Cov txheej txheem:

TR 808 Bass Nruas. Analog Suab!: 5 Kauj Ruam (nrog Duab)
TR 808 Bass Nruas. Analog Suab!: 5 Kauj Ruam (nrog Duab)

Video: TR 808 Bass Nruas. Analog Suab!: 5 Kauj Ruam (nrog Duab)

Video: TR 808 Bass Nruas. Analog Suab!: 5 Kauj Ruam (nrog Duab)
Video: 16 Legendary Beats - A short history of the 808 🟥🟧🟨⬜ | Drum Patterns Explained 2024, Hlis ntuj nqeg
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Txog Circuit Court
Txog Circuit Court

Analog suab los ntawm lub tshuab nruas classic. Txoj haujlwm no yog hnub rov qab mus rau qhov lig '90s thaum kuv tau ua haujlwm ua tus kws tshaj lij hluav taws xob thiab peb ib txwm tau txais cov lus qhia ntau yam rau tus nqi. TR 808 nyob ntawm cov lej thiab ntawm qhov ntawd kuv txawm hais tias Nws tau ua raws cov qauv lossis qee yam. Kuv ib txwm nyiam nws lub suab thiab pom qhov ntawd yog analog, Kuv pib nrog lub nruas nruas. Qhov xwm txheej ib tus phooj ywg ntawm kuv tau nug kuv yog tias kuv tuaj yeem rov ua qhov Circuit Court no rau nws lub hauv paus rap thiab kuv tau ua ib qho rau nws. Kuv tseem muaj kuv tus qauv los ntawm txhua lub xyoo uas koj tuaj yeem pom hauv cov duab.

Lub nruas ntses bass thaj tsam yog "yooj yim tshaj plaws" suab Circuit. Nrog qhov yooj yim, kuv txhais tau tias koj tsis xav tau lub tshuab tsim suab nrov, vim ntau lub suab xav tau (dawb, paj yeeb). Ib qho op-amp, ob peb lub transistors thiab resistors, thiab capacitors li qub. Nov yog kuv qhov kev coj noj coj ua tshiab nrog rau cov yam ntxwv tshiab:

  • Built-in rooj vag-rau-txhais converter.
  • Ua haujlwm ntawm 12 lossis 15v lub zog siv hluav taws xob ob, Eurorack txuas.
  • TR 606 tswj kev hais lus (tsis yooj yim nrog yuav luag zoo ib yam).
  • Lub suab sab hauv lossis sab nraud.

Qhov kev siv hluav taws xob no siv thawj 4558, 2SC945P, thiab 2SA733P uas kuv tau khaws los ntawm PCBs qub thiab qhov uas tuaj yeem pom ntawm cov txheej txheem qub.

Kuv xav tias PCB no nyob ntawm ntug rau Eurorack systems tab sis raws li kuv tau ua kuv cov qauv thiab racks kuv tsis muaj teeb meem kom haum nws.

Nco tseg: Hauv qhov kev qhia no, Kuv yuav xav tias koj tau paub nrog DIY cov phiaj xwm hluav taws xob.

Khoom siv

  • Ib txheej PCB (10x15cm)
  • Aluminium phaj (pem hauv ntej vaj huam sib luag 128.5 x 91.3 mm)
  • Xaiv qhov hloov ntawm-rau (2 txoj haujlwm, 3 lub qhov rooj) x1
  • Knob x 4
  • 3.5 mono nkaus x 3
  • Tus pin headers
  • Hlau
  • Cov ntaub ntawv xa mus thiab cim PCB (ntawm koj xaiv)

Cov cuab yeej

  • Laum tsav tsheb
  • Laum cov khoom 0.6-0.8 hli (PCB)
  • Laum cov khoom 3-7 hli (vaj huam sib luag pem hauv ntej)
  • Li
  • Soldering hlau, Soldering hlau … thiab lwm yam

Cov khoom siv hluav taws xob hauv qab no (BOM).

Kauj ruam 1: Txog Circuit Court

Txog Circuit Court
Txog Circuit Court
Txog Circuit Court
Txog Circuit Court

Phau Ntawv Pabcuam Thawj rau kev siv.

Ntawm no koj muaj daim ntawv ncaj ncees ntawm lub suab nruas suab paj nruag los ntawm thawj daim duab. Tsis muaj qhov tseem ceeb lossis qhov hloov pauv. Koj tuaj yeem pom TL072 ua lub ntsiab opamp tab sis qhov ntawd yog vim kuv tsis tuaj yeem pom IC raug ntawm kuv software tab sis koj tuaj yeem siv nws ib yam. Cov transistors tsis muaj dab tsi tshwj xeeb thiab koj tuaj yeem siv cov hloov pauv ib yam nkaus, tab sis saib cov pinout !. Kuv siv cov ntawv qub vim tias kuv muaj nws ntawm tes thiab ua kom muaj kev sib txuas zoo li kuv ua tau.

