minerva: 452; Minerphon

ID: 314832
? minerva: 452; Minerphon 
15.Mar.13 11:52
185

John Geaney (CH)
Articles: 3
Count of Thanks: 10
John Geaney

I notice there are two variants of this model - one has 5 valves ( 2 x ECH21, EBL21, AZ21, EM4) -the other has six valves ( ECH21, 2 x EF22, EBL21, AZ21, EM4) the circuit diagram shown for this model is the 5 valve variant whereas the valve line-up shows the six valve version.   The six valve verison has a larger physical cabinet (and was much more expensive when launched).   I am working on this larger verison but cannot find a correct circuit diagram.   If anyone knows where such a diagram might be found it would be very helpful for me.

Many thanks, John

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 2
minerva: 452; Minerphon 
02.Apr.13 16:43
185 from 2576

Wolfgang Bauer (A)
Articles: 2488
Count of Thanks: 7
Wolfgang Bauer

Hallo John,

Please show us photos of your device. (Front, chassis, rear wall and name plate).
Then we can say more.
 
Regards WB.

 

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 3
minerva: 452; Minerphon 
02.Apr.13 17:45
196 from 2576

John Geaney (CH)
Articles: 3
Count of Thanks: 8
John Geaney

Thanks you Wolfgang,

 

Here are some photos.   Also details of the restore work are on my YouTube channel (Zone1242).  The set is now wokring but I would love to find a correct diagram to complete more detailed work on the set.

Best Regards,  John

 

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 4
Minerva 425 ? 
03.Apr.13 06:45
223 from 2576

Wolfgang Bauer (A)
Articles: 2488
Count of Thanks: 8
Wolfgang Bauer

Hello John,

I think your model is the ==> Minerva 455.
On the note in the device type is misspelled.
This is a transposed digits.
The numbers are reversed from 455 to 452.
 
Please enter your images to the model Minerva 455.
 
Regards WB.

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