59 Vintage 6SN7GTB Vacuum Tubes Tested -
$450 $350 shipped (in USA) - Off to Ebay
I am open to trade offers.There are various manufacturers in the group – Sylvania, Raytheon, General Electric, RCA and Westinghouse. A few are branded tubes (Baldwin, Philco, Silvertone and Reliable) that are made by one of these manufacturers.
I am selling a majority of these for a third party, but I did include a few tubes of my own that fit into this group.
Too many people play the "NOS" game, and I will never call something NOS unless (1) I have the original box (or I know for a fact that tubes were pulled from a bulk pack), (2) the tubes actually look unused as evidenced by the printing and pins (or there is a legitimate excuse for their appearance, such as the tube was stored under damp conditions), and (3) the tubes actually test like new. In the real world, that eliminates the vast (vast) majority of vintage tubes out there from NOS classification.
A small handful of the tubes might be NOS but, for the purposes of this ad, CONSIDER EVERYTHING USED.
All of these were tested on my Weston 981 III, which I find to be very reliable for transconductance measurements on small signal tubes. Min (65%) value is 840, making about 1300 "theoretical" 100% (Gm = 2X meter). For reference, a new production Electro-harmonix 6SN7EH tested at about 1500/1500. The results are as follows (sorry for the poor formatting here):
# Brand Date Test (min 840) Notes
1 Baldwin P28060-25C 1250/1300 Parallel black plate, halo getter Raytheon made
2 Baldwin P28060-25C 1225/1175 Parallel black plate, halo getter Raytheon made
3 Baldwin P28060-25C 1300/1350 Parallel black plate, halo getter Raytheon made
4 Baldwin P28060-01C 1350/1475 Parallel black plate, halo getter Raytheon made
5 Baldwin P28060-37C 950/1025 Paralllel black plate, halo getter Raytheon made
6 Baldwin P28060-37C 1000/1050 Parallel black plate, halo getter Raytheon made
7 Baldwin P28060-25C 1275/1275 Parallel black plate, halo getter Raytheon made
8 Baldwin P28060-25C 1250/1350 Parallel black plate, halo getter Raytheon made
9 Baldwin P28060-25C 1200/1225 Parallel black plate, halo getter Raytheon made
10 Baldwin P28060-25C 1300/1350 Parallel black plate, halo getter Raytheon made
101 Sylvania CH 1400/1300 Triangle plates, short base Yellow printing
102 Sylvania DF 1500/1550 Triangle plates, short base Yellow printing
103 Sylvania EA 1400/1400 Triangle plates, short base Yellow printing
104 Sylvania HF 1325/1275 Triangle plates, short base Yellow printing
151 Sylvania jm BHU 1450/1450 Triangle plates, short base Yellow printing
201 Sylvania 639 1425/1350 Triangle plates, short base Green printing
202 Sylvania 639 1550/1400 Triangle plates, short base Green printing
203 Sylvania 981 639 1350/1350 Triangle plates, short base Green printing
204 Sylvania 531 1550/1500 Triangle plates, short base Green printing
205 Sylvania 539 1375/1500 Triangle plates, short base Green printing
221 Sylvania 609 1300/1275 Triangle plates, short base Green printing, Tall bottle
301 Sylvania kf BUV 1375/1325 Triangle plates, short base Red printing
302 Sylvania AC AEJ 1350/1350 Triangle plates, short base Red printing
303 Sylvania ec AMD 1450/1350 Triangle plates, short base Red printing
304 Sylvania GD 1375/1400 Triangle plates, short base Red printing
305 Sylvania jm BJT 1400/1350 Triangle plates, short base Red printing
306 Sylvania fa ALM 1525/1550 Triangle plates, short base Red printing
