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DAC90A repair

 
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 Till Eulenspiegel
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The non-reversible main connector.

DAC90 connector 3
DAC90 connector 2
DAC90 connector 1

Till Eulenspiegel.

 
Posted : 22/12/2019 11:18 am
Red_to_Black, Nuvistor, PYE625 and 6 people reacted
 Till Eulenspiegel
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It looks like the third pin on the connector is factory fitted.  The attachment shows the mains connector on another DAC90A.

DAC90 connector 4

Till Eulenspiegel. 

 
Posted : 22/12/2019 3:33 pm
 PYE625
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I wonder if that was introduced on later models, as mine certainly do not have it.

 
Posted : 22/12/2019 5:44 pm
 Till Eulenspiegel
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The DAC90A that started this topic was made in 1952.  The ivory set made was in 1955 and the set shown in this post was made in 1952 or 1953.

DAC90 connector 5

I do remember seeing these sets in the local radio shop in 1957 and in fact I believe production continued to 1959.

Till Eulenspiegel.

 

 
Posted : 23/12/2019 12:37 am
 Cathovisor
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@till

Production did carry on very late indeed - they appear listed in the ever-useful Trader year books certainly in 1958, and I have one with a serial number of over 240,000. As I don't have easy access to it I can't tell you if it has that modified mains inlet though, but it seems a very good idea as DC supplies slowly disappeared and the need for the inlet to be reversible disappeared with it.

A very long-lived design for Frank Middleditch, the cabinet designer.

 
Posted : 23/12/2019 12:44 pm
 Till Eulenspiegel
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Posted by: @cathovisor

A very long-lived design for Frank Middleditch, the cabinet designer.

I've always liked it when we can put a name to a particular design or development.     

Surprising that Bush resisted fitting more modern valves or a ferrite rod aerial.  Although stating that the Pye Piper P116 of 1957 employed U40 series valves.

Till Eulenspiegel.

 

 
Posted : 23/12/2019 9:31 pm
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