3 - 6SN7GTB Vacuum Tubes
1 - Raytheon Uniline
1 - GE
1 - Tung-Sol
1 - 6SN7GT KEN-RAD 
All Tested on Philco 9200 Tester

This listing is for 3 - 6SN7GTB vacuum tubes and 1 - 6SN7GT.  There are 4 different manufactures (See below). All tubes have been tested on a Philco 9200 tube tester.  A small piece of painters tape has been attached to the base of the tubes showing tube test results.

The tubes will be described below from picture #1 going left to right.

#1
Tube label shows manufacturing by Raytheon Uniline. The tube has "Made in USA" and "M24" on the base. This tube tested 77/70.

Glass: clear.

Getter: Top "O".

Top mica: Round.


#2

Tube label shows manufacturing by GE. Tube has the numbers 63-39 & 188-5.  This tube  tested 80/80.

Base: black, label color white.

Glass: clear.

Plates: Grey.

Getter: Round, located on the side.

Top mica: round.


#3 (6SN7GT)

Tube label shows manufacturing by KEN-RAD. Tube has the markings JAN-CKR-6SN7GT, S4, and VT-231.  This tube  tested 62/54.

Base: black, label color white.

Glass: Smoked.

Plates: Unknown.

Getter: Unknown.

Top mica: Rectangular.


#4

Tube label shows manufacturing by Tun-Sol. Tube has the numbers 322MB3.  This tube  tested 78/78.

Base: black, label color white.

Glass: clear.

Plates: Black, "T" Shape.

Getter: Round, located on the Top.

Top mica: round


The 4 tubes will be carefully packaged and shipped in a cardboard box.  Shipping will be via USPS Ground Advantage, FedEx, or UPS and cost $6.50