• Year
  • 1946/1947
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 41883
    • Brand: Musaphonic

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Details
  • Changer (Record changer)
  • Power type and voltage
  • Alternating Current supply (AC) / 105 - 125 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6.5 inch = 16.5 cm
  • Power out
  • 3 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 304 - General Electric Co. GE;
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 16 x 10.4375 x 15.625 inch / 406 x 265 x 397 mm
  • Notes
  • Record Changer: GE P-1. Built-in Beam-a-scope antenna. Walnut cabinet.

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 18 = 1949 and before
  • Literature/Schematics (3)
  • General Electric Folder 1000M-PUB.NO. 175-59 for 1947.

 Collections | Museums | Literature

Collections

The model 304 is part of the collections of the following members.

 Forum

Forum contributions about this model: General Electric Co.: 304

Threads: 1 | Posts: 4

I recently started a full restoration of this classic radio.  Before the restoration, the radio was working, but I never let it run very long for fear of damaging components before recapping.

I swapped out all the usual suspects, including the electrolytic caps.  There's only 1 cap that hasn't been replaced (C20) a 1000v, but I don't think that this is the problem. (Just a guess)

What happens is that the radio works great as it warms up. I receive a strong signal and can tune the radio, but after 10 seconds, the sound starts to weaken and quickly is gone.  

I'm just looking for some guidance on what to be looking for (i.e. a tube problem or a resistor problem).  Any help is appreciated!

thanks.

craig.

 

 

Craig Vodnik, 20.May.13

Weitere Posts (4) zu diesem Thema.