Tus Charger qub? Tsis yog, Nws yog RealTube18 All-Tube Guitar Headphone Amp thiab Pedal: 8 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:24

ZOO SIAB:

Yuav ua dab tsi thaum muaj kev kis thoob qhov txhia chaw, nrog lub roj teeb Nickel-Cadmium uas tsis muaj hnub nyoog, thiab 60+ xyoo tsis siv lub tsheb xov tooj cua lub tshuab nqus tsev zaum ib puag ncig xav tau los ua dua tshiab? Yuav ua li cas txog kev tsim thiab tsim lub raj-nkaus xwb, qhov hluav taws xob tsawg, cov cuab yeej siv roj teeb ua lub guitar lub mloog pob ntseg amp thiab lub suab tsis sib xws? Kuv muaj qee lub sijhawm thiab ntau qhov seem, yog li kuv kuj tau tsim ib qho hauv Milwaukee cov cuab yeej tuag lithium ion roj teeb them. Cov no yog cov nqi zog e-recycle cov haujlwm.

Ua ntej kuv nkag mus rau hauv cov txiv ntoo thiab ntsia liaj qhov rooj ntawm qhov kev tsim no, Kuv paub tias cov neeg nyeem qhov no yuav suav txij ntawm cov neeg tshiab mus rau kev paub dhau los hauv kev xav tau thiab kev paub dhau los. Qhov no yog hnub nyoog internet (nrog rau pawg txuas ntawm qhov kawg), Kuv yuav tsis ua piv txwv tias tuaj yeem piav qhia ntxiv nrog rau cov vev xaib thev naus laus zis li cas cov raj ua haujlwm, kev tshawb xav hluav taws xob, roj teeb ua haujlwm li cas, cov roj teeb sib txawv li cas, yuav ntsuas li cas raj siv hluav taws xob nrog oscilloscopes, siv cov cuab yeej siv hluav taws xob, yuav ua li cas thiaj li txuas tau, thiab lwm yam. 120 xyoo ntawm kev tsim hluav taws xob ntau dhau dhau rau kawm rau ib tus neeg lawm. Thaum kawg, Kuv tab tom sau kuv cov txheej txheem kev xav ntawm no, yog li koj tuaj yeem pom tias kuv mus txog qhov kuv xaiv li cas, vam tias koj yuav zoo siab rau kev hloov kho tus qauv.

Ntau qhov kev xav tau los rau hauv lub siab thaum kuv tsim lub RealTube18 lub mloog pob ntseg amp thiab lub tshuab ntaus guitar. Cov khoom kawg tau ua kom muaj kev nyab xeeb (20 volts dc max) thiab txoj hauv kev yooj yim rau kev sim nrog lub tshuab nqus tsev nqus hluav taws xob, thiab rau pob khoom zoo li kuv, tus nqi qis heev vim txhua qhov khoom kuv tau socked.

Khoom siv:

Cawm cov cuab yeej qub roj teeb.

Pom cov raj nqus kom tsim nyog uas ib tus neeg ua tau zoo tsis txhob muab pov tseg 60 xyoo dhau los.

Cov khoom tiv thaiv sib txawv, cov khoom siv hluav taws xob, qhov (socket), xaim, jacks, thiab lub zog loj.

Koj yuav xav tau ntau yam cuab yeej, suav nrog los ntawm kev xyaum thiab cov cuab yeej siv tes mus rau cov hlau txuas, khob cij, digital multimeter, thiab tsis txhob hnov qab lub roj teeb uas yuav haum rau lub qub charger lub roj teeb.

Kauj Ruam 1: Kuv Yuav Xaiv Li Cas Lub Tshuab Roj Teeb Rov Los Yuav Ua

Kuv xav tau qhov yooj yim raj amp tsim, tsis muaj lossis ob peb lub transistors lossis cov khoom siv sib txuas, thiab tseem muaj ob peb yam ntxiv. Thaum kawg, tsuas yog cov khoom siv hluav taws xob hauv qhov tsim qauv zaum kawg yog lub zog thiab cov nyhuv LED.

Kuv xav kom qhov no yog qhov hluav taws xob qis, khiav tawm lub cuab yeej roj teeb, muaj kev nyab xeeb rau lub rooj noj mov nrog cov xov hluav taws xob, tsis muaj cov kab hluav taws xob lossis cov phaj hloov pauv hluav taws xob xav tau. Kev ntsuas hluav taws xob tsawg tsawg yog ib txoj hauv kev nyab xeeb kom kawm tau cov raj hluav taws xob, thiab, tso cai rau kev hloov pauv sai yam tsis muaj qhov sib txuas (kom txog rau thaum kawg tsim). (Lus ceeb toom: cov raj tseem kub dhau los kov.) Kuv yuav ob peb tus pin 9-pin lub qhov (socket) adapters online uas ntsaws ncaj qha rau hauv lub khob cij. Cov hluav taws xob qis (ntsuas tsawg kawg 25v) cov khoom siv hluav taws xob hluav taws xob tsis kim thiab me me, tsis zoo li 400 lossis 600 volt-kwvtij txheeb ze xav tau hauv cov khoom siv hluav taws xob ntawm cov raj hluav taws xob siab.

