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Half wave and full wave rectifiers

GZ34 Mullard CV1377 military code Mullar5AR4 tall glass brown base KB/DA in original boxes tested 100%

Mullard CV1377 military version boxed NOS £ 350 pair

GZ34 Mullard full wave rectifiers boxed CV1377 5AR4 pair valves tested 100%

Mullard GZ34 F32 code with original boxes £ 160 pair

GZ34 Mullard large base British Made 5AR4 CV1377 code f31 B9E B9H Holy Grail tested 100% pair

Mullard GZ34 large base £ 350 pair

GZ34 Mullard large base pair same code on glass f31 B9E Holy Grail of rectification CV1377 5AR4 pair 100%

Mullard GZ34 large base £ 300 pair

GZ34 Mullard metal base Holy Grail 5AR4 code 51 6T super rare WELDED PLATE! pair tested 100%

Mullard GZ34 metal base welded plate £ 1200 pair

GZ34 Mullard old logo Made in Great Britain code f32 B jagged plate holed spigot all tested 100%

Mullard Old logo GZ34 £ 250 pair

Mullard Old logo Gz34 £ 400 quartet

GZ34 Mullard with metal base ultra rare Holy Grail CV1377 5AR4 tv1 and tv2 code pair tested 100%

Mullard GZ34 metal base code tv1 and tv2 £ 1,200 pair

GZ34 Mullard yellow print jagged plate code f32 B Blackburn Holy Grail CV1377 5AR4 all tested 100%

Mullard GZ34 Yellow print £ 250 pair

Mullard GZ34 Yellow print £ 475 quartet

GZ37 Mullard GZ37 white print made in Great Britain same code on glass IS1 B2A pair tested 100%

Mullard GZ37 with same code on glass £ 250 pair