Author Topic: JojoD's Tube and Solid State Projects (Read 1126914 times)

JojoD818 · « **Reply #12270 on:** Dec 28, 2017 at 07:30 PM »

Quote from: Superman on Dec 28, 2017 at 07:07 PM

EHEM!

Interested

February 2018 bro.

I still got a super priority project to finish, got to work on this lang as metal works and powder coating plants are on holiday vacation. After that wala muna ako accept, I've been commissioned to do an esoteric audio research phono preamp too. I can feel the "darkside" of the force growing this coming year!

JojoD818 · « **Reply #12271 on:** Dec 29, 2017 at 02:01 PM »

Disclaimer: Pa-share lang ha... will properly post sa marketplace pag ready na.

Coming soon! (ETC February 2018)

Precision CNC cut "Corkey" Turntable Non-Slip Mat

Price: Php550.00 each. Metrowide shipping included via JRS, provincial orders subject to courier's logistics.
Material: Compound cork
Thickness: 4.5mm (Depending on your TT, may or may not require tonearm SRA/VTA/VTF adjustment)

Diameter: Comes in two sizes. 11.375" and 300mm (+/-1%)
Availability: 12 pcs 11.375" and 12 pcs 300mm

T&C's:
1. Payment via BDO deposit.
2. No meetups
3. Will accept orders only once machine cutting the batch is done.
4. No bull$hit reservations. You pay, I ship.

Will post pag game na! Happy New Year!

at_sunset_blvd · « **Reply #12272 on:** Dec 31, 2017 at 02:43 AM »

May SAMPLE TRIAL Brader Jo

Happy New Year to come Brader!

JojoD818 · « **Reply #12273 on:** Dec 31, 2017 at 09:30 AM »

Quote from: at_sunset_blvd on Dec 31, 2017 at 02:43 AM

May SAMPLE TRIAL Brader Jo

Happy New Year to come Brader!

Meron brader! Nakakabit sa TT ko hahaha!

Happy New Year! God Bless

JojoD818 · « **Reply #12274 on:** Jan 05, 2018 at 12:33 AM »

Requires extreme patience. Must painstakingly match each and every part that goes into it, not just the RIAA, but everything! Sometimes I wish that time has a pause button.

First 3 lang muna tayo ha... pasensiya na mahina ang kalaban.

JojoD818 · « **Reply #12275 on:** Jan 15, 2018 at 02:03 PM »

Timbs, delikado ito brader... napapanaginipan ko na siya...

JojoD818 · « **Reply #12276 on:** Jan 20, 2018 at 04:18 PM »

Doing my own anodizing on aluminum parts for my projects now. Tedious for it's many steps but fun to do chemistry.

Cleanliness is mandatory. Parts must be free from $hit.

Industrial strength degreaser.

Alkaline etching solution.

It starts to bubble once the part is immersed in the alkaline etch.

Made a quickie psu using an old transformer and a salvaged schottky barrier full-wave diode.

I used a lead flashing sheet laying around for my cathode.

Sit back and watch electrochemistry at work.

JojoD818 · « **Reply #12277 on:** Jan 20, 2018 at 04:20 PM »

parasound · « **Reply #12278 on:** Jan 20, 2018 at 04:44 PM »

Wow.. from electronics, wood and now plating..

Sent from my iPhone using Tapatalk

JojoD818 · « **Reply #12279 on:** Jan 20, 2018 at 05:09 PM »

Quote from: parasound on Jan 20, 2018 at 04:44 PM

Wow.. from electronics, wood and now plating..

Sent from my iPhone using Tapatalk

Thanks!

Copper and nickel plating soon. Electroless tin plating for my circuit boards too.

JojoD818 · « **Reply #12280 on:** Jan 20, 2018 at 07:32 PM »

Anodized brushed aluminum finish.

Not bad for a first timer.

JojoD818 · « **Reply #12281 on:** Jan 24, 2018 at 01:50 PM »

Class A Discrete Phono Preamp

mbtorn · « **Reply #12282 on:** Jan 24, 2018 at 04:22 PM »

Quote from: JojoD818 on Jan 24, 2018 at 01:50 PM

Class A Discrete Phono Preamp

Ganda naman!!

JojoD818 · « **Reply #12283 on:** Jan 27, 2018 at 03:09 PM »

My Arduino-based turntable strobe.

JojoD818 · « **Reply #12284 on:** Jan 27, 2018 at 04:20 PM »

Success!

JojoD818 · « **Reply #12285 on:** Jan 30, 2018 at 02:05 PM »

Added a Jigsaw Cutting Jig to my existing Edge Banding Jig. Sayang plywood plus para maging multi-purpose jig siya. This is going to be a big help for cutting aluminum sheet stock for my projects.

Prepped some leftover plywood which will serve as guides for the jigsaw.

Temporarily screwed the guides to the edge banding jig platform.

Installed using wing nuts for easy tightening and loosening. Also glued a piece of scrap wood to serve as an end stopper.

Initial cut to the plywood platform.

