Válvulas de Alfredo Meurer

Aeriotron Westinghouse WR	CG-1162
CX-330	De Forest Marconi ER Electron NOS 1919 - 1920
De Forest Marconi ER Electron Relay NOS 1919 - 1920	Kenotrons TB1 Clear glass and amber glass
Pliotrons CG-1162 Style VT-12 and VT-14 with Gold Glass	Pliotrons GE VT-13 Amber Glass
RCA-247 1st	RCA-864 (Right)
Rectron UX-213	Rectron UX-216-B and UX-281
Torvac Tube	UV-200 RCA evolution
UV-200 RCA right and UV-201 RCA left	UV-201 RCA evolution
UV-201A	UV-202 RCA and C-302
UX-201B by Westinghouse and RCA-221	UX-226 and UY-227
UX250 RCA and box	WD-11
WD-12

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