Kuv xav tau xoom ac hluav taws xob nrov: los ntawm kev ua kom ncaj qha tam sim no los ntawm lub roj teeb, tsuas yog AC cuam tshuam nrog yog lub teeb liab nws tus kheej.

Lub raj suab: Kuv tab tom tsim qhov no los tsim qhov tseeb raj sib dhos tsis sib xws rau guitar. Kuv txaus siab txaus siab rau qhov tshwm sim. Cov amp no ua haujlwm nyob rau hauv txoj kab, tsis muaj kev cuam tshuam nrog cov suab paj nruag ntim pob qhov rooj qis thiab tsav tswj qis. Nyob ntawm kev khaws cov guitar, qhov tsis sib xws tuaj yeem mus rau qhov zoo nkauj sai sai. Cov neeg uas paub zoo txog raj guitar amps yuav tsis xav tsis thoob tias kuv qhov kev xaiv ib leeg-tetrode yuav tsis muaj lub suab zoo ib yam li ib qho nrog lub nqaj fais fab raj, lossis tsis sib haum xeeb ntawm lub zog-rub lub zog theem. Tseem, Kuv nyiam cov txiaj ntsig rau qhov haujlwm no.

Tus nqi pheej yig: Kuv xav siv ntau yam khoom los ntawm kuv lub thawv ntim khoom kom ntau li ntau tau. Kuv lees txim Kuv tau ua haujlwm ntau qhov siv, txawm tias cov khoom siv hluav taws xob. Yog tias koj tab tom tsim kom ntev, ib zaug koj tau txiav txim siab ntawm koj tus qauv tsim thiab zoo siab nrog lub khob cij, kuv hais qhia qhov tshiab, cov khoom siv hluav taws xob zoo-zoo koj lub neej yav tom ntej yuav zoo siab tsis hloov cov khoom siv hluav taws xob hauv 5 txog 10 xyoo.

Kauj Ruam 2: Xaiv Qhov Tsawg Voltage Lub Tshuab Nqus Tsev

Txhawm rau kom ua tiav qhov hluav taws xob qis, qhov tseeb "raj suab", Kuv txiav txim siab siv lub raj hluav taws xob qis uas tsim los rau kev siv xov tooj cua hauv tsheb txij xyoo 1955 txog 1962. Muaj ob pawg ntawm cov hlab hluav taws xob qis: "chaw them nqi" thiab cov pa. Qhov chaw them nqi hom pib siv qhov ntxiv tam sim no ntws los ntawm lub raj kom ua raws li cov khoom siv hluav taws xob zoo ib yam nrog cov phaj ua haujlwm siab dua. Kuv ua tau zoo nrog ib yam twg, tab sis hom hluav taws xob qis qis tsis xav tau qhov tam sim no ntxiv uas qhov chaw them nqi hom ua.

Cov raj hluav taws xob qis no tau tsim vim tias lub zog hluav taws xob qis transistor nyuam qhuav tau tsim tiav, tab sis cov transistors muaj cov zaus ntau tseem tsis tau muaj. Cov tuam txhab tsim tsheb hauv xov tooj cua tau nrhiav kev daws teeb meem rau kev ua haujlwm ntawm 12volts, kom tshem tawm qhov xav tau los ua kom muaj hluav taws xob siab rau cov raj nqus dej. Nws tsis siv sijhawm ntev, txawm li cas los xij, ua ntej tag nrho cov raj tau dhau los ua qhov qub, thiab cov raj hluav taws xob qis lub tshuab hluav taws xob muaj nyob tsuas yog luv luv. Thaum cov kab tsheb loj no tau tsim los txhawm rau txhawm rau nruj ntawm txoj kev tsis sib xws, lawv tsis muaj lub voj voog tsim lub neej txhawm rau txhim kho kev ua haujlwm zoo li tshem tawm microphonics. Nrog lub ntim nce, piv txwv li, koj tuaj yeem coj mus rhaub lub rooj tsav xwm hauv Circuit Court thiab hnov nws hauv lub mloog pob ntseg.

Kuv ib leeg-lub mloog pob ntseg amp/guitar pedal yuav xav tau ob lossis txawm peb lub sijhawm kom tau txais lub zog tsav txaus, thiab tom qab ntawd ib lub zog tetrode lossis pentode los tsav lub mloog pob ntseg.

Muaj cov raj: cov raj hluav taws xob tsawg tsis tau tsim tawm, yog li Cov Qub Qub Tshiab yuav yog qhov kev xaiv nkaus xwb. kaw kev lag luam. Cov hlab kuv xaiv sawv cev rau ob pawg rau cov raj hnub no. 12U7 nrov nrog guitar raj pedal crafters yog li tus nqi nce. Qhov sib txawv, 12J8 yog siv los ntawm cov neeg ua haujlwm tsawg heev yog li tus nqi qis heev. Zoo siab, ntawm cov hluav taws xob qis no, lub raj xa hluav taws xob tau qis heev kom cov raj siv sijhawm ntev heev.

