An overview of how I changed my BYOC ESV 2 Knob Bender into a modular design with regard to capacitor swapping.
Dedicated Page: Here Cost of Mod: $17 Replacement Parts: 2x Bourns 500k 10% accuracy potentiometer with DPDT switch (logarithmic/audio taper) A step-by-step video showing how to change any single tone … Continue Reading Modding A Single Coil-Tap Guitar to A Dual Coil-Tap (Step-by-Step Video)
First off, I want to give a big thanks to Kale Brown and Johnathan Pope for helping me out with this recording demo. Kale handled the guitar playing, Johnathan … Continue Reading Fender Blues Jr Page Updated With Sound Clips of Amplifier!
You can find the complete C-2 page here. Capacitors Used Include: ELNA SILMIC-II/SILMIC-II ARS/ToneRex, Nichicon Muse/Muse-ES/Fine Gold/FW and a Siemens/EPCOS 1uF MKP output capacitor. Previous Mod: 16V Zener Diode Mod … Continue Reading Update to Kenwood C-2 Pre-Amp Page (Re-Cap Complete)
The first part of my Sansui AU-517/717 restore guide, from recapping to finding those pesky shorted diodes. Not to mention how daunting it is just to remove and then rewire all the PCB’s! Here I hope to help shed some light on the subject.
Potomac AA-51 Audio Analyzer – Calibration Procedure, Service Manual, Ref Images — Early Version of Upcoming Page (Work in Progress)
I decided to go ahead and publish what I had ready in a blog post until it is ready for its own page. The AA-51 is what is holding me … Continue Reading Potomac AA-51 Audio Analyzer – Calibration Procedure, Service Manual, Ref Images — Early Version of Upcoming Page (Work in Progress)
First off, let me apologize for the slight delay, as North Carolina is taking a pounding in lighting strikes right now and I lost power for a good bit … Continue Reading Burson Play v1.6 DAC/Amp Announcement : The Winner Is..
Update 7/15/18: I just stumbled across by far the most detailed document I have ever seen on Black Gates™ and it is by Jelmax (the creators of the technology)! See … Continue Reading Preview: Rubycon Black Gate™ F vs. Nichicon Muse | XMOS Capacitor Oscilloscope and FFT Comparisons
Six Rubycon Black Gate F capacitors are on the way for the FUN01 (SU-1 Clone). Stay tuned to find out how much of a difference they have over Nichicon’s MUSE series.
Latest page added to Hallman Labs. Photo guide on making custom EL-8 cables.
Don’t see this very often, even in classes they didn’t have one of these that had cracked the wax. First two pictures are with a 50mm lens. I noticed … Continue Reading Testing 500x Microscope out on 1000V Sprague (K631788-14) Capacitor (folded/rolled design)
Complete Guide to Making I2S Cable from CAT6A & Connecting it to ES9038Pro DAC (Using Belden 1303E Catsnake™) Updated: 6/12/18
Note: You can open all images displayed on Hallman Labs in a larger view by right clicking and then using whatever your browser says to view the image. This … Continue Reading Complete Guide to Making I2S Cable from CAT6A & Connecting it to ES9038Pro DAC (Using Belden 1303E Catsnake™) Updated: 6/12/18
I have been slowly working on this project behind the scenes, without posting about it much (aside from on ComputerAudiophile.com). This is a “discrete” delta-sigma digital to-analog converter (DAC) developed … Continue Reading DSC1.Difference : Update on the DSD Dedicated No-DAC (DAC)!
I was using my Cornell Dubilier BF-50 (vintage) capacitor analyzer with all of the right things showing on the “Magic Eye” 6E5 (Philips JAN (Mil-Spec)) electron tube’s eye for leakage, … Continue Reading “Help”: My Cornell Dubilier BF-50 Is Testing Open Circuit as Good | Note : Treble Bleeds Halted
Well I currently have about 8 pages written of notes, thoughts on head to head Burson Play vs my custom ES9038Pro DAC. In the end it ended up … Continue Reading Apologies to the Neighbors (Burson Audio’s DAC Testing Reached 100.00dB max!!)
Ran Down (1st) ES9038PRO DAC main cause of the NLOCK | Stuck on Screen Issue w/ No Output! (~ 4 months of troubleshooting show me, it was not the dedicated TCXO clock module): Persistence Pays, this might work again!
This single loose solder ball (could have fallen inside the enclosure at any point) might explain all the problems I had with getting the DAC to lock on … Continue Reading Ran Down (1st) ES9038PRO DAC main cause of the NLOCK | Stuck on Screen Issue w/ No Output! (~ 4 months of troubleshooting show me, it was not the dedicated TCXO clock module): Persistence Pays, this might work again!