Zen Mod

znas mene .......

http://www.imdb.com/title/tt5462602/?ref_=nv_sr_1

pa i ne moz da slusas nesto brze i kompleksnije , kad ti je taki sistem

u planu je da bude na FAK-u ...... verovatno i Wolandov prvi Iron Pumpkin , i ovaj SE koji sad sastavljam

bez trovanja teme , molim

alfe imaju Qts prevelik za bilo kakvu kutiju

yup, editovano

lepi

radi se na demo primerku , Iron Pumpkin SE ce gudi na FAK-u , ako svi loncici budu na broju

footprints

Iron Pumpkin preamplifier(s) kits Mrzi me da ponovo pisem (na srpskom) pa samo paste sa Big DiyA: cene za tuzemstvo/Otadžbinu/lokal - bez shipping i paypal troskova i jos 10% dole Well , everything explained and shown in technical thread : http://www.diyaudio.rs/topic/8681-iron-pumpkins/ on sale are several options : 1. Iron Pumpkin SE (yup , that one being for RCA inputs/outputs) ,consisting of : -Iron Turtle SE AVC , as assembled and tested unit (two irons on one common pcb ), rotary switch ,50cm flat cable finished, necessary stand-offs -two pcs of Iron Pumpkin SE mono pcbs (selector, shunt regs , buffer -all that on one pcb) , with all small SMD JFets presoldered , all BC bjt critters , voltage references , BD bjts for reg CCS ,all relays, Philips MKC 1uF caps , selector Lorlin switch with two finished flat cables, all multiturn trimpots , necessary 1-pin sockets for optional Borbely WCF buffer iteration, u22 cap for WCF price - measly 550E , plus 30E for Paypal , P&P expenses 2. Iron Pumpkin (Bal) (yup , that one being for XLR inputs/outputs , possible combination with RCAs, read threads for that) ; that one consisting of : -Iron Turtle (Bal) AVC , as assembled and tested unit (one iron on one pcb but two pcbs stacked having same footprint as previous one) , rotary switch,50cm flat cable finished, necessary stand-offs -two pcs of Iron Pumpkin (Bal) mono pcbs (selector, shunt regs , buffer -all that on one pcb) , with small SMD JFets presoldered , all BC bjt critters , voltage references , BD bjts for reg CCS ,all relays, Philips MKC 1uF caps , selector Lorlin switch with two finished flat cables, all multiturn trimpots , necessary 1-pin sockets for optional Borbely WCF buffer iteration, u22 cap for WCF price - measly 650E , plus 30E for Paypal , P&P expenses 3.Iron Turtle SE AVC (so no electronics), as assembled and tested unit (two irons on one common pcb) , rotary switch ,50cm flat cable finished, necessary stand-offs price - measly 450E , plus 30E for Paypal , P&P expenses 4.Iron Turtle (Bal) AVC (so no electronics) , as assembled and tested unit (one iron on one pcb but two pcbs stacked having same footprint as previous one) , rotary switch,50cm flat cable finished, necessary stand-offs price - measly 550E , plus 30E for Paypal , P&P expenses 5. Iron Pumpkin SE electronics ( so no AVC in package ) (yup , that one being for RCA inputs/outputs) ; that one consisting of : -two pcs of Iron Pumpkin SE mono pcbs (selector, shunt regs , buffer -all that on one pcb) , with all small SMD JFets presoldered , all BC bjt critters , voltage references , BD bjts for reg CCS ,all relays, Philips MKC 1uF caps , selector Lorlin switch with two finished flat cables, all multiturn trimpots , necessary 1-pin sockets for optional Borbely WCF buffer iteration, u22 cap for WCF price - measly 130E , plus 20E for Paypal , P&P expenses 6. Iron Pumpkin (Bal) electronics ( so no AVC in package)(yup , that one being for XLR inputs/outputs , possible combination with RCAs, read thread for that) ; that one consisting of : -two pcs of Iron Pumpkin (Bal) mono pcbs (selector, shunt regs , buffer -all that on one pcb) , with small SMD JFets presoldered , all BC bjt critters , voltage references , BD bjts for reg CCS ,all relays, Philips MKC 1uF caps , selector Lorlin switch with two finished flat cables, all multiturn trimpots , necessary 1-pin sockets for optional Borbely WCF buffer iteration, u22 cap for WCF price - measly 160E , plus 20E for Paypal , P&P expenses for all technical questions , visit linked thread for other questions - ask here or in PM considering prices from other vendors of AVC thingies , I believe this is pretty good bang for the buck shipping time from 1 to 4 weeks ......... sometimes things need to flow from Germany or China ...... and yes case/chassis needed : regular width , minimum 3HE

eve prvi oglas ....... http://www.diyaudio.com/forums/swap-meet/311916-iron-pumpkin-preamplifier-kits.html da prevodim za ovde ? popust za tuzemstvo .....

typo veliko opterecenje

turis bookshelf zvucnjak na stalak , turis po metra knjiga na bookshelf zvucnjak em zvuci bolje , em je istinito