Lub raj rhaub hluav taws xob filament yog lo. Kuv xav siv 18-20volt cov cuab yeej roj teeb thiab tsis nkim nyiaj/qhov chaw/lub zog ntawm cov cua sov cais lub tshuab hluav taws xob hluav taws xob. Kuv tau teeb tsa kom pom lub raj sib xyaw ua ke uas tso cai cov filaments tso rau hauv kab thiab/lossis ua haujlwm sib luag los ua haujlwm nyob rau hauv cov tuam txhab ua siab ntev ntawm tag nrho ntawm 18 txog 20 volts. Kev sib tham ntau ntxiv txog qhov kev npaj yeej tom qab.

Hom raj: Kuv xav tau ntxaib triode pre-amp pub mis rau hauv tetrode lossis pentode fais fab amp, rau kev ua haujlwm ib leeg-qib Class A. Qhov thib peb triode tuaj yeem ua haujlwm yog tias kuv xav tau qhov nce, tab sis kuv tsis xav tau qhov nce ntxiv, yog li tetrode/triode combo tube tsis tsim nyog, tsuas yog tetrode.

Cov npe ntawm ob lub triode, Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob yog luv heev. Tsis muaj cov raj no muaj tseeb "qhov chaw them" hom, vim tias cov txheej txheem no tau siv los tso cai rau ntau dua tam sim no ntws hauv lub raj tso tawm hluav taws xob tsis zoo li lub raj hluav taws xob nce.

Pom cov duab ntawm qhov hluav taws xob qis, ob lub raj triode. Kuv tsis paub meej tias cov duab no yuav upload tau zoo npaum li cas, yog li kev daws teeb meem yuav ua rau cov nyeem nyuaj.

Rau lub zog tetrode, 12J8, 12DK7, thiab 12EM6 txhua tus muaj lub hwj chim tsim nyog. Lub raj 12J8 muaj lub zog tso zis ntau tshaj plaws ntawm hom uas tsis siv qhov chaw, thiab, muaj 0.325 amp rhaub tam sim no ntawm 12 volts.

Saib daim duab ntawm cov hluav taws xob qis tetrode hlab.

Kuv tab tom nrhiav ob lub raj triode uas tuaj yeem ua haujlwm nrog 12J8's 0.325 amp tam sim no. Raws li txoj hmoo yuav muaj nws, 12U7 raj muaj 0.3 amp rhaub tam sim no ntawm 6 volts, thaum siv lub rhaub centertap.

Yog li, ib lub tshuab hluav taws xob 12J8 ntawm 12.6 volts hauv ib qho nrog 12U7 hauv kev sib cais-filament teeb tsa ntawm 6.3volts xav tau 12.6+6.3 = 18.9 volts tag nrho rau cov cua sov, sab xis 0.3 amps. Lub roj teeb cuab yeej 18 txog 20 volt yog qhov sib tw zoo tshaj plaws rau kev sib xyaw ua ke no. Tshawb nrhiav hauv internet rau "raj ntaub ntawv" kom pom cov tuam txhab ua siab ntev rau kev ua haujlwm tsis ntawm cov raj uas koj txaus siab rau. Hauv kev sim, kuv pom tias lub roj teeb tau them tag nrho ntawm 20 volts ua rau cov kab no ua rau 11.8 volts rau 12J8 thiab 7.2 volts rau qhov sib cais 12U7 rhaub (14.4 volts tsis-sib cais filament sib npaug) Cov txiaj ntsig no nyob hauv 10 txog 16.9 cov lus qhia tshwj xeeb rau cov raj no, thiab khiav ntawm.32 amps. Kuv tau txais hmoov zoo nrog qhov ua ke no.

Lwm qhov ntawv: 12U7 ntau dua lossis tsawg dua tshwj xeeb tau hloov kho 12AU7 raj. 12AU7 (European tus lej yog ECC82), tsim txoj hauv kev rov qab, yam tsawg kawg hauv xyoo 1946 thiab tej zaum ua ntej, tau hais rau kev ua haujlwm siab hluav taws xob, thiab tau rov tsim dua niaj hnub no, vim nws ua tau zoo suab pre-amp kev ua tau zoo.

Txhawm rau ua kom tiav, "Chaw Them Nqi" hom fais fab pentodes lossis tetrodes tsis muaj qhov sib haum tam sim no rau 0.3 amps ntawm kev faib ua haujlwm rhaub hluav taws xob ntawm 12U7. Thiab, tag nrho cov raj tam sim no kos yog siab dua vim qhov chaw them nqi daim phiaj. Yog li, 12J8 yog qhov kuv xaiv rau lub raj fais fab. Yog tias koj tab tom mus rau lwm txoj hauv kev, tom qab ntawv cov phaj siab dua yuav zoo rau koj. Saib daim duab ntawm "chaw them nqi" lub raj fais fab uas tau tsim, rau kev siv ntxiv.

Yog li, rau kuv txoj haujlwm, qhov sib tw zoo tshaj yog 12U7-12J8 khub. 12J8 tau ntsuas rau 20 mW lub zog tso zis, uas yog qhov thib ob tsuas yog rau 12K5 ntawm 40mW. Tab sis, txij li cov phaj hluav taws xob yuav yog 18 txog 20 volts, hloov ntawm 12.6 volts, lub zog tso tawm yuav siab dua me ntsis, nrog kuv ntsuas qhov ntsuas ib puag ncig 40 mW-kuv lub zog tiag tiag tso tawm tau siab dua qhov no, tab sis kev cuam tshuam tau zoo heev. Nco ntsoov tias qee lub raj cov ntxaij vab tshaus thiab daim hlau muaj 16 volt qhov ntsuas siab tshaj plaws, tab sis feem ntau yog ntsuas ntawm 30 volts-12U7 thiab 12J8 ob qho tib si raug ntsuas rau 30 volts.

