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crosley: Ch= 63; 31

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Forum » Radios and other type of sets (Physics) etc. » MODELS DISPLAYED » crosley: Ch= 63; 31
           
Stuart Irwin
Stuart Irwin
 
AUS  Articles: 70
Schem.: 5083
Pict.: 1716
16.Nov.09 06:25

Count of Thanks: 4
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Hello all,

The tube line up and schematic for this radio appears to be for the model 31S not the 31. I have in my collection what I believe to be a model 31 with the following line up; 26 26 26 27 26 71A 80.  This matches the description of this model as a neutralised TRF. Although there is no model identification on my set I do have a copy of an advert for the model 31 which matches my set. Strangely Nostalgia Air does not list a model 31.  My set has a 240V transformer and would have been sold here in Australia originally.  Does anyone have further information on this radio?

Stuart

Thomas Albrecht
Thomas Albrecht
Officer
USA  Articles: 384
Schem.: 6679
Pict.: 682
16.Nov.09 08:54

Count of Thanks: 7
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Hi Stuart,

In my Crosley Radio Service Manual covering 1943 sets and earlier, both model 31 and 31-S are listed.

The tube lineup in my book for model 31-S is 24 24 27 27 45 45 80.  This is a TRF set and matches the tube lineup currently shown for model 31 here at RMorg.

The tube lineup for model 31 is 6K7GT 6A8GT 6SK7 6SQ7 6J5 6V6G 6V6G 6SQ7 6E5 5U4G.  Obviously this is a very different (superheterodyne) and much newer radio than yours.  The second 6SQ7 is for a microphone amplifier for a record cutting (recorder) device that is part of this radio.

It would be interesting to see your ad.  Perhaps Crosley used a different model numbering for some sets sold in Australia.

I see one pair of models in my book which is close to, but not identical to yours.  Models 41-A and 42 have the following lineup:  26 26 26 27 26 71A 71A 80.  It has a push-pull output, while it seems yours has a single ended output.

Even if we don't figure out what model yours is, I can see that we need to make some updates to the U.S. Crosley listings, since these models do not have complete or correct listings here at RMorg.

Best regards,

Tom

Stuart Irwin
Stuart Irwin
 
AUS  Articles: 70
Schem.: 5083
Pict.: 1716
16.Nov.09 23:24

Count of Thanks: 5
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Hi Tom,

Thanks for your reply.  Please find attached a copy of the advert from "Wireless Weekly" 7/11/30.  My model 31 and the speaker look identical to this (although sadly the pot metal parts are warped and broken or missing).  Perhaps it was a special model for export.

Regards,

Stuart

 

Attachments:

Thomas Albrecht
Thomas Albrecht
Officer
USA  Articles: 384
Schem.: 6679
Pict.: 682
17.Nov.09 17:52

Count of Thanks: 5
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Hi Stuart,

The advertisement you have posted certainly seems to confirm that Crosley used a different model number scheme for some export models.

I am sometimes surprised that manufacturers managed to end up having model numbers that were not unique to a specific set.  I noticed that Philco did the same thing in its early days, using the same model number for both a radio and an external speaker, just a few years apart, and both for U.S. models.  There is also some overlap in numbering between Canadian and U.S. Philco radio models, with the same number referring to different models in the two countries.

Tom

  
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