Chav tsev qub muaj CPU tswj hwm cov pa lossis ua rau. Thawj theem yog lub rooj vag-rau-ua kom muaj zog kom ua raws li cov mem tes ntawm 1 ms. Qhov dav mem tes ntev tshaj plaws yuav ua rau muaj kev xav ntawm 2 lub suab, ib qho ntawm ntug nce thiab lwm qhov ntawm ntug ntog. Qhov no yog Ken Stone txoj kev hloov pauv los ntawm txhua lub teeb liab teeb liab mus rau qhov ua rau nqaim nqaim. Cov ntaub ntawv ntau ntxiv NTAWM NO.

Lub voj voog no muaj 2 lub tswv yim: "Trigger" thiab "Accent". Qhov "Trigger" tso tawm Circuit (R37) txuas nrog lub suab hluav taws xob (R1) thiab TR 606 cov khoom siv sib xyaw ua ke (D4-D5). Xwb, yuav txuas nrog TR 606 qhov kev nkag siab qhov tseem ceeb (D6) yog tias tus xaiv hloov mus rau ntawm "sab hauv" txoj haujlwm. Qhov "Accent" Circuit output (R41) yuav ua rau lub suab nrov nrog lub teeb liab sab nraud los qhib lub suab ntawm qee cov kauj ruam. Yog tias "sab nrauv" raug xaiv, cov cim "Trigger" thiab "Accent" yuav tsum tau ua raws li tau piav qhia hauv phau ntawv qhia kev pabcuam.

Lub suab hais lus ntawm TR 808 nws yog qhov nyuaj me ntsis. Yog li kuv txiav txim siab sim nrog ib qho ntawm TR 606 nrog cov txiaj ntsig zoo. Thaum ua kom pom thiab tsis muaj lub ntsej muag tam sim no (LOW), lub Circuit Court xa tawm txog 4v thiab thaum lub suab nrov tam sim no (HIGH) koj tuaj yeem siv Lub Pob Ntseg tswj. Raws li phau ntawv qhia kev pabcuam, lub suab tuaj yeem yog los ntawm 4 txog 14v, tab sis raws li kuv tab tom siv lub zog +/- 12v, qhov siab tshaj plaws yog txog 11v. Tawm ntawm lub suab "ntab" yuav muab rau koj tus cwj pwm coj txawv txawv (tsawg kawg hauv kuv qhov kev paub) yog li tso qhov hloov mus rau "sab hauv" thiab tswj lub pob qhov rooj rau 0 yog tias koj tsis xav tau lub suab lossis hloov kho kom haum qhov xav tau.

NCO TSEG: Yog tias koj xav siv TR 606 lub suab hais lus hauv lwm lub suab zoo li cowbell, cymbal lossis hi-hat, ceeb toom tias muaj op-amp uas nqaim lub teeb liab mus rau 7-14v.

Cov teeb liab tso tawm ntawm thawj kab hluav taws xob mus rau pre-amp tab sis muaj zog txaus rau lub tov khoom.

Tag nrho cov schematic hauv qab no.

Kauj Ruam 2: PCB

Cov PCB
Cov PCB
Cov PCB
Cov PCB
Cov PCB
Cov PCB

Koj tuaj yeem siv cov txheej txheem koj nyiam ua PCB. Kuv ua kuv tus kheej nrog daim ntawv thaij duab/hloov cua sov/txheej txheem ferric chloride. Kuv tau sim kuv qhov zoo tshaj kom tau txais ib txheej/tsis muaj jumpers PCB.

Nco ntsoov tias tsis muaj cov kab los yog cov ntaub qhwv tau puas thaum lub sijhawm txheej txheem. Raws li ntau txoj kab thiab cov ntaub qhwv ib puag ncig los ntawm hauv av, xyuas kom tseeb tias tsis muaj cov khoom siv luv luv. Txheeb xyuas txhua yam nrog koj lub multimeter.

PCB xav tau kev txiav cim rau ntawm daim duab kom ua rau kev teeb tsa lub jacks thiab hloov tau yooj yim dua. Nco ntsoov tias koj tawm hauv av hauv qab C7.

Hauv qab no, PDFs npaj rau luam tawm.

Kauj Ruam 3: Circuit Court Assembly

Circuit Court los ua ke
Circuit Court los ua ke
Circuit Court los ua ke
Circuit Court los ua ke
Circuit Court los ua ke
Circuit Court los ua ke

Ua raws txheej txheej txheej saum toj kawg nkaus thiab cov txheej txheem lossis BOM los teeb tsa koj cov khoom siv. Saib xyuas nrog cov khoom sib txawv xws li diodes thiab capacitor ("dot" qhia +) nrog rau transistors thiab IC txoj kev taw qhia. Transistors yog ECB los ntawm sab xub ntiag, sab laug mus rau sab xis.

