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Jupiter Condenser

@jupitercondenser

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No really interesting modifications today. Today’s work was all pretty straightforward. Board is finished for now. I started working on getting the chassis holes enlarged to fit the panel mount Belton tube sockets. I’ll share photos of that later once it’s finished. It’s a slow process with a file and patience. Waiting on some hardware to mount the transformers to the chassis.everything is sort of on hold until 3” #8-20 SS screws arrive. Happy weekend

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A nod to the golden age of audio. ❤️🎶

Just built a set of beautiful @jupitercondenser 12awg speaker cables for a customer with Furutech spade connectors.

Inspired by the legendary Western Electric cables of yesteryear, Jupiter’s American-made 12 AWG speaker cable brings a classic design philosophy into the modern era, combining high-purity, tin-plated copper conductors with traditional lacquered cotton insulation. A beautiful marriage of vintage heritage and modern craftsmanship.

#TUBEXHORN #JupiterCondenser #WesternElectric #SpeakerCables #HighEndAudio

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I recently completed some improved builds of my Petite Onken styled 12” speakers. I redesigned some elements of the cabinet from the first build, and I worked with @gregnunnhome to build the cabinets. One pair he finished in a white oak veneer which I am very pleased with the results. I am using an Ojas 1211 horn from @Devonojas on this pair, along with a JBL St450 super tweeter.

I have also been fortunate enough to begin further experimentation with a pair of 808 multicellular horn from @lycan3r and a tractix horn form @iwan.arjanto

I’ve been studying the work of @je2a3 and others from Sound Practices to begin experimenting with first order crossover networks which I have also been able to integrate into these builds. With the current network, I am crossover over around ~2KHz with a Jantzen Audio inductor for the low pass filter to the woofer and a @jupitercondenser paper and wax capacitor for the high pass filter to the compression driver. I used 1.5uF vintage Soviet military K75 paper in oil capacitors for the crossover to the super tweeters.

I plan to experiment with lower crossover points with some Altec 806 drivers I recently acquired from @ictwoody

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Each Heureum (흐름) 100w Limited Run Custom Shop amplifier is meticulously Hand-Wired by owner & designer, Jung Kil; using hand selected NOS & Top shelf componentry (NOS Mustard Capacitors, NOS Sprague Electrolytics, @jupitercondenser Electrolytic & Yellow tones, NOS Riken, Allen Bradley Resistors, @mercurymagnetics Custom TX set, Tokyo Cosmos Sealed Pots, & more)⚡️
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This is Jung Kil's homage to King Edward- and his disciples like myself / @philx1111 / @itsphilipshouse / @nunobettencourtofficial - using his experience building and voicing amps for Joe Satriani (specifically for the Best of All Worlds VH tour) & other industry greats
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Each amplifier is also voiced for each of the five customers, & meticulously play tested, burned in, and dialed in before they leave the shop. Each amplifier comes with signed certificate of authenticity, signed & numbered placard on the headbox.
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(Shown in photo: Shop Prototype)..
#Heureum100w #JKElectric #ModdedMarshall #VanHalen #100wPlexi

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Each Heureum (흐름) 100w Limited Run Head comes with a hand signed certificate of authenticity: numbered 'x/5', as well as a limited lifetime warranty.

Each amplifier is built meticulously by only myself- point-to-point hand-wired with hand selected components & a custom voicing that J.K. developed by voicing and building amps for industry greats such as Joe Satriani (Dragon, Van Halen Best of All Worlds Amplifier)⚡️
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#JKElectric #Heureum #KoreanMade #LimitedRun #TubeAmplifier

Each amplifier is built using NOS componentry, as well as the highest quality boutique components from small USA builders & service providers: @jupitercondenser / @mercurymagnetics / @sourmashguitar / @narae.ink / @cedistribution / @mouserelec / @tubedepot

PTP hand-wired (input grid shielding shown)- meticulous attention to detail & wire dress drops the noise floor.

@mercurymagnetics Custom TX set..

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I picked up Silver Street by @jacobwendtmusic a few weeks ago from @commonwave_hifi and I’ve been enjoying it a lot!

It is being played back by a Denon 103R moving coil cartridge in the new Ojas head shell on my DV-505 tonearm. I am also using the step up transformers of @devonojas. The phono stage is my diy build of the Marantz 7 phono stage and the amplifier is a simple class D amplifier.

The speakers are a further rendition on my Petite Onken inspired cabinets. @gregnunnhome built these cabinets and finished them with a beautiful white oak veneer. This version features a simple first order crossover network I have been fine tuning utilizing paper and wax capacitors from @jupitercondenser for the high pass filter. The compression driver is horn loaded by an Ojas 1211 horn. I also incorporated a JBL St450 super tweeter that is crossed over with a 1.5uF vintage Soviet military K75 paper in oil capacitor.