Yooj yim, hloov qhov ib leeg-kawg 12J8 theem hluav taws xob nrog rub-rub khub ntawm 12J8's nrog 12U7 theem splitter, yuav ua rau ob qho 12U7 thiab ob qho 12J8 tag nrho-lub ntsiab lus cua sov tseem yuav ua haujlwm tau raws li ib qho sib cais filament 12U7 hauv ib qho nrog 12J8, tsuas yog ob zaug. Yog li, qhov rub-rub version ntawm lub tshuab hluav taws xob no tsuas yog ua tau raws li kuv qhov kev txwv. Kuv yuav tsim qhov rub-rub version ntawm qee kis.

Cov ntawv ceeb toom sai ntawm cov raj raj: rau Cov Khoom Qub Tshiab (ua ntej xyoo 1980, hauv paus), cov npe sib txawv me ntsis ntawm qhov zoo, tab sis rau cov raj no, Kuv tsis tau pom qhov pom tau (rau kuv) qhov sib txawv hauv kev ua tau zoo. Txawm hais tias RCA, Sylvania, GE, thiab lwm yam lossis, rov tsim cov raj nrog lub tsheb tsim lub npe ntawm lawv (FoMoCo, GM, thiab lwm yam), lawv txhua tus yuav tsum ua tau zoo ib yam, txawm hais tias lawv tsis nyob twj ywm ntev txaus kom tau txais qhov zoo.

Kauj Ruam 3: Xaiv Amp Qhov Nkag Mus

Kuv xav siv lub thaiv uas twb muaj lub roj teeb sib txuas rau hom roj teeb uas xav tau thiab tuaj yeem siv tau raws li lub tshuab ntaus guitar.

Txog rau Ryobi version, Kuv tau siv lub tshuab Ni-Cd tso tseg uas tau muab faus rau hauv lub nkas-las, tos rau kev rov siv e-recycle. Tom qab tshem qhov tsis tsim nyog sab hauv (lub hom phiaj yuav rov ua dua tshiab rau hauv dc lub zog xa khoom hauv lwm qhov haujlwm), qhov chaw txaus nyob twj ywm txhawm rau tsim cov khoom tsim nyog. Nov yog qhov siv tau yooj yim heev rau cov roj Ni-Cd uas tsis siv lawm.

Ib yam li ntawd, rau Milwaukee M18 version, Kuv yuav lub charger tsis tau hauv online thiab ua rau lub qhov rooj kaw. Ntxiv cov kauj ruam ntawm no: lub charger kuv siv tsis muaj lub roj teeb zoo lub davhlau ya nyob twg hauv txoj haujlwm raug, yog li ua tib zoo txiav thiab epoxying ntawm lub davhlau ya nyob twg hauv txoj haujlwm raug. Qhov no yog vim tias M18 lub charger yog rau lub roj teeb lithium ion, thiab xav tau kev them nyiaj tshwj xeeb txuas.

Thaum tso tawm cov khoom sib dhos thiab cov qhov drilling, kev ua siab ntev yog qhov tsim txiaj. Nrog yas, maj mam maj mam kom tsis txhob tawg lossis qhov chaw tsis raug. Thiab npog feem ntau ntawm rooj plaub nrog daim kab xev npog: qhov no tso cai rau koj kos rau qhov drilling, thiab tiv thaiv rooj plaub los ntawm khawb ntau dua. Siv sijhawm xav txog qhov chaw ntawm txhua qhov khoom ua ntej koj ua qhov. Kev tshem tawm ntawm cov khoom tsis tuaj yeem hloov pauv tau zoo thaum lawv tau teeb tsa.

Txhawm rau laum rau cov raj, Kuv tau siv lub forstner me ntsis thiab ib qho ntawm cov ntoo ua ntej tho cov ntoo ua cov lus qhia, kaw rau hauv lub thawv. Lub qhov pom tej zaum yuav ua haujlwm zoo dua.

Txhawm rau rov ua lub hom phiaj ntawm txhua lub qhov rooj, koj yuav xav tau tus lej ncaj ncees ntawm cov cuab yeej. Yog tias koj tsuas yog tau txais kev paub ua cov khoom zoo li no, kuv hais qhia xyaum ua ntawm cov ntaub ntawv pov tseg ua ntej-zoo dua, yog tias koj tuaj yeem tau txais ob lub thawv qub qub, tom qab ntawd koj tuaj yeem rov qab tau yog tias rooj plaub tawg lossis koj tsis kam tsis nyiam koj qhov kev tso kawm.