I kako prosao danasnji brm-brm dan ? eve kako meni bilo : Vreme sugavo , kisa stane pa pocne od jutros skontam utanjilo se u kuci sa filter kahvom, a ja ovisnik ; gledim ceznjivo napolje da skontam kad ce shower da prekine bar na malo , da mogu da idem sa (bilo koja ) dva tocka umesto cetiri prestade , ja jedva docekah ...... ogrnem tanku jaknicu i turim kacigicu (za lokal) na glavu , odzujim do prve prodavnice ..... "tvoja kahva stize u utorak , sad nema!" odzujim do druge prodavnice istog lokalnog koncerna .......... same story izadjem iz prodavnice ..... kontam - isti lokalni koncern ima prodavnicu u seocetu 7km dalje ....... odzujim tamo , mmcu mu hladnjikavo u jaknici i kacigici sa 80 ....... tamo nema kahve moje izadjem iz prodavnice ..... kontam - isti lokalni koncern ima prodavnicu u sledecem seocetu 10km dalje ....... odzujim tamo , mmcu mu hladnjikavo u jaknici i kacigici sa 80 ....... tamo nema kahve moje izadjem iz prodavnice , krenu kapi kisice ......... 17km do kuce a ja u jaknici i kacigici zuj ..... 80....90.....100..... zuj stignem kuci , skinem kacigicu i jaknicu , obucem dzemper i skuvam crnu kavu

so , schmtcs are here both Pumpkins ( meaning - what's on electronic pcbs ) are completely compatible to be used as (still MIA) Iron Pre , not yet visible in DiyA Store so , selector - pot - buffer - autoformer ( be it everything SE or Bal) is good and certainly cheaper way , even if definitely few notches down. schematics are proven , so there is one (little more complicated ) possible substitution for Toshiba/LS approach. feel free to try it , on protoboard or PtP , your choice how it sounds ? well - foot-tapping , music is there ..... no thoughts about spectrum dividing , music is simply there and - I'm not responsible for that ( even if Genius) ..... that's simply nature of Good Iron ....... remember M2, F6 , Ultrasimple BAF Sony amp ?

did I forgot something ..... ? obviously - didn't uploaded some pics where applicable

bunch

more of Turtle

Iron Turtle details ....... if you see two Irons (pcb sandwiched in between) that's stereo pack Iron Turtle SE ; if you see one Iron on pcb , that's mono (Balanced) Iron Turtle

more of Bal

Now , on to Iron Pumpkin (Bal) ; block schematic similar , except few facts : -two buffers per channel -AVC/autoformer connected in differential manner ; again – there is intrinsic SUSY -error correction , whatever you choose to call it . Facts about construction written for SE, applies here also . -One AVC Iron on one pcb , so two pcbs for stereo ; Newest iteration of I. Turtle pcbs optimized for stacking , so footprint stays the same as for SE. -There is option for using any of 5 inputs as SE ; put RCA instead of XLR , mount 1N4148 diode in adequate position for energizing one additional relay and that’s it . Trick is to energize additional relay , to break connection between negative side buffer ( now being without signal ) and negative side of AVC; that way buffer’s output is not acting as virtual zero to negative VAC winding , thus not choking it. AVC is now fed solely through positive side winding , producing ( naturally) output on both sides/phases . So – you can use SE inputs from none to 4 …….. in case that you want all 5 of them being SE inputs , having Bal output …….. then either use SE amp , so choose Iron Pumpkin SE instead , or use Iron Pumpkin with your Bal input amp , but skimp on neg. buffer elements .

few pics

Time for few block schematics ; first Iron Pumpkin SE ( chinch, RCA , whatever) What’s shown are basic blocks – input selector , single buffer ( single phase , yup) fed with Good Gemini shunt reg , then AVC , with selectable input tap ; when fed to top – possible gain is odb , with chooice of tapping in to -2 to -8 db , respectively , so possible gain from 2 to 8db. Selector – simple 5-position rotary switch operating with 5 Takamisawa relays ; they’re good for industrial and medical instruments , so …. Good Gemini – simplified but also hot-rodded iteration of well known Shunty. Buffer – current mirror biased Diamond Buffer …… nothing new , but painstakingly to achieve same THD spectra as with Toshibas , luckily with even beter behavior under heavier loads. AVC – called Iron Turtle SE ,based on Toshiba Metglas (AMCC008) cores. Coil – 10H/100Rdc jobbie , as (always!!) compromise between needed Good Inductivity and several Bad Factors (known as Bad Capacitances , Bad Inductivity etc. …. in fact , using AVC instead of TVC is Bad Inductivity non existent ); insulation between layers is Teflon based , bobbins are/will be custom ones , everything PVC coated after assembly. Disclaimer – as for difference to almost all AVCs on market , these aren't intended to be Swiss Knife universal jobbies , they are constructed to be driven with buffer or , at least , pretty potent signal source apparatus. Two AVC Irons on one Iron Turtle pcb , so that’s enough for stereo. Switching again through Takamisawa relays ; flat cable going from Turtle pcb to front plate mounted 24 position Chinese Switch . Chinese Switch – even if made by carefully chosen group of Chinese Virgins , only during full moon nights , each one is gladly disassembled then greased with graphite grease then assembled again , by Mighty ZM himself.