And it works like a charm.

JojoD818 · « **Reply #12286 on:** Jan 30, 2018 at 05:14 PM »

Ang husay pamutol parang Swiss cheese lang.

ricky · « **Reply #12287 on:** Jan 30, 2018 at 05:35 PM »

Quote from: JojoD818 on Jan 27, 2018 at 04:20 PM

Success!

Timing light pwede na mag tune up tol

Jo lawayan mo edge ng plywood guide para madulas. Candle pala para smooth at hindi maubos sa friction

JojoD818 · « **Reply #12288 on:** Jan 31, 2018 at 08:59 AM »

Quote from: ricky on Jan 30, 2018 at 05:35 PM

Timing light pwede na mag tune up tol

Jo lawayan mo edge ng plywood guide para madulas. Candle pala para smooth at hindi maubos sa friction

Langya ginawa mo makina eh

Uy totyal pa yan kandila! Floor wax ginamit ko yun nasa kahon.

nizmo · « **Reply #12289 on:** Feb 01, 2018 at 03:42 PM »

Quote from: JojoD818 on Jan 27, 2018 at 04:20 PM

Success!

pagbilan nga ng isa nyan pareng jojo... walang strobe turntable ko dito eh..

JojoD818 · « **Reply #12290 on:** Feb 01, 2018 at 05:37 PM »

Quote from: nizmo on Feb 01, 2018 at 03:42 PM

pagbilan nga ng isa nyan pareng jojo... walang strobe turntable ko dito eh..

pareng jim! sureness. handa kita ng ganyan pagpunta mo sa bakuran ko.

JojoD818 · « **Reply #12291 on:** Feb 01, 2018 at 05:51 PM »

My old 15Amp 13.8VDC regulated power used during the haydays of VHF radios. Busted regulator, busted this and that. Jammer kasi eh.

Tranny still working... time to revive it.

Not much left of the original board...

So I made a new one, but this time it will be fully adjustable from 4V to 18V so I can use it as a high current lab supply.

Needed a quickie solution so I can replace the analog meter with the digital one... CNC to the rescue...

And it's working again!!!

Everything was fine na sana eh, unfortunately while I was having coffee I noticed the word "COURSE" is wrong!!!!!!!!!!! Dapat COARSE siya. Punyemas wrong spelling ako!

Oh well, bahala na si Abacus Robot gumawa ng bago niyan with the right spelling.

at_sunset_blvd · « **Reply #12292 on:** Feb 01, 2018 at 07:45 PM »

Jammer

4 J antenna or YAGI as we used to call it here in Cebuano?

Break Break One Twos on?

JojoD818 · « **Reply #12293 on:** Feb 01, 2018 at 08:10 PM »

^ hindi naman palagi hahaha! pag naiinis lang... mic press +rubber band!

Cushcraft ARX-2B (aka Ringo Ranger II) for omni-directional purposes + twin 7-element Yagi-Uda as directional.

Jam! Jam! Jam!

JojoD818 · « **Reply #12294 on:** Feb 06, 2018 at 06:30 PM »

Geek Pulse Xfi DAC Linear Regulated PSU project.

JojoD818 · « **Reply #12295 on:** Feb 07, 2018 at 12:29 PM »

The misis gave me used plastic containers for a new anodizing tank.

Anodized aluminum brushed finish...

JojoD818 · « **Reply #12296 on:** Feb 10, 2018 at 07:47 PM »

JojoD818 · « **Reply #12297 on:** Feb 10, 2018 at 07:52 PM »

Quikie constant current source for my anodizing needs...

I love p2p wiring

tony · « **Reply #12298 on:** Feb 11, 2018 at 08:17 AM »

nice one Jojo....merong anodizing shop sa Hulong Duhat sa malabon, doon ako nagdadala ng pa anodize dati, then me nadiscover ako sa Pasig, pero nagsara na rin...
alam ko me bilihan ng mga coloring dyes para sa anodizing, di ko lang alam kung saan..

JojoD818 · « **Reply #12299 on:** Feb 11, 2018 at 10:52 AM »

Thanks Tony. Meron pa nag exist kaso nasa Binan Laguna. I'm wondering why they are closing down? It may not be a lucrative business but I'm sure there will be people wanting to have at least something anodized. Most plating/chroming shops nowadays don't offer anodizing anymore eh. Diyan sa Del Monte near A. Bonifacio Ave meron ako nakita plating shop but no anodizing.

Oh well, in-house na lang and dangerous chemicals pero nothing new, sanay naman tayo sa ferric chloride. Mabusisi lang pero enjoy din naman, new things to learn.

Quote from: tony on Feb 11, 2018 at 08:17 AM

alam ko me bilihan ng mga coloring dyes para sa anodizing, di ko lang alam kung saan..

Ricky suggested a supplier too, will check it out this week kung pwede hindi bulk size ang buy sa kanila. Just in case may info ka please let me know, I'm starting to do colored anodizing pero as it is medyo hit or miss pa ako. Practice makes for more practice.