Kauj Ruam 4: Xaiv Cheebtsam

Cov neeg tiv taus: Kuv tau sau zillion resistors ntau xyoo, ntau ntawm lawv yog cov muaj pes tsawg leeg. Niaj hnub no, Kuv yuav tsis pom zoo kom muaj cov pa roj carbon sib xyaw vim ntseeg tau. Kuv siv yam kuv muaj ntawm tes, txawm hais tias. Txawm hais tias qhov no yog txhua qhov hluav taws xob qis, koj yuav tsis tuaj yeem siv me me 1/8 watt resistors nyob txhua qhov chaw-ua lej kom paub tseeb tias koj tsis kib ib tus tiv thaiv (lub zog tawm = tam sim no^2*tsis kam).

Capacitors: txij li qhov no qis dua 25volts, txhua qhov hluav taws xob tuaj yeem ntsuas tau rau 25 volts, qee qhov qis dua. Yog li, cov no tsis kim piv rau cov capacitors kuv siv hauv amps nrog 350volts B+. Lub khawm txuas, nrog cov siab megohm daim phiaj resistors, tuaj yeem me dua 0.022 thiab 0.1 uF. Txawm li cas los xij, Kuv muaj pawg ntawm txhua tus nqi uas tau ntsuas ntawm 100v, yog li kuv siv lawv. Yog tias koj yuav yuav ib lub hnab ntawm lawv rau hom phiaj xwm no, kuv hais qhia pob ntawm kaum 0.05uF 100V ntsuas, lossis 0.1uF yog tias lub suab tswj xav tau nws-lossis ntau yam los sim. Lub khawm txuas feem ntau teeb tsa koj cov lus teb zaus txiav tawm.

Lub tshuab hluav taws xob tso tawm: Feem ntau, ntawm qhov hluav taws xob siab thiab dc tsis ua haujlwm tam sim no, lub suab tso tawm hloov pauv yog loj thiab hnyav-thiab muaj nqi. Txawm li cas los xij, Kuv tau siv 70 kab hluav taws xob kab hloov pauv, uas yog qhov zoo rau cov dc qis tam sim no. Cov no yog qhov hnyav thiab pheej yig. Yog tias koj muaj lub tshuab tsim hluav taws xob tsim nyog zaum hauv ib lub thawv, uas yuav tsum tau suab zoo dua, tab sis 70v hloov pauv yuav ua haujlwm. Muaj ntau cov lus qhia ntawm lub vas rau xaiv qhov kais dej raug rau koj txoj haujlwm, tab sis kuv xaiv 2W kais kom tau kwv yees li 2500 ohms load impedance qhia rau 12J8 cov zis.

Thauj khoom: Kuv tsim qhov no rau qhov sib npaug 16 ohm lub mloog pob ntseg/pob ntseg. Ob 16 ohm nyob ua ke yog 8 ohm, uas ua haujlwm zoo rau 70 volt kab hloov pauv 8 ohm tso zis. Tab sis, Kuv tau ntxiv 1 ohm resistor hauv koob rau lub mloog pob ntseg/dummy thauj khoom raws li qhov faib hluav taws xob, muab qhov qis guitar tso tawm. Qhov kev faib tawm no tau txiav txim siab sim, tsom rau lub suab nrov ua kom muaj qhov hluav taws xob uas zoo ib yam li qhov hluav taws xob nkag thaum hla dhau mus rau qhov tso tawm thaum lub tshuab hluav taws xob hloov mus.

Kauj Ruam 5: Tsim Kuv Li Circuit Court

Ib qho hluav taws xob hluav taws xob nyuaj yog tsim los ntawm ntau qhov, yooj yim dua Circuit Court. Ib daim duab ntawm kuv lub vev xaib raug tso tawm.

Kev ntaus suab paj nruag: Cov suab paj nruag tso tawm tam sim ntawd mus rau ib qho kawg ntawm thawj tus ncej ntawm ob-tus ncej-ob-pov tseg lub qhov rooj hloov pauv, thiab txuas ntxiv mus rau thawj triode theem cov khoom siv hluav taws xob. Ib lub raj xa hluav taws xob tso tawm txog 0.07vac teeb liab, thaum lub suab nrov tuaj yeem ncav cuag ib puag ncig 0.7 tawm.

Ua ntej-amp: Txhawm rau ua kom muaj zog tshaj qhov ua tau zoo, daim phiaj-xau tsis raug xaiv rau thawj triode ntawm 12U7. Kev sib txuas lub tshuab hluav taws xob xav tau rau kev ua haujlwm tsis sib xws. Lub tshuab hluav taws xob no tseem txo qis kev pheej hmoo thaum sim, ua rau nws tsis tuaj yeem txuas tsis raug los thim rov qab ib qho dc tam sim no rau hauv qhov ntsuas qhov ntsuas los yog nqa cov guitar. (Kuv yuav tsis xav hais tias yog vim li cas kuv taw tes rau qhov no …) Xijpeem, daim phiaj-xau resistor ib txwm ua haujlwm ntawm lub hauv paus ntsiab lus uas huab ntawm cov hluav taws xob nyob hauv thaj tsam ntawm cov cathode kub (dab tsi yog tiag tiag "qhov chaw them nqi" huab) yuav muab me me hluav taws xob ntws los ntawm tus tiv thaiv txuas nrog rau cathode lossis txuas nrog B+ khoom siv. Kev sim, 5 megohm resistor txuas nrog B+ suab zoo tshaj rau kuv, thiab muab kwv yees li -.5 volt bias (xau tam sim no tuaj yeem mus txog ntau txog 10uA ib daim ntawv). Nrog lub humbucker nqa ntawm 0.7vac, -0.5v kev tsis ncaj ncees yog qhov chaw zoo nkauj los ua haujlwm. Kev sim nrog qhov sib txawv ntawm 2 txog 10 megohm kom hnov qhov sib txawv, thiab pom nws ntawm oscilloscope. (Lub oscilloscope zoo nkauj tshwj xeeb, tab sis muaj txiaj ntsig tiag tiag yog tias koj xav sim nrog kev tsim qauv.)

