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History of the manufacturer  

Newmarket Transistors Ltd. Newmarket Suffolk.

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Name: Newmarket Transistors Ltd. Newmarket Suffolk.    (GB)  
Abbreviation: newmarket
Products: Tube manufacturer
Summary:

Created as a subsidiary of Pye in 1953. Continued manufacture until early 1960s.

Founded: 1953
Production: 1953 -
History:
Newmarket Transistors Ltd. with its logo NK was located in Newmarket, Suffolk. It was an entire Pye subsidiary for manufacturing germanium transistors in the 1950's and 1960's. "The Transistor Development Company" was formed in December 1953 to develop and manufacture small signal low frequency germanium transistors for use in portable radios. In 1957 the company name was changed to "The Newmarket Transistor Company" and in 1958, it was changed again to "Newmarket Transistors Ltd". Newmarket did not make any point-contact transistors, their first commercial products were junction types released in 1956. The earliest types of transistors had no branding at all, followed by naming them "Yellow Circle" araound 1960, followed by a number 1 to 5 - see Pye model Q4. The later ones showed the NKT prefix.

This manufacturer was suggested by Roy Johnson.


Some models:
Country Year Name 1st Tube Notes
GB  62 Newmarket Packaged Amplifier PC1   PC1, described as a "miniature, medium-impedance, high-gain general purpose audio amplifie... 
GB  62 Newmarket Packaged Amplifier PC2   PC2 is described as a "miniature low-impedance high-gain audio amplifier”. Same circuit as... 
GB  62 Newmarket Packaged Amplifier PC3   PC3 is described as a "miniature low-impedance high-gain audio amplifier”. Same circuit as... 
GB  62 Newmarket Packaged Amplifier PC7+12   PC7+12, described as a "miniature, medium-impedance, high-gain audio amplifier", 1 Wa... 
GB  62 Newmarket Packaged Amplifier PC9   PC9, described as a "high-to-low impedance matching amplifier". Specifications: ... 
GB  62 Newmarket Packaged Amplifier PC4   PC4 is described as a "miniature low-impedance high-gain audio amplifier”. Same circuit as... 
GB  62 Newmarket Packaged Amplifier PC5 [MK6]   PC5, described as a "miniature high-power medium-impedance high-gain audio amplifier", 3 W... 
GB  62 Newmarket Packaged Amplifier PC7+   PC7+, described as a "miniature, medium-impedance, high-gain audio amplifier", 1 Watt... 
GB  62 Newmarket Packaged Amplifier PC10   PC10, described as a "magnetic replay head amplifier". Specifications: I... 

[rmxhdet-en]

Further details for this manufacturer by the members (rmfiorg):

By courtesy of Andrew Wylie - Logo ab 1953 ?tbn_pye_nkt_1953_andrewwylie.jpg
By courtesy of Andrew Wylie - Logo 1953 ?tbn_nktlogo_1953_andrewwylie.jpg
By courtesy of Andrew Wylie - Logo ab 1958tbn_nktltd_1958_andrewwylie.jpg
Newmarket Packaged Amplifiers were also sold in Australia. Electronics Australia, Aug 1965 Page 79.tbn_aus_newmarket_electronics_australia_aug_1965_page_79.jpg

  
rmXorg