Amma yayin da nake rubuta wannan shafi na wata-wata, ina nufin wani yanayi na daban, kamar tukin motar motar Ford ta 70s daga kan hanya da tattara bayanan motels da tashoshin mai.Yawon shakatawa ya kasance mai daɗi, mai sauƙi, tare da kyawawan ra'ayoyi da tsayawa a kowane gidan kayan gargajiya na mota, gonar maciji da kogon stalactite.
Nau'o'in Bututun Karfe Bakin Karfe & Ƙididdigansu.
Bakin Karfe Coil Tubes
Bakin Karfe Coil Tubes ana kera su zuwa ƙayyadaddun abokin ciniki dangane da girman girman bango da kauri, da kuma maganin zafi don aikace-aikace masu wahala.Bakin Karfe Coil Tube an yi shi daidai da API na yanzu, ASTM, da ka'idodin ASME.Hakanan zamu iya samar da manyan bututun Coil diamita don aikace-aikace na musamman.Ana samun samfuran mu a cikin kewayon kauri, ƙayyadaddun bayanai, maki, da girma.
Nau'in Bakin Karfe Coil Tube
- Bakin Karfe 304 Coil Tube
SS 304 Coil Tube yana da layin mai wanda aka yi daga bututun bakin karfe 304.Yana aiki mai kyau don gina layin man fetur na al'ada guda ɗaya ba tare da ƙungiyoyi ba.Bakin karfe 304 welded tubing is quite ninki biyu annealed domin sauki flaring da lankwasawa.
- Bakin Karfe 316 Coil Tube
Bakin Karfe 316 Coil Tube bututun ƙarfe ne na chromium nickel gami da ƙara molybdenum.Yana da babban juriya ga lalacewa da tsagewa, da kuma kyakkyawan ƙarfi da juriya na lalata.
- Bakin Karfe 321 Coil Tube
Grade 321 sigar austenitic gami da aka daidaita ta titanium.Yana da kyakkyawan juriya na lalata kuma ana iya amfani dashi azaman steriliser.Wadannan tubings suna da taurin 217 Brinell kuma suna iya jure zafi da hayaki mai yawa.
- Bakin Karfe 347 Coil Tube
SS 347 Coil Tubes (wanda kuma aka sani da UNS S34700) wani columbium ne kuma tantalum ya daidaita austenitic chromium-nickel bakin karfe wanda aka ƙirƙira don ba da gami nau'in 18-8 tare da mafi kyawun juriya na lalata intergranular.
Ƙayyadaddun ƙayyadaddun Tube Bakin Karfe Coil Tube
Bakin Karfe Coil Tubing ɗinmu ya zo cikin nau'ikan diamita, kauri, ƙayyadaddun bayanai, maki da girma kuma ana iya yankewa da gogewa don biyan bukatunku.
- Diamita: 1/16" zuwa 3/4"
- Girman: 1NB, 1 1/2 NB, 2NB, 2 1/2 NB, 3NB, 3 1/2NB, 4NB, 4 1/2NB, 6NB
- 40 X 40, 50 X 50, 60 X 60, 80 X 80.
- Kauri: 010 "zuwa .083"
- Darajoji: TP - 304, 304L, 316, 316L, 201
- Tsawon: Bazuwar Guda, Bazuwar Biyu & Tsawon Yanke.
- Ƙarshe: Ƙarshen Ƙarshe, Ƙarshen Ƙarshe, Ƙarshen Zare
A wannan watan, Zan yi tuƙi ƴan mil zuwa ƙasa na Ford odometer na yin nazarin tasirin sabon samfurin Ron Sutherland na yanzu: $3,800 transimpedance dynamic preamplifier da ake kira SUTZ.Tare da hanya, Zan kuma koma zuwa $1250 Dynavector DV-20X2 tsauri harsashi da kuma gano abin da zai iya zama mafi kyau a cikin Dynavector harsashi line: $2150 XX-2 MKII.
A ƙarshe, zan huta, in fita daga cikin mota, kuma in sake saduwa da kaina da Lounge Audio's $355 Copla preamp, wanda nake amfani da shi da ƙwazo tun bita a cikin Fabrairu 2018, amma ban yi rubutu ba tun da na yi bita.
Injiniya Sutherland SUTZ Na kwashe lokaci mai tsawo ina ƙoƙarin tunanin duk hayaniya ta lantarki da ke haifar da motsin sandar da aka haɗa da wani nau'in nada a cikin filin maganadisu.Na yi tunanin faifan rikodin rikodin yana rawa daga ƙaramin allura / cantilever / coil taro, yana shimfiɗa wayar tashin hankali tare da girgiza coil ta madaidaiciyar layin ƙarfi wanda ƙaramin maganadisu na doki ya ƙirƙira.Yayin da coils ke wucewa ta hanyar maganadisu na maganadisu, ana haifar da halin yanzu tare da tsayin su.
