One (1) RCA 5Y3GT Balanced Rectifier Vintage Vacuum Tube AT1000 tNOS tested 1939 - 1966

This listing is for ONE full-wave rectifier vacuum tube in the straight-wall tube shape (sized just like a 6V6GT). It has a black base, black or grey plates, and one side, bottom, or top getter. This listing is for one RCA-made tube, which is a little more popular than the other brands right now. Other USA brands can be found in a separate listing at a discount. Some are branded RCA Victor, Cunningham, Motorola, rebranded for competitors like Tung-Sol, or even the venerable OEM Bell & Howell.

Your tube has been fully tested on an Amplitrex AT1000 with like new, NOS results. Here's what that means: to qualify for this listing, the forward voltage in the two sections must be balanced within 10% of each other, and that voltage must be between 43 and 53 Volts for both sections. Unbalanced and used-testing tubes are available in a separate listing at a significant discount.

This tube has a lot of sag compared to others in its family.   Of course, we always recommend using the tube that your amp was designed for.

The Amplitrex tests for gas, shorts, and leakage as well. The tube you receive is guaranteed against failure for 60 days after purchase.

OPTIONS:
Want a regular white box? $1 extra
Want the test results recorded on your box, too? $3 extra
Want two tubes that match one another within 2 Volts (about 6%)? $5 extra per tube
Want an ST-shaped coke bottle 5Y3G instead? $5 extra

Comfortable using a replaced guide pin? Save $1 (and get the replacement guide pin included, installed!)