One Tested 5Z3
National Union Audio Receiver Rectifier Vacuum Tube
Country
of origin: USA
Production
era: 1940s
Model:
5Z3
Manufacturer:
National Union
Type:
Rectifier
Plate
type: black ribbed
Base
type: UX 4 pin
Spacers:
One
Filaments:
hanging V
Getter
frame: rectangle wire
Getter
flash: base
Glass:
Clear
Stencils:
very good
Condition:
excellent
Original
carton: NA
Usage:
minimal
Quantity:
1
Please
review the photos for more detail
Test
results:
Strong balanced NOS results for Emissions: 44
/ 43
For Emissions, the suggested minimum value: 28
Shorts: None detected
For testing, a calibrated Triplett 3444A
tester was used
Compatibility: Suitable for vintage tube-based equipment ideal for use in tube amplifier power supplies and vintage audio / test equipment
The
tube will be carefully packed to ensure safe shipping
Estimated
delivery time within the USA is 3 to 7 business days
Standard
shipping service is US Postal 1st class
Shipping
is combined when applicable
Please feel free to contact us if you require any additional information