(!!!) (Best Value Single) EL84 Mullard England used/good 1963 (45.8ma)
(!!) (Single 1962) EL84 Mullard UK NOS (rX1-B2C3=1962) (39.6ma)
(!) (SINGLE) 6BQ5=EL84 Heath Mullard Great Britain used/good 1959 (40ma)