Txhawm rau nce lub hwj chim, kuv tau siv tus pin header thiab thawb tus pin kom ntev dua. Tom qab ntawd kuv tau teeb tsa lawv los ntawm cov khoom siv sab nrauv thiab siv lub tooj liab hauv qab. Khoov lub hwj huam potentiometers, thiab txuas rau tus pin taub hau. Yog tias koj txhawj xeeb txog qhov nrug nruab nrab ntawm cov potentiometers thiab sab laug, muab qee qhov npog rau hauv qab ntawm lub hwj chim. Xyuas kom tseeb tias koj lub peev xwm ntsuas tau haum rau tus qauv lub qhov.

Kauj Ruam 4: Pem Hauv Ntej Vaj Huam Sib Luag

Pem Hauv Ntej Vaj Huam Sib Luag
Pem Hauv Ntej Vaj Huam Sib Luag
Pem Hauv Ntej Vaj Huam Sib Luag
Pem Hauv Ntej Vaj Huam Sib Luag
Pem Hauv Ntej Vaj Huam Sib Luag
Pem Hauv Ntej Vaj Huam Sib Luag
Pem Hauv Ntej Vaj Huam Sib Luag
Pem Hauv Ntej Vaj Huam Sib Luag

Rau lub vaj huam sib luag pem hauv ntej, Kuv txiav ib daim ntawv txhuas thiab lo cov ntawv luam tawm los siv ua cov lus qhia txhawm rau tho qhov thiab txiav kom loj. Kuv ua raws Eurorack loj ntawm 128.5mm x 91.3 (18 HP)

Thaum lub vaj huam sib luag tau npaj tiav, kuv tau luam kuv cov "kos duab" hauv daim ntawv nplaum thiab ua tib zoo muab tso rau hauv phaj. Kuv kho tus qauv ntawm Inkscape kom ntxiv xim thiab ntawv. Tom qab ntawd kuv txuas lub Circuit Court mus rau lub vaj huam sib luag pem hauv ntej thiab ruaj ntseg lub zog nrog nws cov txiv ntoo.

Mount 3 jacks thiab tus xaiv hloov. Xaim lub tes tsho lub davhlau ya nyob twg ntawm qhov ua kom pom thiab ua suab nrov rau "GND" (xaim xaim). Tom qab ntawd txuas cov lus taw qhia ntawm qhov ua kom pom tseeb thiab qhov taub ntawm lub suab nrov ntsaws rau lawv lub davhlau ya nyob twg ntawm PCB (xaim dawb rau lub ntsej muag thiab xaim xim av rau lub ntsuas). Txog lub suab tso tawm, Kuv tau siv daim hlau thaiv kom tiv thaiv kev cuam tshuam, txuas lub tes tsho rau "GND" thiab cov lus qhia rau "tawm".

Qhov nruab nrab ntawm tus xaiv hloov mus rau "SW2". Txav mus rau qhov "int" txoj haujlwm thiab siv koj lub multimeter los nrhiav qhov txuas ntxiv ntawm nruab nrab thiab lwm lub nra. Ib qho txuas rau hauv nruab nrab mus rau "SW1" thiab lwm qhov "SW3". Thaum kawg, muab cov pob qhov rooj kaw.

Kauj ruam 5: Ua Suab

Ua Suab!
Ua Suab!
Ua Suab!
Ua Suab!
Ua Suab!
Ua Suab!

Txoj haujlwm no tau ua thaum lub sijhawm cais tawm … thiab kuv cov khib thiab cov qauv nyob ntawm tus phooj ywg lub tsev hauv lwm lub nroog. Yog li kuv tau siv lub tshuab fais fab khoos phis tawj los ua qhov haujlwm no. Cov kab lo lo lo lo ntxhuav saum toj kawg nkaus muaj kab qhia pom "-12" txoj kev tsheb nqaj hlau raws li tau hais tseg rau Eurorack cov khoom sib txuas. Nco ntsoov txog koj lub xov tooj txuas thiab kev taw qhia!

Kuv siv Arduino xa cov noob taum mus rau qhov qauv. Koj tuaj yeem siv cov nyees khawm yog tias koj xav tau. Ntawm cov duab, koj tuaj yeem pom tus cwj pwm ntawm kev sib tham, ib qho rau sab nraud sab nraud (3 ib txwm thiab 1 nrog tus hais lus), thiab lwm qhov teeb tsa sab hauv nrog nce lus.

Saib cov vis dis aus kom tau txais lub tswv yim zoo ntawm txoj haujlwm. Lub suab tau kaw ncaj qha rau daim npav suab, tab sis cia kuv qhia koj tias lub suab ib puag ncig ntawm cov qauv no txuas nrog lub suab nrov yog tus tua neeg!

Kuv tab tom ua haujlwm ntawm lwm lub suab los ntawm lub tshuab no thiab kuv vam tias yuav qhia tawm sai sai no.

Suab Sib Tw 2020
Suab Sib Tw 2020
Suab Sib Tw 2020
Suab Sib Tw 2020

Khiav Tawm Hauv Kev Sib Tw Suab 2020

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