CANADIAN MARCONI HOME ENTERTAINMENT -  MODELS 66 , 67 and 68 (Jubilee Series) 

Type: 7 tube, AC powered superheterodyne receiver
Circa: 1936
Price in first year of sale: $95.50

Frequency range:
Broadcast - 525 to 1750 KHz
Short Wave - 5.560 to 18 Mhz

Tube lineup: 2 x 6D6, 6A7, 6B7, 2 x 42, 80
Undistorted audio power:

66 - 3.2 watts
67 - 3.3 watts
68 - 3.3 watts

Maximum audio power:

66 -  4.5 watts
67 -  5.4 watts
68 - 5.4 watts

Speaker size: ?

Input power:

115 VAC 60 Hz 72 watts
115 VAC 50 Hz 74 watts

Cabinet: Tabletop
Dimensions: ?

066_01.jpg
Model 66. (Photo from the collection of Lew Magrish) 

MODEL 67

This is the console version of the Model 66 radio,
Circa: 1935
Price in first year of sale: $129.50

The model 67 is part of the Jubilee series of 1935 which included Model 66, 67 and 68. So named in honor of King George V Jubilee (Silver Anniversary) 25 years after taking the throne in 1910. He was Queen Elizabeth's II grandfather.

/067_01.jpg
Model 67 (Photo from the collection of Ken Walsh)

MODEL 68

 
Cabinet: Console

Electrically speaking, the Model 68 chassis differs slightly from the model 67 . The model 68 provides an overload indicator. It is a neon lamp which connects across a portion of the primary of the audio output transformer. When the voltage across this portion of the transformer rises to 70 volts, the lamp will glow. This corresponds to a power level of 1.5 watts.   If the volume is increased, the lamp will glow with more brilliance thus indicating that a satisfactory audio tome will not be produced.

Price in first year of sale $149.50



 
Contributors or References:

1) Canadian Marconi Service Manual - Volume 1
2) Tom   TWACHSEN@aol.com
3) http://www.radiomuseum.org/r/canadia_ma_66_ac.html
4) http://www.radioatticarchives.com/radio.htm?radio=8097
5) http://www.radiomuseum.org/r/canadia_ma_67_ac.html
6) http://www.radiomuseum.org/r/canadia_ma_68_ac.html
 
 

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Aug 12/15