Brimar 6SN7GT Black Glass Black Base - STC Oldsway England
Date: 03/06/07
Brimar CV1988 6SN7GT 1970s Black Glass Black Base 1 - STC Oldsway England
Date: 03/06/07
Brimar CV1988 6SN7GTY 1958 Round Getter Brown Micanol Base - STC Footscray England
Date: 01/18/07
Brimar CV1988 6SN7GTY Jan-Feb 1957 Square Getter Brown Micanol Base - STC Footscray England
Date: 01/18/07
Brimar CV1988 6SN7GTY Late 1957 Round Getter Brown Micanol Base - STC Footscray England
Date: 01/18/07
CBS 5692 Black Plate Brown Base - USA
Date: 12/08/03
CBS 6SN7GT 1955 Tall Bottle - USA
Date: 01/30/04
CBS Hytron JAN CHY 5692 1958 Brown Base - USA
Date: 07/05/03
GE 6SN7GT Silver Plate Short Bottle - USA
Date: 06/28/07
Ken-Rad 1940s 6SN7GT Black Glass 2 - USA
Date: 09/13/03
Ken-Rad 1940s 6SN7GT Black Glass 1 - USA
Date: 06/28/07
Ken-Rad 1940s JAN CKR 6SN7GT VT-231 Black Glass 1 - USA
Date: 10/22/03
Ken-Rad 1940s JAN CKR 6SN7GT VT-231 Black Glass 2 - USA
Date: 12/03/03
Ken-Rad 1940s US Navy 6SN7GT VT-231 Black Glass - USA
Date: 11/10/03
Ken-Rad 1940s VT-231 Black Glass - USA
Date: 11/10/03
Raytheon 1940s VT-231 JAN CRP 6SN7GT 4 - USA
Date: 03/16/05
Raytheon 1940s VT-231 JAN CRP 6SN7GT 1 - USA
Date: 12/03/03
Raytheon 1940s VT-231 JAN CRP 6SN7GT 2 - USA
Date: 10/22/03
Raytheon 1940s VT-231 JAN CRP 6SN7GT 3 - USA
Date: 03/16/05
Raytheon 6SN7GT Black Glass Black Glass - USA
Date: 11/08/03
Raytheon 6SN7WGT 1950s Short Bottle - USA
Date: 08/16/03
Raytheon 6SN7WGT JAN CRP 1950s Short Bottle 1 - USA
Date: 07/07/07
Raytheon 6SN7WGT JAN CRP 1950s Short Bottle 2 - USA
Date: 12/03/03
RCA 5692 1950s Black Plate Red Base 1 - USA
Date: 02/20/04
RCA 5692 1950s Black Plate Red Base 2 - USA
Date: 11/22/03
RCA 5692 1950s Black Plate Red Base GE Label - USA
Date: 07/07/07
RCA 6SN7GTA GTB and Sylvania 6SN7WGT Short Bottle Comparison - USA
Date: 07/07/07
RCA VT-231 1940s JAN CRC 6SN7GT 1 - USA
Date: 11/08/03
RCA VT-231 1940s JAN CRC 6SN7GT 2 - USA
Date: 01/04/04
RCA VT-231 1943 JAN CRC 6SN7GT - USA
Date: 01/30/04
Sylvania 6SN7GT 1940s JAN CHS Tall Bottle Silver Top Metal Base - USA
Date: 09/26/04
Sylvania 6SN7GT 1940s Tall Bottle - USA
Date: 03/31/05
Sylvania 6SN7GT 1940s Tall Bottle Silver Top - USA
Date: 10/18/03
Sylvania 6SN7GT 1940s Tall Bottle Silver Top Metal Base - USA
Date: 09/15/03
SYLVANIA 6SN7WGT 1950s JAN CHS Silver Top Short Bottle Brown Base 1 - USA
Date: 09/22/03
SYLVANIA 6SN7WGT 1950s JAN CHS Silver Top Short Bottle Brown Base 2 - USA
Date: 10/24/03
SYLVANIA 6SN7WGT 1956 JAN CHS Silver Top Short Bottle Brown Base - USA
Date: 09/26/04
SYLVANIA 6SN7WGTA 1950s Triangular Plates Silver Top Short Bottle Black Base 4 - USA
Date: 11/21/03
SYLVANIA 6SN7WGTA 1950s Triangular Plates Silver Top Short Bottle Black Base 5 - USA
Date: 10/24/03
SYLVANIA 6SN7WGTA 1950s JAN CHS Silver Top Short Bottle Brown Base 1 - USA
Date: 09/26/04
SYLVANIA 6SN7WGTA 1950s Triangular Plates Silver Top Short Bottle Black Base 1 - USA
Date: 08/13/04
SYLVANIA 6SN7WGTA 1950s Triangular Plates Silver Top Short Bottle Black Base 2 - USA
Date: 09/26/04
SYLVANIA 6SN7WGTA 1950s Triangular Plates Silver Top Short Bottle Black Base 3 - USA
Date: 11/21/03
SYLVANIA 6SN7WGTA 1960s JAN CHS Triangular Plates Short Bottle 1 - USA
Date: 06/28/07
SYLVANIA 6SN7WGTA 1960s JAN CHS Triangular Plates Short Bottle 2 - USA
Date: 03/25/04
SYLVANIA 6SN7WGTA 1965 JAN CHS Triangular Plates Short Bottle 1 - USA
Date: 06/30/03
SYLVANIA 6SN7WGTA 1965 JAN CHS Triangular Plates Short Bottle 2 - USA
Date: 06/28/07
Sylvania VT-231 1940s JAN CHS 6SN7GT Tall Bottle - USA
Date: 06/28/07
Sylvania VT-231 1940s JAN CHS 6SN7GT Tall Bottle Silver Top 2 - USA
Date: 03/23/04
Sylvania VT-231 1943 JAN CHS 6SN7GT Tall Bottle - USA
Date: 08/30/04
Sylvania VT-231 1944 JAN CHS 6SN7GT Tall Bottle 1 - USA
Date: 03/31/05
Sylvania VT-231 1944 JAN CHS 6SN7GT Tall Bottle 2 - USA
Date: 05/11/05
Tung-Sol 6SN7GT Round Plates Black Glass - USA
Date: 07/19/04
Tung-Sol 6SN7GTB 1960s Short Bottle Triangular Black Plates - USA
Date: 07/07/07
Tung-Sol VT-231 1940s JAN CTL 6SN7GT Round Plates Black Glass 2 - USA
Date: 07/07/07
Tung-Sol VT-231 1940s JAN CTL 6SN7GT Round Plates Black Glass 3 - USA
Date: 09/15/03
