassette n'ụzọ dị otú a.Ncheta a mere ka m tụọ aro na iji obere sekit dị mkpụmkpụ (enweghị ntinye voltaji) na-eme ka ihe dị ugbu a na-asọ site na eriri cartridge, nke n'aka nke ya na-eme ka iwu Lenz dịkwuo elu, si otú ahụ na-akụda iji nweta ihe kachasị mma nke mmegharị ahụ. eriri cantilever (ihe odide ala ala 1).
M wee gbalịa iche n'echiche otú nke a dị ugbu a ga-esi tụnyere damping nke omenala shunt resistor na-enye n'ihu ọkwa na-arụ ọrụ.M na-eche mgbe niile na ihe niile dị iche iche na ibu / damping na-emetụta otú nke ọma stylus tracks grooves nke ndekọ, na m na-abịa ná nkwubi okwu na ndịiche na damping (ihe ọ bụla ha nwere ike ịbụ) na-ahụ maka iche iche na nsochi, uzo. mkpọtụ, visceral mmetụta Causal nkọwa na intermodulation distortion.
Ka ọ dị ugbu a, ekpuchiela m ụyọkọ nke usoro phono na-ejikọta ọnụ, mgbanwe mgbanwe dị iche iche, na usoro ụda olu atọ "transimpedance": Lounge Audio's Copla maka $355, Dynavector's P75 MK3 phono stage for $895, na Sutherland Engineering's Little Loco maka $3,800.
N'akụkọ ihe mere eme, uto m na ịkpọgharị ụda phonograph akwadola ihe ntụgharị nickel dị elu nke na-anwa ịpụta ikuku na filament nke RIAA tube EQ.N'oge na-adịbeghị anya, Otú ọ dị, a na m enweta ozi dị ala, nke dị elu site na Sutherland Engineering Little Loco nke a na-achịkwa phono nke ugbu a m na-eji My Sonic Lab's low-output (0.3mV), obere impedance. (0 .6 ohm) Ultra Eminent EX dynamic cartridge.Obere Loco yiri ka ọ na-eme ka obere nkọwa nke katrij a na-enye ya.E jiri ya tụnyere ụda nke Eminent EX na ogbo na Parasound Halo JC 3+ phono stage, a na-akpọ My Sonic-Loco combo buru ibu (n'ihe gbasara oyiyi na ụda ụda) na sleeker (n'ihe gbasara ederede na ọnụ ọgụgụ) - na abyss n'azụ.Ndị a bụ ndetu nkịtị.
Ya mere na mberede m rapaara: kedu ka m ga-esi nweta ịgbachi nkịtị na microdata na-enweghị ọka na-enweghị amanye ịhapụ CinemaScope na teknụzụ tube nke RIAA?
Akọwara m enyi m Chad Stelly nsogbu a, bụ́ onye wetara enyi anyị bụ́ Ron Sutherland nke Sutherland Engineering nsogbu ahụ (ihe odide ala ala peeji 2);Ron zara ozugbo, “Egboziri m ya!”Otu izu ka e mesịrị, esonyere m.Ihe ohuru ohuru nke Ron mere, ihe mbido “SUTZ” transimpedance preamplifier, na ntinye ndọta 47 kΩ nke Tavish Design Adagio all-tube phono ogbo.
SUTZ preamp sitere na Sutherland Engineering na-eji otu chassis 17 x 2 x 13 ″ dị ka obere Loco preamp m kọwara na Jenụwarị 2022 stereophile m.N'ezie, SUTZ dị ka obere Loco n'ime na n'èzí.otu atọ jumper-arụ ọrụ uru ntọala dị ka Little Loco.Mgbe m jụrụ uru SUTZ nwere, Ron zitere m email na SUTZ niile ga-enwe ntọala uru ise, mana ọ baara m mba.Igwe ihe na-ebugharị transimpedance enweghị "uru" n'ihi na nkeji ntinye (amperes) adabaghị na nkeji mmepụta (volts).(Ihe e dere n'ala ala peeji nke 3)
Tupu m amalite, m kwesịrị ikwu na otu nke components m na-eji bụ ihe m na-akpọ ihe niile-tube "ezigbo-fi" usoro: a phono katrij na nzọụkwụ-elu transformer jikọọ a 10.5 ″ Thomas ogwe.Schick Dr. Feickert Blackbird rotary EQ, Tavish Design Adagio phono stage or SunValley SV EQ1616D phono stage, Lab 12 Pre 1 line level preamp jikọtara na Elekit TU-8600S SE amplifier (ya na Western Electric 300B tubes), maka Falcon Gold.N'oge a na-ekiri ihe nkiri, a na-echetara m mgbe niile otú m si hụ usoro a n'anya na ka o si dekọọ ya na ụda ziri ezi na ihe ndekọ dị adị karịa usoro ọ bụla m wuru kemgbe m malitere ide maka Stereophile.
