The Radionic series

X20
X40 old(?) version
X40
X40A
The early series
 
X24
X24C
X40 new(?) version
The Electric Kit
The Electric Control Kit
The later series

The Radionic series of kits were not originally made by Philips, but was sold under the Philips brand in the UK for a period in the early 1970s. I have a very incomplete knowledge of these kits, particularly the non-Philips ones. Though I know that the series predates the Philips involvement, the only kit I know of from this period is X30 from 1969.

The Philips series at one point consisted of the basic kits X20 Basic Electricity Kit and X40 Radio and Electronic Kit, and the X40A Amplifier Add-on Kit which could only be used in combination with X40. The book Fundamentals of Radio and Electricity was included in the X40A kit along with its main instruction book.

     X20     
   
 
X40A
 
 
     X40     
 

The diagram shows the kits in the early series; basic kits on grey background, expansions on white.

X40 also appears with a different, presumably later, box design. This design is shared by The X24 Electronic Kit and its expansion X24C Radio and Electronic Conversion Kit (the combination of which seems to equal X40), the unnumbered kits The Electric Kit and The Electric Control Kit and at least one non-Philips kit, The Photographic Kit.

The Electric Kit seems to cover much the same themes as X20, though with a different mounting system, and might have replaced this in the new series. Whether or not X40A or a replacement also existed in this series is uncertain.

 Electric 
   
 Electric 
 Control 
   
 
?
 
 
X24C
 
     X40     
 
     X24     
 

The diagram shows the kits in the later series; basic kits on grey background, expansions on white.

Instruction books

X20 manual X40 manual X40A manual Fundamentals of Radio and Electricity X24 manual X24C manual

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Tor Gjerde <i@old.no>