Na koyi zana wani sashe na dokar Faraday a makarantar firamare.A makarantar sakandare, wani malami ya bayyana dokar Lenz, wadda ta fi wuya a fahimta: “Ƙashin wutar lantarki da ke haifar da canjin yanayin maganadisu yana haifar da wani yanayi wanda filin maganadisu ya saba wa canjin da ya haifar da shi.”
Abin mamaki shine, dokar Lenz da ƙwanƙwasa maganadisu sun zo a zuciyata lokacin da nake ƙoƙarin yin tunanin yadda matakan sauti masu sarrafawa na yanzu za su yi aiki da kuma dalilin da yasa za su shafi sautin kaset ta wannan hanya.Wannan tunowa ya sa na ba da shawarar cewa loda harsashin coil mai motsi tare da gajeriyar kewayawa (babu ƙarfin shigarwa) yana haɓaka halin yanzu da ke gudana ta cikin kwandon harsashi, wanda hakan kuma yana haɓaka jujjuyawar dokar Lenz, ta haka yana daɗaɗawa don cimma matsakaicin yuwuwar motsi na cantilever coil (labari na 1).
Sai na yi ƙoƙari in yi tunanin yadda wannan damping na yanzu zai kwatanta da damping da aka samar da shunt resistor na gargajiya a gaban mataki mai aiki.A koyaushe ina tunanin cewa duk bambance-bambance a cikin kaya / damping yana shafar yadda mai salo ya bi diddigin rikodin rikodin, kuma na yanke shawarar cewa bambance-bambancen damping (duk abin da za su kasance) suna da alhakin bambance-bambancen bin diddigin, tsagi. amo, visceral jin Cikakkun bayanai na Causal da kuma murdiya intermodulation.
Ya zuwa yanzu, Na rufe ɗimbin matakan phono da aka ɗora a layi daya, na'urori masu canzawa daban-daban, da matakan wayoyi na “transimpedance” guda uku: Lounge Audio's Copla akan $355, Dynavector's P75 MK3 phono mataki na $895, da Sutherland Injiniya's Little Loco don $3,800.
A tarihi, ɗanɗanona a cikin sake kunna kiɗan phonograph ya fi son manyan tasfotoci masu haɓaka matakan nickel waɗanda ke ƙoƙarin haɓaka yanayi da filaments na RIAA tube EQs.Kwanan nan, ko da yake, Ina ta yin ƙwanƙwasa a cikin ƙananan matakan, bayanai masu girma daga Sutherland Engineering Little Loco matakan phono mai sarrafa na yanzu da na yi amfani da ƙananan fitarwa na Sonic Lab (0.3mV), ƙananan rashin ƙarfi. (0 .6 ohm) Ultra Eminent EX harsashi mai ƙarfi.Little Loco yana da alama yana haɓaka kowane ɗan dalla-dalla wannan harsashi ya ba shi.Idan aka kwatanta da sautin fitaccen EX a kan mataki a kan Parasound Halo JC 3+ phono mataki, My Sonic-Loco combo ya kasance mafi girma (cikin sharuddan hoto da sararin sauti) da sleeker (cikin sharuddan rubutu da sikelin) - tare da wani rami a baya.Waɗannan bayanan shiru ne.
Don haka ba zato ba tsammani na makale: ta yaya zan sami duk gajeriyar shiru da microdata mara hatsi ba tare da tilasta min barin CinemaScope da fasahar matakin tube na RIAA ba?
Na bayyana wannan matsala ga abokina Chad Stelly, wanda ya kawo matsalar ga abokinmu Ron Sutherland na Injiniyan Sutherland (bayani na 2);Nan da nan Ron ya amsa, "Na warware shi!"Bayan mako guda, na shiga.Sabuwar ƙirƙira ta Ron, “SUTZ” preamplifier transimpedance, zuwa 47 kΩ shigarwar maganadisu mai motsi na Tavish Design Adagio all-tube phono matakin.