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Heureum (흐름) meaning Flow or Flux.
Isolated guitar clips (low gain mode) with a simple 57/121 on a G12H30 Blackback from 1978. Voiced using my experience working with Joe Satriani on the Van Halen "Best of All Worlds" amp. This is my version of the Ultimate Modded SLP ⚡️
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-All controls Dimed, 118V @amp.rx Brownie
Specs of amp:
-100w Hand-Wired turret board José Mod Late 60's Super Lead (tuned channels by J.K : Not stock voicing)
-High Gain José input, Low Gain Custom Voiced "stock" plexi Input (bypasses extra circuit completely out of signal)
-José Pre-Phase master volume
-Slave out for Wet/Dry operation
-NOS Mustard/Sprague, Jupiter Condenser, etc. Capacitors; Riken, Takman, Dale, Allen Bradley, etc Resistors
-F&T/ARS Filter Capacitors
-Tokyo Cosmos Sealed Mil-Spec Potentiometers
- @mercurymagnetics Transformers, Custom Impedance OPT
-Steel Chassis by Valvestorm, Replica of a 1969 SLP
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#JKElectricHeureum #josemod #VHII #Plexi #VanHalen

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I am beyond grateful to have experienced sound at this calibre. This listening space was life changing. My Absolute North Star. Thanks @devonojas for your sonic guidance and @cooperhewitt for "Art of Noise"
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This system had some firsts for me. First moving coil cartridge (Denon 103R?), First 16" tonearm (Jelco?), first Step Up Transformer (OJAS Cinemags?), First vacuum tube pre amplifier (OJAS), First vacuum tube amplifier (OJAS),First mono blocks, First 31" Fostex subwoofers, First multi cell horns & supertweeters, First reel to reel -
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Thanks @andgallagher23 for indulging with me.
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#New York, you did not disappoint.
#OJAS #Listening #Hifi #audiophile

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A couple more beauty shots of the J.K. Electric Heureum (흐름)
#JKElectric #Heureum #JoseArredondo #MarshallPlexi #SuperLead

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Its READY to be burned in. 🔥
I used @metroamps '69 chassis & turret board as a base... added some flavor ala @headfirstamps.jason with his genius Jose Mod implementation, some of my own techniques and adjustments i already know i like as a starting point, with some build techniques I learned from my time working on the Satriani "Dragon" amp, & Grounds implementation ala @psionicaudio / Larry Grounding scheme.
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Notable Parts:
@mercurymagnetics 460V B+ PT / 2.2k OPT / 3H choke
- NOS Mullard .68/.022/.1 Mustard Caps, a couple of @jupitercondenser Bypass caps
-Takman Carbon Film, Dale Mil-Spec Metal Film, AB Carbon Comp resistors
-NOS Sozo caps, their new 500pf Giant Mica caps
-Tocos Japan Sealed Pots, Cliff Jacks, etc
-ARS 50+50/F&T 50+50 filters
-NOS Mullard 12AX7 for V2-V4, Short Plate New production CV4004 in V1, New production Mullard EL-34
-Faceplates coming from Blythe Engineering
-Influenced build by PhilX, Van Halen, & what i truly look for in an amp.
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#AmpBuilding #MarshallPlexi #JMPSuperLead #Josemod #JKElectric

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Servicing & un-f*cking two 70's Champ Circuits. Both were at a "Renowned" tech in the upstate for a month with both returning in worse condition than they left the owner.. owner brought them to me after being ghosted by the tech....
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The priority was restoring basic function to the Vibrochamp.. but actually making the Champ better than it was (which was in poor condition)..
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I addressed all broken wires, poorly installed components, wrong values... etc. Installed a 470R 2w Metal Ox screen grid resistor, a couple of @jupitercondenser Cosmos Caps for the bypass caps.. 3 prong power cable with custom strain relief, redid a lot of the grounds, one of which was poorly held on by hot glue..
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Lesson is, be careful with who you trust. Good news is both amps are working and sound great!
#Amptech #FenderChamp #VibroChamp #SilverfaceAmp #UnFucking

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Finally finished with the second of two fender champ's from the 70's. (Swipe for before photos... it was BAD)
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This one was particularly interesting because I decided to go with a 16awg thick wire for the mains power. Instead of the strain relief being one of those plastic snap on clamps... i went with a insulated 3/8" clamp with a #10 Keps nut & lock washer on the chassis.
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The other tech also broke the cathode bypass cap for the amp, I replaced with a 25uf/25v @jupitercondenser .. and the same with the cathode cap for the power tube (25uf / 50v)..
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I installed a 470 ohm metal oxide screen grid resistor.. redid almost all of the wiring in the amp (board wires to tube sockets, heaters, input jacks,transformer, and more...), fixed broken connections, wire and grounds all over the place from a previous mickey mouse tech. 🐭
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Now the ultimate fun... the speaker is blown.. so incoming, a new speaker for this thing! The gift that keeps giving.
#FenderChamp #UnFuckingWork #PoorAmp #Amptech

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