Political Forums  

Go Back   Political Forums > Off-topic
Register FAQ Community Calendar Today's Posts Search

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #581  
Old 05-12-2012, 10:30 PM
Charles Charles is offline
Senior Member
 
Join Date: May 2009
Posts: 10,348
Quote:
Originally Posted by Oerets View Post
Another Saturday night here in the ''Ville" , listening to the local radio. WFPK and Little Steven Underground Garage then coming up the Rollings Stone Hour followed by the Blues Party.



No sense spinning tonight....



Barney
Well, I spun a few tonite in celebration of locating the hum problem I've been having with my Dynavector.

After replacing my Bellari with an Azur 640P which helped quite a bit, I finally went straight to the phono pre in my Van Alstine. Still had hum.

I was just about ready to ditch the Dynavector and go back to my Super 40, or my AT 440ML, but decided to try swapping the RCA cables first.

No more hum!!! I'll be trying the Bellari again, it is the best of the lot...especially with a RCA black plate installed.

Chas
Reply With Quote
  #582  
Old 05-13-2012, 11:02 AM
merrylander's Avatar
merrylander merrylander is offline
Resident octogenarian
 
Join Date: May 2009
Location: Maryland
Posts: 20,860
Lady Radnor Suite - William Boughton English String Orch.
__________________
Great minds discuss ideas; Average minds discuss events; Small minds discuss people.
Eleanor Roosevelt
Reply With Quote
  #583  
Old 05-13-2012, 02:58 PM
bobabode's Avatar
bobabode bobabode is offline
Admin
 
Join Date: Dec 2011
Location: Behind the Orange Curtain in California
Posts: 38,326
Quote:
Originally Posted by Charles View Post
Well, I spun a few tonite in celebration of locating the hum problem I've been having with my Dynavector.

After replacing my Bellari with an Azur 640P which helped quite a bit, I finally went straight to the phono pre in my Van Alstine. Still had hum.

I was just about ready to ditch the Dynavector and go back to my Super 40, or my AT 440ML, but decided to try swapping the RCA cables first.

No more hum!!! I'll be trying the Bellari again, it is the best of the lot...especially with a RCA black plate installed.

Chas
No Hum! Gotta love that, man. I'm listening to these old mono Magnavox amps pushing out 25 watts per amp. What's really cool is that they are pushpull for the low freq. and single ended for the highs. They work damn good with almost any speaker except the Vandies.
Reply With Quote
  #584  
Old 05-13-2012, 03:03 PM
bobabode's Avatar
bobabode bobabode is offline
Admin
 
Join Date: Dec 2011
Location: Behind the Orange Curtain in California
Posts: 38,326
Listening to Aqualung by Jethro Tull-

with the occasional B25 flying overhead.
I guess the Lyons Air Museum is making some bucks this weekend taking some folks up for rides. One of these days when my shoulder is on the mend I'm going to bite the bullet and take a ride. Hooorah!!
Reply With Quote
  #585  
Old 05-13-2012, 03:19 PM
Charles Charles is offline
Senior Member
 
Join Date: May 2009
Posts: 10,348
Quote:
Originally Posted by bobabode View Post
No Hum! Gotta love that, man. I'm listening to these old mono Magnavox amps pushing out 25 watts per amp. What's really cool is that they are pushpull for the low freq. and single ended for the highs. They work damn good with almost any speaker except the Vandies.
PP low end, SE high end? Didn't know they ever made such an animal.

Always wanted to try the SE amps, but have grown accustomed to PP. If anything, I'd probably be more interested in a hybrid at this stage of the game.

Chas
Reply With Quote
  #586  
Old 05-13-2012, 03:26 PM
Charles Charles is offline
Senior Member
 
Join Date: May 2009
Posts: 10,348
Quote:
Originally Posted by bobabode View Post
Listening to Aqualung by Jethro Tull-

with the occasional B25 flying overhead.
I guess the Lyons Air Museum is making some bucks this weekend taking some folks up for rides. One of these days when my shoulder is on the mend I'm going to bite the bullet and take a ride. Hooorah!!
I ALMOST pulled that one out of the stack last night, but went with Marshall Tucker instead.

Remember about thirty years ago when a 17 & a 24 came over us in formation while we were working for an old 17 pilot. Local air show.

Tried to talk "Bill", the old 17 pilot into going down and looking at them and all he had to say was, "I've seen enough of those motherfuckers to last me for a lifetime."

