Vintage Asylum

RE: For a mere 7700 dollars you can have some Magnavox amps.

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airtime

In Reply to: RE: For a mere 7700 dollars you can have some Magnavox amps. posted by Michael Samra on August 14, 2016 at 22:17:02

What's up with those coils of wires??

At such a bargain I should sell my stuff and buy maybe?

I had the Sherwood hookup up for an ENITRE day. Then I had to break it down to paint the room and entire house. But it was a good hour of listening!!!! That really is a wonderful stereo.

charles

Follow Ups:

RE: For a mere 7700 dollars you can have some Magnavox amps. - Tom Bavis 05:52:07 08/17/16 (0)
Magnavox used those to prevent VHF parasitic oscillations. Look in any transmitter that uses parallel connected output tubes and you'll see 'em, usually using a large carbon resistor as the winding form. If you DON'T use them when you parallel tubes, you may get some strange behavior...
RE: For a mere 7700 dollars you can have some Magnavox amps. - Michael Samra 11:35:03 08/15/16 (2)
Charlie
Those coils are made up to act as small inductors because when you wind wire like that,it creates inductance and that is used for various functions.

"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
- RE: For a mere 7700 dollars you can have some Magnavox amps. - airtime 12:45:57 08/15/16 (1)
  Wouldn't it be more accurate to buy a coil of exact known value.
  
  I know the formulas to calculate inductance but purchased coils always seem more "accurate" than a good home brew.
  
  Maybe I should make my own capacitors - ah!
  
  I've been eyeing a Marantz 250M for restoration. Do you do those?
  
  charles
  - RE: For a mere 7700 dollars you can have some Magnavox amps. - Michael Samra 23:38:21 08/15/16 (0)
    Not really because many times you can't find the values or they may not be that critical.The 5 or 6 turns of solid wire was a very common inductor and
    it's better to make your own.
    
    "For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
    - http://www.arrl.org/files/file/Technology/tis/info/pdf/97080 (Open in New Window)

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