SUTZ preamp daga Injiniya na Sutherland yana amfani da chassis 17 x 2 x 13 ″ iri ɗaya kamar yadda ƙaramin Loco preamp na bayyana a cikin stereophile na Janairu 2022.A zahiri, SUTZ yayi kama da Little Loco ciki da waje.Saitunan riba iri ɗaya da aka kunna jumper guda uku kamar Little Loco.Lokacin da na tambayi abin da SUTZ ke samu, Ron ya aiko mani imel cewa duk SUTZs na gaba za su sami saitunan riba guda biyar, amma kawai ya zage ni.Amplifier mai jujjuyawa ba shi da “riba” saboda na’urorin shigarwa (amps) ba su dace da na’urar fitarwa ba (volts)."(shafi na 3)
Kafin in fara, ya kamata in ambaci cewa rukunin abubuwan da nake amfani da su shine abin da na kira tsarin “real-fi” duka-tube: cartridge na phono da na'ura mai ɗaukar hoto da aka haɗa da hannun Thomas 10.5.Schick Dr. Feickert Blackbird rotary EQ, Tavish Design Adagio phono stage ko SunValley SV EQ1616D matakin phono, Lab 12 Pre 1 matakin preamp wanda aka haɗa da Elekit TU-8600S SE amplifier (tare da Western Electric 300B tubes), don Falcon Gold.A lokacin waɗannan jita-jita, ana tunatar da ni koyaushe yadda nake ƙaunar wannan tsarin da kuma yadda aka yi rikodin shi tare da ingantaccen sauti da ingantaccen rikodin fiye da kowane tsarin da na gina tun lokacin da na fara rubuta wa Stereophile.
Dynavector DV-20X2 Tun da na sake duba shi a cikin Mafarkin Gramophone #10, babu kaset a cikin dakina da ya kunna fayafai fiye da $1,250 Dynavector DV-20X2 mai kuzari.Na kwashe daruruwan sa'o'i ina wasa da shi a kan aƙalla dozin guda.Yana wasa kamar yadda nake son harsashi masu juyawa: kintsattse, sauri, da basira.Yana da isassun mojo-vivo don yin rikodi mai kuzari tare da kaifi mai kaifi da harbi, duk yayin da gaba ɗaya annashuwa.A wannan lokacin farashin, ƙananan harsashi na iya yin duka biyun.Mutane da yawa ma ba za su iya ba.
Ko da tare da duk lokacin da aka kashe, 20X2 har yanzu yana kulawa don samar da fashe mai fashe amma kiɗa mai annashuwa, da aminci yana sake ƙirƙirar ɗayan mafi kyawun rikodi na injiniyan filin David Lewiston: Golden Rain LP "Ketjak: Ramayana Monkey Chant" (LP Nonesuch Explorer).H72028).Juyin juyayi mai ƙarfi na sufaye 200 da suke rera waƙa gaba ɗaya abin ban mamaki ne, kodayake na san za su fashe da kukan 'tak'.Sufaye a cikin tsakar gida an shirya su a cikin da'irori masu mahimmanci, wanda za a iya fahimta a kallo.A cikin natsuwa, tunanina yana son nuna wurin da ɗaiɗaikun sufaye suke waƙa a ƙarshen waɗannan da'irar.Lokacin da sufaye suka daina ihu, sautin yanayi a tsakar gida ya sa na gani na ji gabansu.Cartridges tare da wannan matakin basira ba wuya a wannan matakin farashin.
Duk lokacin da na buga "Biri Chant" tare da Dynavector 20X2 MC, Sutherland SUTZ, da SunValley SV EQ1616D duk matakin phono, na yi mamaki da mamaki saboda tsantsar haske, saurin walƙiya, da kuzari ba tare da jinkiri ba.masu wuce gona da iri suna faruwa tare da sauti masu ma'ana da kaifi tare da ganuwa tsakanin muryoyin mawaƙa.A gare ni, wannan sabon nau'in wow ne!Lokacin: SunValley Tubes sun inganta bayanan diski na yanzu da kyau.
Dynavector XX-2 MKII Chad Stelly ya yi farin ciki tare da ni a cikin rubutu game da "haɗin kai mai ban mamaki" na Dynavector XX-2 MKII kuzari tare da Sutherland SUTZ, don haka na tuntubi Mike a Toffco, Dynavector's US Distributor, Prank (babban bayanin kula 4), wanda ya tabbatar. Lura da Chadi cewa $2,150 XX-2 MKII tabbas shine "tabo na zinariya" a cikin layin Dynavector cartridge.Wannan shine lokaci mafi ban sha'awa ga Dynavector.
Har yanzu ina sha'awar harsashi na Dynavector saboda iƙirarin da suke yi na cewa suna mai da hankali kan shirin injiniya kan tushen matsalar: ƙirar maganadisu.Gidan yanar gizon su ya yi bayanin: “Kididdigar mu da gwaje-gwajenmu sun nuna cewa ko da ƙananan sauye-sauye a cikin motsi na iya haifar da canje-canje a cikin ƙarfin maganadisu a cikin tazarar iska, ta haka yana shafar karkatar da siginar fitarwa.”5 maganadisu maimakon samarium-cobalt ko neodymium-boron.Dalilin da aka bayyana na Dynavector's ƙwaƙƙwaran haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin ruwa na Dynavector da “filin maganadisu mai laushi” shine don rage girman “haɓakar maganadisu mara so”.
