Showing posts with label diy. Show all posts
Showing posts with label diy. Show all posts

Tuesday, August 27, 2019

Yet Another 866A Video

This time a time lapse. Very strange not what I expected to see. I was surprised by the flicker rate because in our time they were solid blue. 

Sunday, August 25, 2019

Freed MEGOHMMETER Test equipment.

My friend Chris brought over another piece of cool test equipment. This is not just an ohm meter but a MEGOHMMETER!!!!! Great googlie mooglie!! I've been honing my DIY skills repairing old test equipment. We have been through a stack of Sound Technology test gear. Next on the list may be a few old scopes. Not sure when we will get to this one but it sure is cool.
 



Sunday, August 11, 2019

Monolithic Power Supply - Where There Is Smoke There Is Smoke

Chris and I have beeen working on this power supply off and on for a while. We are almost there and today we let her rip two 6D22S and two 866A tubes. It weighs almost 90lbs. Sadly the vintage ginormous power transformer started smoking and even stranger the 866A insulators were lightning up. If the video plays Look close for smoke and sparks. Fortunately we have a few transformers we can swap. We we were hitting 1kv and around  300ma+. Very fun we definatly went out for beers to celebrate!

Tuesday, February 19, 2019

Monday, November 19, 2018

DIY Klipsch Belle Fully Horn Loaded Speaker Clones

My friend Kenny built a pair of Belle clones for my friend Dave. They turned out amazng but I wish I had more pics. I owned Belles years ago and wish I had never sold them. They sound amazing.





Monday, November 12, 2018

Convert RTR Parts To DIY Tube Amp

 This guy is interesting and very inventive. I find his project interesting.

Wednesday, September 12, 2018

Morning Glory Horn 1943

This is really cool 1943 tech and would be a fun build today. A tractrix morning glory 8-)

Thanks FredDYI this is really cool.

Wednesday, November 29, 2017

New Three Way Horn System In The Works

I've been collecting parts for this for many years. This may be the slowest project I've ever done. My friend JC designed the basshorn, provided the math for the builder of the tractrix mid and tweeter. I need to build top hats for these and my least favorite part the passive crossover. Fortunately my friend Chris is helping me with this or I'd have to go active. 

Here we have the bass horn. It is large and can accomodate 12" 15" or 18" drivers. For this application we are using 12" drivers. These will play up to around 350hz.
I am a toddler when it comes to putting systems together but the main point in DIY is to learn so if it doesn't work try and try again.
I need more stuffing. 

 Fortunately these drivers can pick up around 350hz. These are JB 2482 drivers and are so very heavy.
 They will be mounted to these pure tractrix horns. They do look better in person not sure what the flash did here.

 Most of these horns are on loan to me but will be fun to try out for a while. Round tractrix with B&C DE250. They start breaking up past where I can hear lol....
This will be going together soon and then tweaked until it sounds right. That will likely take a while. This will be my second system on the other end of the house lol. Now to find technology to stream audio in sync to both systems... Anyone have any suggestions?

Check out the DIY tractrix horns at Fastlane Audio.
http://www.fastlaneaudio.com/

Wednesday, September 27, 2017

Mounting Boards Simplify Wiring

I wish I had seen this long ago. I finished a project last year that I look at now with severe disgust but it is such a cluster I don't wanna touch it since it is working. Ahh DIY live and learn and unlearn and relearn.

Monday, October 24, 2016

Retro DIY - Audio In The Home

DIY built ins in the 50's were very popular. I've purchased a couple because the components were so good. This article was in Audio magazine.





Thursday, March 31, 2016

A Laboratory Report On Stereo Amplifier Kits - Part 2

1962 article on DIY amplifier kits of the day including Lafayette LK-550, Realistic 210, and Scott LK-150. 





Thursday, March 17, 2016

Smoke 'em if you got 'em

I haven't had much trouble with parts from Ukraine except being slow to arrive. The mistake was all mine. I ordered some caps but was abit surprised by their size.  I might need a bigger chassis to stuff 6 of these in each....  
 Nice glass seals.

Sunday, February 8, 2015

My 1st DIY SET AMP 2A3/45 Part 2

It's really alive the hum has been banished. The original Frankenstein is one of my favorite movies. I like it almost as much as Freaks. I don't know if anyone else obsesses over it like me but after he utters the iconic It's Alive a few times he follows it with "now I know what it feels like to be god".  All I'm saying is that Jeffrey, Dave, and Chris may have created a monster....


Thanks again Dave Jeffrey Chris and Joe for the help and encouragement.

Sunday, February 1, 2015

My 1st DIY SET AMP 2A3/45 Part 1

It's ALIVE!!!!! Welll.. Sort of....

 I've always wanted to build my own tube amp so when I was in New York in May hanging with Jeffrey and Dave they sent me home with a schematic and enough parts to get started on a Stereo 45/2A3 amp. I have been moving toward this project at a glacial pace. I had a bit of help from my friend Chris on layout and the use of his drill press. Metal is so so messy..... 
  
 I like the looks even if it isn't perfectly symmetrical. That makes me abit crazy... loll

 So how did it go? 
Well after my friend Chris went over my work yesterday he only found one issue with a wrong resistor rating which he happened to have so he dropped them by for me today. I completed my homework and plugged it in and turned it on.
CLICK
Some hum.... Only one channel working.... Sound is coming out.
But no smoke no burning no smoke 8-)
 I wasn't going to post until it was working perfectly but that wouldn't be very honest or fun. We learn the most from mistakes anyway.
Stay tuned for part 2. 

EDIT Part 1.34
It turns out parts like LED's have polarity and if one is reversed it does not work. Now I have both channels working and the amp is stable. However it just sounds terrible. Tomorrow I'll dive in to take measurements to see what else I have done wrong and buggered up. 


Wednesday, October 22, 2014

Garrard 301 Plinth Building Part 1

I've had this Garrard for a few years and it still works very well. I built this plinth in 45 minutes and it was supposed to be temporary but no I used it for many years.
This is the before pic.
 I met local Klipsch forum member Kenny this year. His woodworking skills are top notch. I was lamenting my lack of a proper plinth for this great table while we were listening to the Jubilees. A few emails later and he has offered to help me with the plinth. It is great to have generous forum members in town.
 He recommended some 13plly plywood so I picked up a sheet at a local supplier. 
This is a sheet of 13 ply ripped down to 21 x 18 inch pieces. Ten total with one used as a template. If we use 9 layers of 13 ply that is 117 ply layers... Dang...
 This was the most time consuming aspect of the plinth build but the rounded corners look spectacular.
 Here is where we stopped on Saturday. That is alot of progress in 4 hours.
 About two hours or so on Tuesday night and we have everything cut and tonearm placement is spot on.
 This has far exceeded my expectations.
Now I have homework.
Glue
Clamp 
Repeat as necessary.
Sand
Pick veneer.

Thank you Kenny for your time and help building this Garrard 301 plinth.
Top notch.

Part 2 to follow.