• Year
  • 1946
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 109754
    • alternative name: Emerson Television

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • AC/DC-set / 105-125 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 504 Ch= 120029 [dial 180°] - Emerson Radio & Phonograph
  • Shape
  • Tablemodel without push buttons, Mantel/Midget/Compact up to 14
  • Notes
  • BC Band Tuning Range: 540-1620kHz. Built-in loop antenna. Chassis No.120029 has a 180° dial. Striped walnut or mahogany veneer cabinet, waterfall construction, clear plastic grille.
  • Circuit diagram reference
  • Rider's Perpetual, Volume 15 = 1947 and before

 Collections | Museums | Literature

Collections

The model 504 is part of the collections of the following members.

 Forum

Forum contributions about this model: Emerson Radio &: 504 Ch= 120029

Threads: 1 | Posts: 4

I am recapping an Emerson 504 180-degree dial face tube radio. I am replacing C19 which looks like it reduces mains hum on the output tube. This cap has an isolation coil on it. 0.2 mfd 200 WV Capacitor. Picture Link HERE.

My questions are:

1) How close in mfd does this have to match as 0.2 is not on hand, have 0.25 mfd. 650WV

2) Should this be a safety cap?

3) What should I do with the coil? 

4) Do I need to find the outside foil on this one as the use case seems to need more isolation? 

Thank you,

Jonathan Reed

Jonathan Reed, 28.Jan.24

Weitere Posts (4) zu diesem Thema.