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100% GUARANTEED & TESTED TUBES
All tubes are tested for Gm, shorts, leaks, gas, and noise on one of our vintage, calibrated, or state of the art digital tube testers. Buy from the experts and avoid hassle!
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JJ Electronic Matched Quad (4) GZ34 / 5AR4 Rectifier Vacuum Tubes - Brand New
JJ is an undisputed leader in modern vacuum tube manufacturing, and for good reason. Among rectifier tubes, their 5AR4 (GZ34) is an industry favorite, as it provides consistent performance along with great build quality at a reasonable price point.
Precision Testing & Matching
Test Data on the Box
Power Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Plate Current (Ip) and General Mutual Transconductance (Gm) at real world voltages on a Maxi-Matcher tube tester.
Preamp Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Gain and General Mutual Transconductance (Gm) at real world voltages on a Maxi-Matcher Preamp II tube tester.
Rectifier Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Emissions on a calibrated Hickok TV-7 or Triplett 3444 tube tester.
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Shipping & Handling
We have a retail location located in Easthampton MA! You are more than welcome to pickup your order in person. Our typical hours are Monday - Friday 9:00 AM to 5:00 PM but we do offer extended hours so please call first!
Combined Shipping Policy
On vivatubes.com shipping is automatically calculated & combined shipping is built into our pricing.
On reverb.com combined shipping is not supported. If you want combined shipping, you will have to order your tubes elsewhere. We will not refund you the difference on reverb.com.
All orders before 1:00 PM EST ship same-day. All orders shipped within 1 business day.
On vivatubes.com Domestic & International buyers can choose USPS First Class Mail or USPS Priority Mail.
On reverb.com only one shipping option is supported. Domestic & International ordrs will be shipped via USPS First Class Mail.
Typical transit times:
Domestic USPS First Class Mail: 3-9 Days, includes tracking
Domestic USPS Priority Mail: 1-3 Days, includes tracking
International USPS First Class Mail: Typically 3-6 weeks but up to 3 months! - NO TRACKING
International USPS Priority Mail: 6-14 Days - Includes Tracking
International Shipping Disclaimer
International orders will be shipped by USPS First Class Mail International by default, which is the cheapest possible way and you do get what you pay for. This shipping service is very cost-effective and extremely safe, but you will not be able to track your package. It usually takes 3-6 weeks for a First Class Mail International package to arrive, but can take UP TO 3 MONTHS FOR DELIVERY DUE TO CUSTOMS, ESPECIALLY IN CERTAIN STRICT COUNTRIES LIKE RUSSIA, CHINA OR BRAZIL.
We guarantee all of our shipments, but we do ask that our customers wait 90 days before we grant a full refund due to a lost package. We have shipped thousands of items internationally using First Class Mail and while we have had plenty take several months to arrive but we have had less than 10 actual lost packages.
* Remember - You Have 6 Months of Coverage Through PayPal or your Credit Card company *
DEPENDING ON YOUR COUNTRY'S POLICIES, YOU MAY BE RESPONSIBLE FOR IMPORT TAXES WHEN ORDERING OVERSEAS FROM US. WE ARE NOT RESPONSIBLE FOR ANY TAXES, DUTIES, OR CUSTOMS FEES.
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