A cewar gidan yanar gizon Dynavector, XX-2 MKII yana amfani da Magnetic Alnico 5 (labari na 5) yayin da suke da babban ƙarfin maganadisu wanda, idan aka kwatanta da sauran nau'ikan maganadisu, "yana samar da ingantaccen filin maganadisu kuma don haka yana kiyaye ingantaccen fitarwa. irin ƙarfin lantarki"..
XX-2 MKII yana da ƙananan juriya na ciki (6 ohm) da ƙananan ƙarfin fitarwa na 0.28 mV.Motar sa tana cikin katafaren gidaje 7075 na aluminum kuma harsashi yana auna gram 9.2.An ƙayyade yarda a 10 µm/mN kuma Dynavector yana ba da shawarar ƙaramin kaya (30 ohms).
20X2 yana amfani da buɗaɗɗen MicroRidge stylus akan ƙwanƙolin bututu mai dural, yayin da XX-2, harsashi mafi arha a cikin layin Dynavector, yana amfani da madaidaicin boron cantilever tare da stylus na Pathfinder tare da layin layin 7 × 30 µm akan tip.Idan na tuna daidai, wannan shine lu'u-lu'u na Ogura da Lyra da Koetsu suka yi amfani da su.
Ƙafa ta 3: Ƙididdigar fasaha ta hanyar fasaha ta hanyar phono mai wucewa ba ta da wahala: iri ɗaya ne kamar yadda aka saba, rabon wutar lantarki zuwa shigar da wutar lantarki ko fitarwa na yanzu don shigar da halin yanzu - zaɓi ɗaya daga cikinsu.Amma wannan ba shine adadin sha'awar matakin wayar da ake shigar yanzu ba, wanda aikinsa shine canza halin yanzu zuwa wutar lantarki.Don irin wannan na'urar, kwatankwacin matakin na'ura mai canzawa ba zai yuwu ba, wanda shine dalilin da ya sa Ron Sutherland ya yanke shawarar kiran wannan samfurin SUTZ: ana iya la'akari da sabon nau'in na'ura mai canzawa, koda kuwa ba mai canzawa bane a cikin saba. hankali.Me yasa Z a karshen?Watakila saboda hanyar halitta don siffanta na'urar transimpedance ita ce rabon ƙarfin fitarwa zuwa shigar da halin yanzu, wanda ke da raka'a na impedance, yawanci harafin Z. - Jim Austin Jun 30 '11 a 12:01
Ƙafafun 4: Dynavector Systems Ltd., 3-2-7 Higashi-Kanda Chiyoda-ku Tokyo 101-0031 Japan.Waya: +81 (0) 3-3861-4341.Yanar Gizo: www.dynavector.com Mai Rarraba Amurka: Toffco, 2020 Washington Ave., Unit 314, St. Louis, MO 63103. Waya: (314) 454-9966.URL: dynavector-usa.com
Ƙafa ta 5: Lambobin da ke bayan “Alnico” suna nuni zuwa ga gami na musamman na aluminium, nickel, cobalt, jan karfe da ƙarfe.Alnico 5 yana da wadata musamman a cikin cobalt kuma ɗan ƙaramin maganadisu fiye da sauran Alnico gami.Ko yaya lamarin yake, gitatan wutar lantarki tare da tushen Alnico 5 suna da mafi tsaftataccen wucewa da sauti mai haske.- Jim Austin
$3,800 don matakin phono mai inganci, wanda ya fi ƙimar $89,000 mai ban mamaki don matakin CH Precision P1 phono da aka bita a makon da ya gabata.Kuma wannan "zai iya" sauti mafi kyau ga farashin 24.
Ina so in fahimci yadda matakin phono na transimpedance zai iya yin sauti a buɗe da iska lokacin da aka ɗora shi da irin wannan ƙaramin ma'auni.Shekaru na gogewa tare da matakan phono na gargajiya sun koya mani cewa rashin yin lodin da bai dace ba na iya kashe sautin harsashi.Me yasa wannan baya faruwa tare da matakan phono transimpedance?
Ka yi la'akari da shi kamar ƙananan lasifikan impedance suna aiki, suna zana / jawo ƙarin halin yanzu daga amplifier, bari mu fuskance shi, masu sauƙin fitar da masu magana suna da haske a launi fiye da ƙananan lasifikan impedance.
Mun ɗora Supex SD900 tare da 1000 ohm, 500 ohm, 100 ohm, 50 ohm da 10 ohm, mafi tsabta kuma mafi kyawun sautin damping yana a 10 ohm, amma kuna buƙatar riba mafi girma kuma "zai iya zama" mafi girma idan an tsara shi ba daidai ba.
Lokacin aikawa: Maris 11-2023