Cov ntawv ceeb toom txog cov cim roj teeb: lub npe “A,” “B,” thiab “C” rau cov roj teeb xov tooj cua tau tsim muaj ntau tshaj 100 xyoo dhau los. Txij li thaum kuv tsim tsis xav tau qhov sib txawv hluav taws xob rau cov cua sov, tsis muaj "A" roj teeb hauv qhov tsim qauv no. Txhua yam ua haujlwm los ntawm cov phaj hluav taws xob, piv txwv li "B" roj teeb, yog li tsis muaj "A+" txuas. Tsis tas li ntawd, Kuv tab tom txiav txim siab qhov sib txuas nrog cov neeg tawm tsam, yog li tsis muaj "C" roj teeb.

Lub suab thib ob: Nov yog qhov thib ob triode ntawm 12U7, pub los ntawm kev tso tawm ntawm thawj theem. Cov theem no yog cathode-biased nrog kev hla dhau 10K lub zog txaus. Lub lauj kaub no yog qhov kuv siv los ua "tsav" kev tswj hwm, txhawm rau txhawm rau txhawm rau ua kom muaj zog ntxiv ntawm theem ob no, uas yuav txo qis qib ntawm cov suab paj nruag uas xav tau kom ua rau muaj qhov cuam tshuam. Nco tseg, nrog qhov tsim qauv no, yog tias koj khawb mus rau hauv tus neeg txaj muag nrog lub suab nrov ntawm lub pob qhov rooj nce, txhua theem ua kom nrov thiab suab, zoo, tsis zoo, vim tias tag nrho peb theem yog qhov cuam tshuam. Tab sis, thaum koj sim ntawm qhov ntim ntawm guitar, teeb tsa amp, thiab qib ntim ntim, muaj ntau lub suab nrov kom pom. Qhov no tsis zoo li 6V6 raj rau kuv pob ntseg, tab sis kev lom zem txawm li cas los xij. Rau kev siv ua tus pedal, Kev Siv Tau Txais Kev Tswj Hluav Taws Xob yuav zoo, tab sis kuv tsis xav tias lub siab xav tam sim no.

Lub suab tswj yog nyob ntawm yeem. Thiab, koj tuaj yeem sim nrog txhua lub suab pawg koj xav tau. Nco ntsoov tias qee lub suab tswj kev teeb tsa tuaj yeem ua rau koj lub teeb liab sib txuas zoo heev.

Fais fab theem: 12J8 muaj ob lub diodes uas kuv tsis tau siv. Cov no tau txhais los txhawm rau txheeb xyuas (qhib hauv) cov cim xov tooj cua thiab tom qab ntawd ua kom lawv txaus los tsav lub zog tshiab (hloov tshiab tam sim no). Kuv khi cov diode sib koom cathode thiab anodes rau hauv av (- ntawm roj teeb), yog li ntawd lawv yuav tsum yog qhov tseem ceeb. Kev xav, ib tus tuaj yeem hloov kho lub peev xwm ntawm ntu tetrode thiab diodes los ntawm kev hloov pauv lub peev xwm, tab sis lwm tus tuaj yeem sim nrog qhov ntawd …

Cov teeb liab tso tawm ua ntej mus rau lub mloog pob ntseg, thiab tom qab ntawd rov qab mus rau lub rooj tsav xwm hauv Circuit Court 1ohm resistor kom tshem tawm cov teeb liab tawm ntawm tus pedal. Yog li, nws yog ib qho tseem ceeb uas yuav tsum tau siv lub mloog pob ntseg zoo li no, uas muaj kev cuam tshuam kev sib txuas uas tso cai rau onboard 16 ohm load resistors los ua lub nra rau lub raj fais fab yog tias lub mloog pob ntseg tsis ntsaws.

Lub vijtsam tetrode txuas nrog tib B+ fais fab mov ntaiv node raws li B+ rau thawj ob theem- Kuv tau sim nrog txiav cov no (12U7 B+ los ntawm 12J8 npo), tab sis kuv tsis pom muaj txiaj ntsig ntawm qhov muaj txiaj ntsig. Koj yuav xav txiav cov no nrog 200 ohm resistors hauv B+ tus ntaiv thiab ntxiv 25uF ntawm txhua qhov ntawm.

Cov khoom siv hluav taws xob muab hluav taws xob: B+ lub zog siv hluav taws xob pub rau 12J8 muaj 100uF capacitor, uas yog overkill, tab sis kuv muaj lub kaus mom zaum ib puag ncig. Tus so ntawm lub hwj huam mov ntaiv ntaiv tuaj yeem yog 22uF lossis 47uF. Cov kaus mom no tsis nyob ntawm no rau 60Hz suab nrov lim, tsuas yog teb. Kev muaj peev xwm qis dua hauv cov khoom siv hluav taws xob tuaj yeem ua rau koj me ntsis ntawm "sag" nco txog lub raj kho qhov amps-Kuv tsis tau sim nrog qhov ntawd.

