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GE 5U4GB Rectifier Tube Gray Plate Tested on Hickok Good


Ad Type: For Sale | Location: Outside Cebu
| Views: | Comments: | 11 March 2023
"DESCRIPTION:

GE 5U4GB  Rectifier Tube Gray Plate Tested on Hickok Good

Some boxes are brittle, or have imperfections, starting to crumble if they are not salvageable will ship in a plain or different brand box 

 Please note: These tubes may be NOS or test NOS but will actually have a few hours of use from the manufacturer or due from testing from time to time on them. A truly NOS tube will have excellent getter flashing condition, no dirt/grime, usually in the original box, and no filament deposits and has never been tested. Please expect the tube to have a small amount of used

Since vacuum tubes were made 30 - 70 years ago New Old Stock or Used may have cosmetic evidence of age.  This includes poor print, oxidized pins, faint discoloration, or poorly box

TESTED IN A HICKOK 6000

1) Filament 2) checked for shorts, Leakage 3) Grid (Gas) 

4)  Emission Test = Good 

Result on

 Tube ( 2225/2500 µhmos ) Acceptable Value  Above 800+ 

Where 65% it fails 

AND

6) Life Test = Useful Life in Tube = 100%

Note: Rectifiers and Diode tubes do not have Transconductance values.

95% of the Emission Tube Testers Rectifiers and Diode Tubes a GOOD tube it stars above 30 to 50+ on the Red zone 

Please very important to interpret your tube tester if you have a any question on your, feel free to ask. 

Two testers are never the same.  So this shows what I get, and what you get may be slightly 10-15% different.

If I state any values they are for a guide only.

No guarantee is made that any tube will test to a specific value in the buyer's tube tester, most all tubes are tested on at least two tube testers

This because of the variation in line voltage, different bias, and circuits.

All tubes have passed the Gas and short tests.

Regulator, Ralay, Rectifiers and Diode tubes do not have Transconductance values.

 Shipping times

Domestic USPS First Class Mail: 3-7 Days, includes tracking

International USPS First Class Mail: 3-5 weeks but sometimes longer, without tracking

Please eBay shipping estimates is not Accurate

Request an Invoice or Ask 

International Buyers

Please Note:

Buyer is responsible for all taxes, duties, and import fees. Please contact your local customs office for costs. 

 Return Policy

Guarantee: 100%

Contact Us 

If you're in any way dissatisfied with your purchase, do not hesitate to contact us through ""MY MESSAGES"". We will do our best to solve it for you. We are committed to ensuring that you are completely satisfied with every transaction.

So Please DO contact us first to get a better solution before you would leave

 

A Negative   or Neutral  feedback."

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Tags: Plate, on, Hickok, Ge, GRAY, Good, Rectifier, Tube, 5U4GB, Tested
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