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Audio output pentodes valves with octal base

EL84 Genuine GEC N709 super rare welded plate Square getter EL84 6BQ5 made by the Marconi Osram GEC Ltd.

GEC N709 with welded plate £ 500 quartet

EL84 Marconi Osram MOV N709 British Made 6BQ5 rare valves etched code on glass rx1 B made at Blackburn

Marconi N709 £ 300 quartet

EL84 Mullard 6BQ5 Holy Grail FULL top getter very rare matched quartet code on glass 1608 L4

Mullard EL84 full top getter £ 400 quartet

EL84 Mullard 6BQ5 quartet valves tubes ‘Made in Great Britain’ code rx1

Mullard EL84 Made in Great Britain code rx1 £ 180 quartet

EL84 Mullard British Made heavy pins soldering 6BQ5 code on glass rx1 B made at Blackburn

Mullard EL84 British made £ 240 quartet

EL84 Mullard N709 6BQ5 Penta Logo code on glass km1 with original boxes

Mullard EL84 Penta Logo km1 code £ 150 quartet

EL84 Mullard old logo old print full round getter early 1950s 6BQ5 British Made code on glass rx1

Mullard EL84 top getter £ 400 quartet

EL84 Mullard special version on glass CV2975 KB/DA km rx1 on glass rare

Mullard CV2975 KB/DA £ 250 quartet

EL84 Mullard Square Getter 6BQ5 British Made at side of envelope code rx1 matched quartet

Mullard EL84 British Made £ 300 quartet