Kuv tau siv tus ncej thib ob ntawm lub qhov rooj hloov mus rau xa B+ rau ob lub raj hlau lossis "hla" LED (tsis feem ntau ua tiav ntawm tus qauv ntaus kis las, tab sis Ryobi them nyiaj muaj lub thib peb LED). Cov cua sov thiab "lub zog" LED tau khiav ncaj qha los ntawm lub zog tseem ceeb hloov kev sib cuag. Tsis muaj qhov txiaj ntsig tiag tiag los tshem lub zog los ntawm daim hlau thaum cov txiaj ntsig tau hla dhau, txij li qhov hloov pauv "tos" tsuas yog txhais tau tias yog siv thaum pib ua kom sov ntawm cov hlab hluav taws xob siab, tab sis kuv tab tom nrhiav kom txo roj teeb-ntws txhua txoj kev kuv ua tau. Cov raj siv 25 vib nas this kom hnov suab zoo ib yam, yog li kuv tsis xav hloov cov uas nrog lub qhov rooj hloov. Tseem, qhov kev tsim qauv ib leeg no tsuas yog thim ib feem peb ntawm lub amp, yog li 4-amp-teev roj teeb lub tswv yim tuaj yeem tsav qhov no rau 12 teev. Kuv yeej tau khiav ntau teev nyob rau hauv kev sim ua ntej kuv xav tau kom rov roj teeb.

Hauv kev xav, kuv yuav tsum tau tso lub fuse sab xis ntawm B+ lub davhlau ya nyob twg. Qhov no yuav txo txoj hauv kev muaj hluav taws thaum muaj qee yam teeb meem uas tsis tau pom dua hauv lub thawv. Kuv pom zoo kom koj fuse txhua yam koj tsim, vim tias cov roj teeb tuaj yeem tso ntau qhov tam sim no rau hauv Circuit Court.

Kuv siv daim ntawv, kev paub dhau los, khoos phis tawj spreadsheet, multimeter, thiab oscilloscope los tsim thiab kho kom haum kuv tus qauv. Rau cov txuj lom simulation devotees tawm muaj, muaj qhov txiaj ntsig zoo kawg rau kev sim, zoo, txhua yam kev sib tw ntawm lub khoos phis tawj. Kuv nkag siab, txawm li cas los xij, cov raj tsis yooj yim rau ua qauv zoo (tshwj xeeb tshaj yog nyob rau qhov hluav taws xob qis nrog kab sib chaws-xau tsis ncaj ncees), yog li thaum koj mus txog qhov sib dhos ua ke tiag tiag, tsis txhob poob siab ntau yog tias tus cwj pwm ntawm Circuit sib txawv me ntsis los ntawm qhov simulation. Kuv yuav tsum xav tias qhov kev xav ntawm cov cathode rhaub tso cov hluav taws xob mus rau qhov them "huab" uas tawm hauv qhov kev taw qhia ntawm daim phiaj, tshuaj ntsuam, thiab phaj yuav tsum nyuaj heev rau qauv-tshwj xeeb tshaj yog rau cov raj zoo li 12J8 uas tsis nyob ib puag ncig ntev txaus rau leej twg los tshaj tawm cov ntaub ntawv nkhaus ua haujlwm.

Kauj Ruam 6: Ua Koj Tus Kheej Tsim

Kuv tau tshaj tawm cov duab ntawm ob theem tsim ntawm ob qho amps. Kuv kaw ob peb guitar chords ntawm plaub qhov sib txawv los muab lub tswv yim ntawm lub suab nrov.

Kuv tus qauv ntawm no tsuas yog lub tswv yim los qhia koj tias koj tuaj yeem xaiv koj tus kheej lub hom phiaj, koj tus kheej raj, koj tus kheej daim ntawv, thiab tsim nws ntawm kev nyab xeeb hluav taws xob kom paub txog cov raj. Koj tuaj yeem ntxiv qhov pheej yig, roj teeb ua haujlwm sib txuas hluav taws xob lub zog hluav taws xob thiab tus hais lus los ua kom muaj qhov sib xyaw amp. Koj tuaj yeem ua qhov tseeb thawb-rub lub raj lossis cov transistor amp. Koj tuaj yeem siv DC qhov sib txawv thiab khiav cov raj no ntawm 30 volts kom tau txais lub zog ntau dua. Koj tuaj yeem siv hluav taws xob ac-rau-dc hloov lub roj teeb. Koj tuaj yeem tsis ncaj ncees hauv txoj cai tswj hwm txoj haujlwm nkaus xwb thiab ua lub mloog pob ntseg lub mloog pob ntseg amp. Qhov sib txawv ntawm cov nyom tuaj yeem ua rau hauv. Qhov no tuaj yeem ntim rau hauv 19-inch rackmount version. Mus rau nws. So kom yooj yim paub tias txhua yam koj xav zoo li sim yog qhov siv tau raws li lwm tus neeg lub tswv yim.

