DCAudioDIY.com

DC Area Audio DIYer's Community
It is currently March 28th, 2024, 1:06 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 28 posts ]  Go to page 1, 2, 3  Next
Author Message
PostPosted: March 18th, 2020, 12:01 pm 
Offline
Site Admin
User avatar

Joined: February 28th, 2013, 10:38 am
Posts: 1682
So, like many of us, I'm stuck at home a good bit of the time right now... So, what's everyone working on with all they extra time? I'm working on rebuilding a pair of outboard playback electronics for reel to reel playback.

Anyone else?

Roscoe

_________________
I can explain it to you, but I can’t understand it for you.


Top
 Profile  
 
PostPosted: March 18th, 2020, 12:08 pm 
Offline

Joined: January 14th, 2015, 11:15 pm
Posts: 499
I have all of my amp building stuff in storage but I am considering opening a couple of boxes, just for something to do. I have an old Baldwin organ amp that I might play with. I was planning to donate it at the next north of DC meet.

ray


Top
 Profile  
 
PostPosted: March 18th, 2020, 12:30 pm 
Offline
User avatar

Joined: July 24th, 2015, 4:17 pm
Posts: 1701
Location: Parkville, Maryland
I have a Mark Levinson head-amp I've been meaning to restore and upgrade for sale.

Then following that I figure I might as well upgrade my Spectral DMC-10 pre-amp for sale.

Plus -- I have other stuff to sell that I have been too lazy to deal with. The time is ripe and money is tight.

Altec drivers, tubes, Radio Craftsman amps., hi-end interconnects, and parts that may have value to post.

_________________
Walt


Top
 Profile  
 
PostPosted: March 18th, 2020, 1:31 pm 
Offline

Joined: March 5th, 2013, 9:35 am
Posts: 259
Location: Highland, MD
I'm trying to buckle down and finally finish my phono preamp that I started years ago.. I've been running up my PayPal account getting power supply parts and other stuff I've misplaced or forgot to get before. :lol:
I wanted to see how many tubes I could use so I'm up to 13! Only three in the signal path: two triodes gain stages and a cathode follower to drive the cable. The gains stages are single triodes, the follower is a dual triode, 6 voltage regulator tubes and two damper diodes. Lots of CCSs in the mix as well.

_________________
- Guy


Top
 Profile  
 
PostPosted: March 18th, 2020, 2:14 pm 
Offline
User avatar

Joined: February 28th, 2013, 3:31 pm
Posts: 1780
Since hopefully we will be moving into the new house in June, I'm spending most of my time preparing the current house. Lots of packing, repairing and cleaning.


Top
 Profile  
 
PostPosted: March 18th, 2020, 2:23 pm 
Offline
User avatar

Joined: January 15th, 2015, 7:19 am
Posts: 1697
Location: Baltimore MD
My wife will start working from home tomorrow so I will hide in the basement working on my Janis W-1's to get ready to sell.
I have been wondering what is going to happen with the looming recession. What going to happen to superfluous industries like home audio


Top
 Profile  
 
PostPosted: March 18th, 2020, 2:47 pm 
Offline
User avatar

Joined: February 28th, 2013, 3:31 pm
Posts: 1780
Like every other recession it depends on how soon things get under control which will be a combination of medical and psychological factors. How long it will take to recover is anyone's guess but things will come back. Along the way marginal companies will go away but new companies will spring up to create new opportunities. If the black death which killed an estimated 30 to 60% of the population did not wipe us out, I'm sure we will get through this with admitted hardships. If you are one of those that don't survive it sucks for you but that is true of any disease or accident.


Top
 Profile  
 
PostPosted: March 18th, 2020, 3:23 pm 
Offline
User avatar

Joined: January 15th, 2015, 7:19 am
Posts: 1697
Location: Baltimore MD
i guess that was optimistic


Top
 Profile  
 
PostPosted: March 19th, 2020, 9:18 am 
Offline

Joined: June 4th, 2013, 2:39 pm
Posts: 487
I'm restoring/updating a pair of Heathkit W4's I bought a while back and replacing the original Chicago OPTs with a pair of Acro TO-300's, a far nicer OPT. So now they'll be sort of hybrid W4/W3A-M's. Then I want to get my "Musician's Amplifiers" off the breadboard and into a final build with the Peerless S-265-Q's.

I also restored/updated an old homebrew 807 Williamson a guy on Audiokarma found. Man, it was a mess, A monumentally amateurish build (yes, those are bare twisted plate leads running right under the ground buss) and would hardly have been worth the effort except that it had a Partridge WWVB output transformer that was worth salvaging. We tried to figure it out long-distance but the guy was understandably a bit daunted and finally just sent me the signal chassis. Pics below. I was also interested to measure the WWVB and see what it looked like on a scope. What a disappointment. Couldn't get a decent 10K square wave out of it. I did my best but getting it stabilized was a bit beyond my skills. I tacked in a Peerless to make sure it wasn't the build, but the Peerless looked perfect. But it's up and running and sounds nice enough.


Attachments:
60ED2BDF-2644-4DFF-8EDB-52F9128EB6F4.jpeg
60ED2BDF-2644-4DFF-8EDB-52F9128EB6F4.jpeg [ 539.36 KiB | Viewed 9110 times ]
E80353C0-0E4C-4A91-AEC3-9B3C70E81ED0.jpeg
E80353C0-0E4C-4A91-AEC3-9B3C70E81ED0.jpeg [ 426.68 KiB | Viewed 9110 times ]


Last edited by Grover Gardner on March 19th, 2020, 9:26 am, edited 2 times in total.
Top
 Profile  
 
PostPosted: March 19th, 2020, 9:20 am 
Offline

Joined: June 4th, 2013, 2:39 pm
Posts: 487
Here are the after pics. That's a temporary umbilical for the Heathkit W2 power supply I used to work on it.


Attachments:
823E0873-4021-40B3-BA41-1FDB22FFE455.png
823E0873-4021-40B3-BA41-1FDB22FFE455.png [ 656.25 KiB | Viewed 9107 times ]
57B97EA1-CDEB-4916-A5EE-BBBC99DFC9D4.jpeg
57B97EA1-CDEB-4916-A5EE-BBBC99DFC9D4.jpeg [ 101.7 KiB | Viewed 9107 times ]
68ADAB86-6EFE-4199-8BBE-E25616CAD72E.jpeg
68ADAB86-6EFE-4199-8BBE-E25616CAD72E.jpeg [ 129.44 KiB | Viewed 9107 times ]
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 28 posts ]  Go to page 1, 2, 3  Next

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 30 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group