Preamp Tubes
snow
Posts: 4,337
For sale are a few preamp tubes.
1. Eight Raytheon 6SN7 tubes Black plate side D getter all dated Dec 1946 these all test between 120% to 140% of NOS tubes $20.00 per pair + $5.35 shipping.
2.Three Valvo slant ring getter 12AX7 short grey ribbed plates tubes, they test good in both sections on my Eico 667 tube tester Rare tubes a bargain at $100.00 shipped
3. Two Sylvania 12AU7A Black plate D getter tubes made in the 50's $40.00 +5.35 shipping.
4. One Tungsol 12AX7 long grey ribbed plate D getter made in the 50's test good in both sections on my Eico 667 tube tester $20.00 + $5.35 shipping
5.One RCA branded Mullard made in GT Britan 12AX7 Halo getter short grey plate tube $20.00 +$5.35 shipping
6. Two Sylvania 12AX7 short Black plate D getter ribbed plate tubes made in the 50's they test good in both sections on my Eico 667 tube tester $50.00 + $5.35 shippng
7. Eight CBS 12AX7A Long grey plate ribbed plate Halo getter tubes made in 1960 most of the print is gone from these because like an idiot I decided to give them a bath.they test good in both sections on my Eico 667 tube teste
r
$15.00 each
1. Eight Raytheon 6SN7 tubes Black plate side D getter all dated Dec 1946 these all test between 120% to 140% of NOS tubes $20.00 per pair + $5.35 shipping.
2.Three Valvo slant ring getter 12AX7 short grey ribbed plates tubes, they test good in both sections on my Eico 667 tube tester Rare tubes a bargain at $100.00 shipped
3. Two Sylvania 12AU7A Black plate D getter tubes made in the 50's $40.00 +5.35 shipping.
4. One Tungsol 12AX7 long grey ribbed plate D getter made in the 50's test good in both sections on my Eico 667 tube tester $20.00 + $5.35 shipping
5.One RCA branded Mullard made in GT Britan 12AX7 Halo getter short grey plate tube $20.00 +$5.35 shipping
6. Two Sylvania 12AX7 short Black plate D getter ribbed plate tubes made in the 50's they test good in both sections on my Eico 667 tube tester $50.00 + $5.35 shippng
7. Eight CBS 12AX7A Long grey plate ribbed plate Halo getter tubes made in 1960 most of the print is gone from these because like an idiot I decided to give them a bath.they test good in both sections on my Eico 667 tube teste
r
$15.00 each
Well, I just pulled off the impossible by doing a double-blind comparison all by myself, purely by virtue of the fact that I completely and stupidly forgot what I did last. I guess that getting old does have its advantages after all 
Comments
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Well, I just pulled off the impossible by doing a double-blind comparison all by myself, purely by virtue of the fact that I completely and stupidly forgot what I did last. I guess that getting old does have its advantages after all -
PM sent on the Sylvania 12AU7 black plate D getters