Dynavector DV-20X2 Ebe ọ bụ na m tụlere ya na Nrọ Gramophone #10, ọ nweghị cassette dị n'ime ụlọ m egwuri egwu karịa ihe ọkpụkpọ Dynavector DV-20X2 $1,250.Ejila m ọtụtụ narị awa egwu egwu ya na opekata mpe iri na abuo turntable.Ọ na-egwu katrijị turntable n'anya: crisp, ngwa ngwa, na nghọta.O nwere mojo-vivo zuru ezu iji mee ndekọ dị ike yana ihe ntụgharị dị nkọ na gbaa, na-enwe ahụ iru ala kpamkpam.N'ebe ọnụahịa a, obere cartridges nwere ike ime ha abụọ.Ọtụtụ ndị mmadụ enweghịkwa ike.
Ọbụlagodi na oge niile ejiri, 20X2 ka na-ejisi ike imepụta egwu na-agbawa agbawa ma na-atụrụ ndụ, na-eji ikwesị ntụkwasị obi na-emegharị otu n'ime ndekọ kachasị mma na nke kacha ewu ewu site n'aka injinia ubi David Lewiston: Golden Rain LP “Ketjak: Ramayana Monkey Chant” (LP Nonesuch Explorer).H72028).Ntugharị siri ike nke ndị mọnk 200 na-abụ n'otu n'otu dị ịtụnanya, n'agbanyeghị na m maara na ha ga-adaba na mkpu 'tak'.A na-ahazi ndị mọnk nọ n'ogige ahụ na okirikiri concentric, nke a na-aghọta na anya.N'okwu ndị dị jụụ, anya m na-enwe mmasị ịkọwapụta ebe ndị mọnk na-abụ abụ n'ebe dị anya na mpaghara ndị a.Mgbe ndị mọnk kwụsịrị iti mkpu, ụda ambient dị n’ogige ahụ mere ka m hụ ma hụ ọnụnọ ha.Cartridges nwere ọkwa nghọta dị ụkọ na ọkwa ọnụahịa a.
Oge ọ bụla m ji Dynavector 20X2 MC, Sutherland SUTZ, na SunValley SV EQ1616D na-egwu egwu “Monkey Chant”, ihe doro anya, ọsọ ọkụ, na ike dị ike n’egbughị oge.ndị na-agafe agafe na-ewere ọnọdụ dị iche iche na ụda dị nkọ nwere oghere pụtara ìhè n'etiti olu onye ọbụ abụ.Maka m, nke a bụ ụdị wow ọhụrụ!Oge: SunValley tubes na-akwalite ozi diski dị ugbu a nke ọma.
Dynavector XX-2 MKII Chad Stelly nwere obi ụtọ na m na ederede gbasara "mmekọrịta dị egwu" nke Dynavector XX-2 MKII dynamics na Sutherland SUTZ, n'ihi ya, m kpọtụụrụ Mike na Toffco, onye nkesa US Dynavector, Prank (ihe odide ala ala 4), bụ onye kwadoro. Nleba anya Chad na $2,150 XX-2 MKII nwere ike bụrụ “ebe edo edo” na ahịrị katrij Dynavector.Nke a bụ oge kacha atọ ụtọ maka Dynavector.
Dynavector cartridges ka na-amasị m n'ihi na ha na-ekwu na ha na-elekwasị anya na mmemme injinịa na isi nsogbu ahụ: imewe sekit magnetik.Webụsaịtị ha na-akọwa, sị: “Ngụkọta na nnwale anyị egosiwo na ọbụna obere mgbanwe mgbanwe na mgbanwe ikuku nwere ike ime mgbanwe n'ike ndọta dị na oghere ikuku, si otú ahụ na-emetụta nhụsianya intermodulation nke mgbaàmà mmepụta.”5 magnets kama samarium-cobalt ma ọ bụ neodymium-boron.Ebumnuche ekwuru nke Dynavector's patented “flux damping” na “field magnetik” bụ ibelata “mgbanwe ndọta achọghị”.
Dị ka ebe nrụọrụ weebụ Dynavector si kwuo, XX-2 MKII na-eji Alnico 5 magnetik (ihe odide ala ala 5) n'ihi na ha nwere nnukwu njupụta magnetik nke, ma e jiri ya tụnyere ụdị magnet ndị ọzọ, "na-emepụta ebe ndọta kwụsiri ike ma si otú a na-ejigide mmepụta kwụsiri ike karị. voltaji"..
