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Electro-Harmonix

New Matched Quad (4) Electro-Harmonix 5U4GB Vacuum Tubes

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SKU:
NP056-4
UPC:
844632064227
MPN:
Quad 5U4GBEH
Availability:
Ships in 1 business day or less.
Shipping:
Calculated at Checkout
$101.10

Out of stock

Description

New Matched Quad of Electro-Harmonix 5U4GB Vacuum Tubes

Modeled after the famous RCA black plate 5U4GB, this is one of the best rectifier tubes out today. This is the newer version with improved grid structure for more reliability and stable voltages. Compatible with any circuit that requires a 5U4, 5U4GB, 5U4GA or 5U4G tube.

Will work in place of: 5U4GBEH, 5U4GB, 5U4, 5U4GA, 5U4G, 5AS4A

Testing and/or Matching

At VIVA TUBES, all of our customers get the same high standard of testing and matching. Some sellers charge more for premium matches but we believe all of our customers should get the same level of quality and service. 

Tubes are tested and/or matched at full operating voltage with regulated power supply on a Maxi Matcher tester for general mutual transconductance (Gm). In addition, power tubes are tested/matched by plate current (Ip) and preamp tubes are tested/matched by gain. Rectifier tubes will be tested for emissions on a calibrated military grade tube tester. 

Our goal is to match within 5% with an upper limit of 15% (15% is the industry limit to consider a set).

Hand written test data included.

Note that we do offer a few models which are tested & matched at the factory. They will be matched by the same parameters (Ip & Gm) but to the manufacturer's standards. Factory testing will be indicated in the item title and description. 

Guarantee

We offer a minimum 90 day guarantee covering functional defects - including noise unless otherwise stated. The guarantee period begins the day you receive your order.

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Additional Information

reverb_offers:
off
reverb_model:
5U4GB, 5U4, 5U4GA, 5U4GB
reverb_condition:
Brand New
reverb_shipping_profile:
$21.99
reverb_upc_does_not_apply:
on
Item Type:
Vacuum Tubes
Production Era:
New/Current Production
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