Kuv cov lus ceeb toom ceeb toom nkaus xwb yog rau cov ntawm koj uas yog tus tshiab rau cov ncauj lus no. Ua cov kauj ruam me me kom tsis txhob poob siab. Tau txais daim ntawv qhia zaub mov thiab lub hwj huam mov thiab pib kawm paub yuav ua li cas Circuit Court ua haujlwm. Ua haujlwm nrog ib lub raj lossis ib lub transistor thiab saib nws ua haujlwm li cas, ua ntej ntxiv qhov nyuaj. Ntawm qhov hluav taws xob qis, koj tseem tuaj yeem haus luam yeeb 25 ib xees transistor, tab sis koj yuav tsis ua rau lub raj puas tsuaj tshwj tsis yog tias koj mus deb tiag tiag, zoo li txuas B+ rau kev tswj kab sib chaws ntev. Ntxiv qhov nyuaj maj mam. Yog tias koj tuaj yeem tau txais digital multimeter, ua haujlwm tsim hluav taws xob (app hauv xov tooj) thiab oscilloscope (ob qho khoom siv zaum lossis app/program ntawm lub PC qub), tom qab ntawd koj yuav muaj txhua yam koj xav tau kawm ntau. Qhov kev paub no tuaj yeem ua rau koj nkag mus rau cov teeb liab digital, lossis hloov kho koj cov cuab yeej uas twb muaj lawm, lossis kho cov cuab yeej tawg.

Kauj Ruam 7: Kev lees paub

Kuv yuav tsis ua piv txwv kom tau tsim txhua yam ntawm cov tswv yim nthuav tawm ntawm no.

Yog tias koj tshawb nrhiav internet rau patents (2864026, 2946015, 3017507, 10063194, txhawm rau sau npe ob peb), lossis tshawb xyuas "sophtieamps" lossis "Frank cov raj loj sau cov ntawv sau" lossis "NJ7P lub raj phau ntawv qhia kev xav" lossis "tubetheory" lossis "antiqueradios" lossis "diyaudio" lossis "space charging tubes" lossis "angelfire" lossis "radiomuseum" lossis sau ntau txhiab ntawm lwm nplooj ntawv, koj yuav pom ntau guitar amps, guitar pedals, lub mloog pob ntseg amps, thiab dav raj qhia kev qhia uas pab txhawb rau kuv lub tsev, thiab koj li. Ua tsaug rau txhua tus tau los ua ntej, thiab zoo siab rau koj yav tom ntej cov neeg tsim khoom/rov ua dua tshiab.

Kauj Ruam 8: A (Zoo heev, Thov Txim) Hloov kho rau Qhov Kev Kawm Tiav lawm:

Hauv ob peb lub lis piam dhau los, Kuv tau ua ob qhov hloov pauv rau qhov tsim.

Ua ntej, txhawm rau ua kom zoo dua tetrode lub zog tso tawm thiab lub suab zoo, Kuv teeb lub vijtsam hluav taws xob ntawm 12.6 thiab 13.3 volts nrog qhov faib hluav taws xob. Kuv tau sim teeb tsa teeb tsa ntawm kwv yees li 3K resistor los ntawm B+ rau tshuaj ntsuam, thiab tom qab ntawd 10K resistor rau hauv av. Kuv hla dhau lub vijtsam rau cathode nrog 1 lossis 2 uF cap. Tej zaum koj yuav xav tau kho 3K siab dua, nyob ntawm koj qhov Circuit tiag los teeb tsa qhov ntsuas hluav taws xob no. Tam sim no tsawg dua 2mA dhau ntawm 3K. Lub vijtsam yog khi tam sim no-ntse rau cathode nrog 1uF bypass capacitor, txhawm rau tso saib lub vijtsam kom ua nws txoj haujlwm zoo dua li cov phaj thiab cathode voltages viav vias. Qhov ntsuas hluav taws xob ntsuas hluav taws xob no zoo li yog lub tsev zoo rau txhua qhov qis hluav taws xob tetrode, txhawm rau ua kom tau zoo tshaj plaws.

Qhov thib ob, Kuv pom tias Ryobi 18v lithium ion roj teeb tso tawm qee yam ntawm lub tshuab them nyiaj digital sib txuas lus thov txhua 15 vib nas this, ua rau lub suab "zuam". Nws yog qhov luv luv ac hla ntawm DC qhov hluav taws xob. Kuv ntxiv lub lim lim rau nws. Yog tias koj tuaj yeem tau txais qhov me me (1 lossis ntau dua mH) inductor, koj tuaj yeem ntxiv qhov ntawd mus rau lub zog fais fab lim lim. Kuv tsis pom qhov yuav tsum tau siv lub rhaub dej tam sim no los ntawm qhov inductor.

Daim ntawv kawg: 10K lub zog ntsuas yuav tsum yog qhov zoo, vim nws tuaj yeem pom ntau lub milliamps thiab txhua lub suab nrov tau tsim ncaj qha mus rau phaj thiab cuam tshuam rau lub suab.

Yog tias leej twg tsis xav pib lub raj nqus nqus sim ntawm qhov ntsuas hluav taws xob siab, thiab hloov qhov sim qee yam zoo li no, thov qhia rau kuv paub.

Ua tsaug rau kev nyeem ntawv.