EL34 Valve In A Radio

[bobhowe]

I was surprised to learn that the EL34 was first introduced in 1949.  A development of the rare EL60 which had a B9G base. MO valve company came up with their version of the EL34, the KT77.                                           
  The Mullard EL37 is similar. https://www.radiomuseum.org/tubes/tube_el37.html
Before WW2 Mullard developed a similar valve the AL60 which has the old B7 base and a 4volt heater. More than ten years ago the AL60 or CV9 could be bought for a few pounds but  the Audiophools discovered it and now, like many other audio power valves commands a high price.
https://www.radiomuseum.org/tubes/tube_al60.html
Never seen the Alba radiogram with the single EL34 in the output stage.

The Pye Mozart delivers 10watts with a total harmonic distortion of 0.3 per cent @ 1Kc/s. Has three negative feedback loops.

Geordie McBoyne.

Hi the Pye Mozart is truly a well build British engineered amplifier and it sounds as good as it looks . I see the EL37 with the ST shape bulb are Audiophools money as well . Got a Mullard EL34 with the date code XF1 June 1951 made in the Philips Sittard factory in Holland ? what radio could be modified to use this valve ? kind regards Bob