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Russian 5U4C / 5Z4GT
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unlimited in stock
Item Number: 2003
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This vintage Russian 5U4C (5Ц4С in Cyrillic script) rectifier is a 5Z4 equivalent. This slow-rise, indirectly-heated rectifier should be considered an upgrade for a 5Y3 tube in most circuits, and will drop slightly less voltage.
It has gray plates and a bottom dish getter. The silver print on the base has the OTK inspection stamp.
Tube tests as new. It ships in a new white box.
This tube is sold individually. Photo is a sample from the lot. |
This 1960s military spec Mullard CV2748 / GZ30 rectifier is a 5Z4 equivalent. This indirectly-heated rectifier should be considered an upgrade for a 5Y3 tube in most circuits. The Blackburn, UK factory code is etched in the glass. Tube tests as new.
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The 1960s military spec Mullard CV2748 / GZ30 rectifier tubes in this precisely matched pair are 5Z4 equivalents. These indirectly-heated rectifiers should be considered an upgrade for 5Y3 tubes in most circuits. Both tubes test as new.
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The vintage Russian 5U4C / 5Ц4С rectifiers in this precisely matched pair are 5Z4 equivalents. These indirectly-heated rectifiers should be considered an upgrade for 5Y3 tubes in most circuits, and will drop slightly less voltage. Both tubes test a
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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.
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