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   rec.audio.tubes      Tube-based amplifiers... that go to 11      52,877 messages   

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   Message 52,847 of 52,877   
   Peter Wieck to RFguy   
   Re: Console Amp ID kindly...   
   20 Apr 23 04:36:00   
   
   From: peterwieck33@gmail.com   
      
   On Wednesday, April 19, 2023 at 4:03:53 PM UTC-4, RFguy wrote:   
   > Not being able to post pics, I'll do my best to describe it:    
   >    
   > Stereo SE Amp, 1-8 pin octal & 1- 9 pin pre/driver tube per side, 9 pin 6   
   volt rectifier tube, 2 amp fuse, 3 rca inputs on separate 4 knob panel, small   
   round sticker on amp : '416' . Output transformers(161000-183 352112) look to   
   be 5w or better with    
   leads coming out presumably going to the speakers. Power transformer   
   (161000-238 352118) Multi section electrolytic can cap TVL4746 40uF 450v x3   
   and 50uF 50v.    
   > I'd like to find out the model #, and a schematic if it's out there, looks   
   like a good base for modding.    
   >    
   > Thanks in advance, Rob :)   
      
   It would be really nice to know the types of tubes involved.    
   6-volt, 9-pin (!) rectifier tube: 6754? 5993? EZ80? Other?    
   It would be really nice to know whether the OPTs have more than one tap.    
   You write that this is from a console - is there a brand on the console?    
   Do the transformers have open coils (paper showing), or metal end-bells?    
      
   Magnavox made variations of these amps in their uncounted thousands. And they   
   made them for many 'brands' other than their own. But so did Knight, Olsen,   
   and a bunch of others. So more detail is needed to even get close to any sort   
   of ID. In any case,    
   your best bet is to draw out the schematic for yourself before looking to mod   
   it. And note that these amps were designed to be as cheap as possible to   
   manufacture, not necessarily a bad thing, but you need to be aware that every   
   part and piece is being    
   driven to, or even a little beyond, its proper design limits.    
      
   Peter Wieck   
   Melrose Park, PA   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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