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Mullard CV2748 / GZ30 / 5Z4GT

Mullard CV2748 / GZ30 / 5Z4
Price: $44.00
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Item Number: 891GZ
Manufacturer: Mullard
This 1960s military spec Mullard CV2748 / GZ30 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, a bottom O getter, and a brown base. The white print on the glass reads "CV2748 KB/DA" and the Blackburn, UK factory code is etched in the glass.
 
Tube tests as new. It ships in its original box.
 
This tube is sold individually. Photo is a sample from the lot.

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Mullard CV2748 / GZ30 / 5Z4 - matched pair
Mullard CV2748 / GZ30 / 5Z4GT - matched pair
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Mullard CV2748 / GZ30 / 5Z4GT - matched pair
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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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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