Chas
Reply With Quote
  #587  
Old 05-13-2012, 03:42 PM
d-ray657's Avatar
d-ray657 d-ray657 is offline
Loyal Opposition
 
Join Date: Oct 2009
Location: Johnson County, Kansas
Posts: 14,401
Pomp and Circumstance - KU Band

Saw the boy finally get his degree today (along with several thousand others). One down, one to go.

Here's how clueless I am. Nearly every department announced that they had candidates for the degree of "Doctor of Philosophy." I was thinking that it was strange that philosophers would be graduating from so many disciplines, until it dawned on me "DOH - PHD."

Regards,

D-Ray
__________________
Then I'll get on my knees and pray,
We won't get fooled again; Don't get fooled again
Reply With Quote
  #588  
Old 05-13-2012, 03:59 PM
finnbow's Avatar
finnbow finnbow is offline
Reformed Know-Nothing
 
Join Date: Oct 2009
Location: MoCo, MD
Posts: 26,552
Quote:
Originally Posted by d-ray657 View Post
Pomp and Circumstance - KU Band

Saw the boy finally get his degree today (along with several thousand others). One down, one to go.

Here's how clueless I am. Nearly every department announced that they had candidates for the degree of "Doctor of Philosophy." I was thinking that it was strange that philosophers would be graduating from so many disciplines, until it dawned on me "DOH - PHD."

Regards,

D-Ray
Congratulations, Juris Doctor.

I'm heading to Milwaukee next weekend for my daughter's graduation. That'll be 2 down, 1 to go.
__________________
As long as the roots are not severed, all will be well in the garden.
Reply With Quote
  #589  
Old 05-13-2012, 04:13 PM
d-ray657's Avatar
d-ray657 d-ray657 is offline
Loyal Opposition
 
Join Date: Oct 2009
Location: Johnson County, Kansas
Posts: 14,401
Quote:
Originally Posted by finnbow View Post
Congratulations, Juris Doctor.

I'm heading to Milwaukee next weekend for my daughter's graduation. That'll be 2 down, 1 to go.
Yes Master.

Regards,

D-Ray
__________________
Then I'll get on my knees and pray,
We won't get fooled again; Don't get fooled again
Reply With Quote
  #590  
Old 05-13-2012, 04:40 PM
bobabode's Avatar
bobabode bobabode is offline
Admin
 
Join Date: Dec 2011
Location: Behind the Orange Curtain in California
Posts: 38,326
Quote:
Originally Posted by Charles View Post
PP low end, SE high end? Didn't know they ever made such an animal.

Always wanted to try the SE amps, but have grown accustomed to PP. If anything, I'd probably be more interested in a hybrid at this stage of the game.

Chas
Magnavox had a few of these biamp models that they put out, mine are the 150 model made in 1957 for a mono console. I found two of them. It's all 6V6 power tubes.

The low freq. is actually paralell push pull (4 X 6V6 + 12AT7) and a single (6V6 + 6AV6) for the high freq. There's a volume control circuit on the high freq. that allows for easy control of the tweets, which makes it easily adjustable to a lot of different speakers.

The factory crossovers are set at about 1100hz. I just bypassed the speakers internal crossovers, actually the mids & tweets use the speakers internal Xover.

With the help of Gordon Waters over at AK I upgraded the power supply by replacing all of the electrolytics and bumped up the coupling caps (orange drops) and replaced all of the carbon comp resistors with carbon film resistors. Otherwise I left the Magnavox circuit alone and they are dead quiet.

I get a kick out of some of the younger cats touting their biamp set ups as the newest shizzle on the block. I just offhandedly tell 'em about this 1957 set up and their first objection is ,"Wait a minute, you do know Magnavox didn't have stereo consoles until years later!" I just tell 'em, "Well it's simple you've got to have two of them."

It's a gas to pop some guys bubble when they start with their condesending attitude about how their systems are the newest thing under the sun and that we old farts just don't get it. Heh, I've got about $200-$225 in parts in 'em including the original consoles + about 20 - 25 hours of my time into each of them. First pic is before I made the surrounds, I moved the on/off switches to the top[rather than keep them on the front once I made the wood bases. The base material is solid bamboo flooring I had left over from my place.
With the wood bases the labor was more like 70 hours total for the both of them. I left the three old can caps on there for looks. It was a hell of an intro into tube electronics for me. I had already rebuilt a couple of those Magnavox 175 push pull stereo amps but these were something else in comparison.
Attached Images
File Type: jpg amps 009.jpg (128.2 KB, 6 views)
File Type: jpg 150 amps2.jpg (39.5 KB, 7 views)
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 01:26 AM.



Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.