Izrada, održavanje, saveti...
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bancika
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by bancika » 28 Jun 2012, 13:11
U Nisu koliko znam ima samo onih budjavih plasticnih i neki slicni alpha ali samo u par vrednosti. Jel ima neki prodavac da prodaje siri spektar vrednosti, treba mi
500K (i lin i log)
250k (i lin i log)
100k lin
po mogucstvu PCB mount.
tnx

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Trooper
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by Trooper » 28 Jun 2012, 14:38
Ima u silkenu u bg neki no-name, metalni, split shaft, vrednosti ja mislim od 25k pa navise da ima
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bancika
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by bancika » 28 Jun 2012, 14:46
nema na sajtu

sibnuo sam im mail pa da vidimo
tnx u svakom slucaju
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mislim_stvarno
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by mislim_stvarno » 28 Jun 2012, 15:56
nemaju skoro nista osim 100k (bar je tako bilo pre tipa 2 meseca)
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Markony
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by Markony » 28 Jun 2012, 16:19
Logaritamski potovi su obicno znatno skuplji od linearnih.
Predlozio bih ti da sam napravis log pot od linearnog i ustedis koj dinar. Pored lin pota potreban ti je i otpornik cija otpornost iznosi 10% otpornosti pota.
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bancika
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by bancika » 28 Jun 2012, 16:23
znam za foru, ali ima i losih strana, a i nemoguce je uraditi kad hoces da koristis pot kao varijabilni otpornik
http://www.geofex.com/article_folders/p ... tscret.htm
Unfortunately there's a gotcha in there. It's true that the voltage division ratio of this rig is arbitrarily close to that of a log taper pot. However, neither the load seen by whatever drives Vin or the source resistance as seen by the input of whatever is connected to Vout is close to what would exist for a real log pot of value R. In fact, the load on Vin varies from 1/(1+1/b)*R up to R. That means that if we're trying to do a log taper with b = 1/4, the load on Vin will be as much as 0.2* R. This may be OK, but you have to keep it in mind.
Nije mi problem da platim malo vise (ionako kostaju oko 100din) al ako ne nadjem adekvatne, moracu tako nesto
tnx
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Rocket Roll
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by Rocket Roll » 29 Jun 2012, 14:53
Silken i Comet Electronics, i to je sve. U pitanju su Song Huei potenciometri, koje odnedavno koristi i Electro-Harmonix, a istih su dimenzija kao 16mm Alpha potenciometri.
Uglavnom ćeš ih naći u linearnim vrednostima. Logaritamski - retko i teško.
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bancika
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by bancika » 29 Jun 2012, 15:15
znaci mali meda mi ne gine

edit: hmm, izgleda ovi smradovi u MG imaju vecinu vrednosti i lin i log...aj pogledacu prvo kod njih, na 5 minuta su mi, samo sto mrzim tamo da kupujem.
tnx!
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Rocket Roll
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by Rocket Roll » 29 Jun 2012, 17:05
bancika wrote:
edit: hmm, izgleda ovi smradovi u MG imaju vecinu vrednosti i lin i log...
Da, ali su verovatno u pitanju Piher odnosno Radiohm plastični potenciometri, zar ne?
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luci
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by luci » 29 Jun 2012, 17:13
ja sam narucio danas iz mg-a 500k log, kad stignu, u pondeljak najverovatnije javim kakvi su...
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Trooper
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by Trooper » 29 Jun 2012, 17:16
A jel ima neko ideju gde naci pristojne kapice? Tj treba mi trenutno onih za full shaft, kasnije ce trebati i za split. Gaja ima par prosecnih za split shaft, al cini mi se da je to to
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bancika
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by bancika » 29 Jun 2012, 17:33
Rocket Roll wrote:bancika wrote:
edit: hmm, izgleda ovi smradovi u MG imaju vecinu vrednosti i lin i log...
Da, ali su verovatno u pitanju Piher odnosno Radiohm plastični potenciometri, zar ne?
izgledaju na slici kao alpha pcb mount i za vecinu pise da ima na stanju za 130din. Ovi plasticni su shit totalni.
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bancika
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by bancika » 29 Jun 2012, 17:34
theTrooper wrote:A jel ima neko ideju gde naci pristojne kapice? Tj treba mi trenutno onih za full shaft, kasnije ce trebati i za split. Gaja ima par prosecnih za split shaft, al cini mi se da je to to
jel za 6mm ili 6.35mm? Za ove druge nisam video uopste, a za evropske i ima neke relativno ok za full shaft. Vidjao sam neke numerisane po radnjama, podsecaju na fender. Za split nisam video uopce.
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Trooper
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by Trooper » 29 Jun 2012, 18:21
6mm, banzai. Ono, one mxr fluted knobs su idealne, one manje (valjda 16-17mm precnik cini mi se) ali je cim porucivati
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