XX-2 MKII nwere nguzogide dị n'ime ala (6 ohm) yana obere mmepụta voltaji nke 0.28 mV.A na-edobe moto ya n'ime ụlọ aluminom 7075 siri ike yana katrij dị gram 9.2.A kọwapụtara nrubeisi na 10 µm/mN na Dynavector na-akwado ibu dị ala (30 ohms).
20X2 na-eji stylus MicroRidge mepere emepe na cantilever tube dural, ebe XX-2, cartridge dị ọnụ ala na ahịrị Dynavector, na-eji cantilever boron siri ike nwere stylus Pathfinder nwere kọntaktị ahịrị 7 × 30 µm n'ọnụ ọnụ.Ọ bụrụ na m cheta nke ọma, nke a bụ otu diamond Ogura nke Lyra na Koetsu ji mee ihe.
Ihe odide ala ala ala 3: N'iji teknụzụ chọpụta uru nke transimpedance phono stage abụghị ihe siri ike: ọ bụ otu ihe ahụ ka ọ dị na mbụ, oke nke mmepụta voltaji na voltaji ntinye ma ọ bụ mmepụta ihe dị ugbu a na ntinye ugbu a - họrọ otu n'ime ha.Mana nke ahụ abụghị oke mmasị maka ọkwa phono ntinye ugbu a, onye ọrụ ya bụ ịtụgharị ugbu a ka ọ bụrụ voltaji.Maka ngwaọrụ dị otú ahụ, ihe atụ nke mgbanwe mgbanwe nzọụkwụ bụ nke a na-apụghị ịgbagha agbagha, nke bụ eleghị anya ihe kpatara Ron Sutherland ji kpebie ịkpọ ngwaahịa a SUTZ: enwere ike iwere ya dị ka ụdị mgbanwe mgbanwe ọhụrụ, ọ bụrụgodị na ọ bụghị onye ntụgharị na mbụ. uche.Gịnị kpatara Z na njedebe?Eleghị anya n'ihi na ụzọ eke e ji mara a transimpedance ngwaọrụ bụ ruru nke mmepụta voltaji na input ugbu a, nke nwere nkeji nke impedance, na-egosipụtakarị site na leta Z. – Jim Austin Jun 30 '11 na 12:00
Ihe odide ala ala ala 4: Dynavector Systems Ltd., 3-2-7 Higashi-Kanda Chiyoda-ku Tokyo 101-0031 Japan.Ekwentị: +81 (0) 3-3861-4341.Weebụsaịtị: www.dynavector.com Onye nkesa US: Toffco, 2020 Washington Ave., Unit 314, St. Louis, MO 63103. Ekwentị: (314) 454-9966.URL: dynavector-usa.com
Ihe odide ala ala ala nke 5: Ọnụọgụ ndị na-esote "Alnico" na-ezo aka na alloys pụrụ iche nke aluminium, nickel, cobalt, ọla kọpa na ígwè.Alnico 5 bara ọgaranya karịsịa na cobalt na ntakịrị ihe ndọta karịa Alnico alloys ndị ọzọ.Ihe ọ bụla ọ bụ, gita eletrik nwere Alnico 5 pickups nwere ogologo oge dị ọcha yana ụda na-egbuke egbuke.- Jim Austin
$3,800 maka ọkwa phono dị elu, nke ka mma karịa mkpado ọnụahịa $89,000 dị egwu maka ọkwa CH Precision P1 phono tụlere n'izu gara aga.Na "nwere ike" ụda ọbụna ka mma maka ọnụahịa 24.
Ọ ga-amasị m ịghọta ka ogbo phono transimpedance nwere ike isi na-ada ụda oghe na ikuku mgbe ejiri katrij impedance dị ala dị ala.Ahụmahụ ọtụtụ afọ nke usoro phono ọdịnala akụzierela m na ịkwanye ihe na-ezighi ezi nwere ike ime ka ụda katrij kwụsị.Kedu ihe kpatara na nke a anaghị eme na usoro phono transimpedance?
Chee echiche banyere ya dị ka ndị na-ekwu okwu impedance dị ala, ha na-adọta / dọpụtakwuo ugbu a site na amplifier, ka anyị chee ya ihu, ọ dị mfe ịkwọ ụgbọala ndị na-ekwu okwu na-adị ọkụ na agba karịa ndị na-ekwu okwu impedance dị ala.
Anyị na-ebu Supex SD900 na 1000 ohm, 500 ohm, 100 ohm, 50 ohm na 10 ohm, ụda kachasị dị ọcha na nke kachasị mma bụ na 10 ohm, mana ịchọrọ uru dị elu ma ọ "nwere ike ịbụ" mkpọtụ ma ọ bụrụ na e mere ya ezighi ezi.