Antique Vintage & Retro Tube Radio and accessories sales. Quality restorations of Art Deco, Mid Century and Jet or Atomic Age sets. Bluetooth and aux inputs added. Now offering Bluetooth Drive In Speakers and repair.

Northern Electric Baby Champ Model B4104

 

Model B4104

The Model B4104 was electrically identical to the Model B4100. This model was the only battery-operated rainbow available in more than two cabinet colors. It was available in ivory, green, gold, blue, and rose. Visually, it differed from the Model B4100 with the substitution of a fan-shaped dial and one-armed pointer.

Tube Complement:

1. 1A7GT: Converter
2. 1N5GT: IF Amplifier
3. 1H5GT: 2nd Detector, AVC, 1st Audio Amplifier
4. 3Q5GT: Output Amplifier
Features of B4104 models:

1. The fan-shaped dial and one-armed pointer are used, but the part number (R8258-24) differs from the part number of fan-shaped dials used in some other models (R16127-24). This fan dial contains lettering and numerals that are thinner than those of the R16127-24 dial. In addition there is an extra dial marking at the 150 numeral that is not present on the R16127-24 dial. The R8258-24 dial is also found on Model 5104.

2. The Model B4104 does not sport the Baby Champ label on the back.

3. The back has three screw terminals: external antenna, ground, and phono input. Three decals are affixed on the back: license warning, battery connection/tube location, and 2 volt storage cell warning.

6. The back is attached to the chassis by two rivets. Two bottom back holes are left open.

 
Details:




R8258-24 Fan Dial

 

B4104 Back

 

B4104 Tube Location

 

B4104 License Warning
B4104 Voltage Warning

 

Examples:
Model B4104 (Col No 015): gold hammertone, ivory knobs, replacement dial cover. (Originally found as chassis only. Restored as per Northern Electric Service Bulletin RS 112-June 1947).

 

Model B4104 Radio Service Bulletin

Some collectors of Vintage, Retro or Antique radios, would like to hear more than just AM radio on their sets. Whether you prefer the purist approach, or don't mind altering them, in a reversible way, Retro Radio Shop has the exact accessories needed for you to hear Bluetooth and/or FM radio signals over your old gem.

If you value originality and would like a simple, stand alone product that will turn your radio into a Bluetooth receiver, without any installation or alterations, check out the Retro Radio Shop MicroMitter 

If you have some electronic experience, check out our DIY kits and Accessories pages.

We also perform repairs, safety and Bluetooth upgrades if your Baby Champ requires. Check out our Restoration and Repair page for more information.