401 Philco 312 5704 1200/1175 Triangle plates, short base Red printing, Sylvania made
402 Philco 312 5516 1275/1225 Triangle plates, short base Red printing, Sylvania made
421 Reliable 55-24 1200/1200 Triangle plates, full base Short bottle, Sylvania made
501 RCA BV 1350/1375 Offset plates, short base Taller bottle, newer red print
502 RCA BC 1500/1600 Offset plates, short base Taller bottle, red print
503 RCA BX 1400/1400 Offset plates, short base Taller bottle, red print
504 RCA AE 1375/1300 Offset plates, short base Taller bottle, red print
505 RCA BW 1450/1475 Offset plates, short base Taller bottle, red print
506 RCA NE 1300/1300 Offset plates, short base Taller bottle, red print
507 RCA AZ 1425/1425 Offset plates, short base Taller bottle, red print
521 RCA KI 1525/1550 Offset plates, full base Medium bottle, silver print
522 RCA ACS 1450/1400 Offset plates, full base Medium bottle, silver print
531 RCA KI 1400/1250 Offset plates, short base Medium bottle, side getter, silver print
532 RCA TAC 1550/1500 Offset plates, short base Medium bottle, side getter, silver print
533 RCA KH 1350/1350 Offset plates, short base Medium bottle, side getter, silver print
534 RCA KL 1475/1425 Offset plates, short base Medium bottle, side getter, silver print
551 RCA MT 1400/1350 Offset plates, full base Medium bottle, Red print
601 Raytheon C06 1500/1450 Parallel plate, side getter Short bottle, short base
602 Raytheon C12 1600/1500 Parallel plate, side getter Short bottle, short base
701 Westinghouse 337 7R43 1300/1400 Offset plates, full base Medium bottle
702 Westinghouse 337 7R39 1400/1475 Offset plates, full base Medium bottle
703 Westinghouse 337 7R35 1400/1450 Offset plates, full base Medium bottle
801 GE 56-43 1400/1300 Grey plate, side horseshoe getter Short bottle, full base
802 GE 59-04 1400/1350 Grey plate, side horseshoe getter Short bottle, full base
803 GE 57-09 1350/1350 Grey plate, side horseshoe getter Short bottle, full base
804 GE 56-09 1250/1200 Grey plate, side horseshoe getter Short bottle, full base
805 GE 56-17 1150/1150 Grey plate, side horseshoe getter Short bottle, full base
806 GE 57-30 1200/1100 Grey plate, side horseshoe getter Short bottle, full base, Silvertone
807 GE 61-30 1200/1250 Grey plate, side horseshoe getter Short bottle, full base
821 GE MT 1300/1250 Grey plate, side halo getter Short bottle, full base
822 GE ? 1400/1450 Grey plate, side halo getter Short bottle, full base, Green print
823 GE ? 1350/1300 Grey plate, side halo getter Short bottle, full base, Green Print
All tubes were clean for shorts and leakage.
I can provide additional information or pictures upon request.
GENERAL TERMS AND CONDITIONS – PLEASE READ CAREFULLY
Please note that these tubes are being sold 'AS IS', but I will guarantee against a material misdescription in the listing. In such event, I will refund purchase price less shipping upon return of the tubes in the same condition as sent.
PLEASE NOTE THAT I CANNOT GUARANTEE (OR EVEN REMOTELY PREDICT) HOW THESE TUBES WILL SOUND OR PERFORM IN YOUR EQUIPMENT. THE TEST RESULTS ARE ONLY PROVIDED AS AN INDICATION OF TUBE PERFORMANCE IN A VERY LIMITED (AND NON-IDEAL) ENVIRONMENT. OTHER THAN AS SET FORTH ABOVE, I EXPRESSLY DISCLAIM ANY LIABILITY WITH RESPECT TO THESE TUBES OR RESPONSIBILITY FOR YOUR USE OF THEM.
Money order/cashiers check/personal check preferred, but all (other than US Postal money orders) must clear my bank first. I also accept Paypal for convenience (but add 3% to the total for USA, and 4% to the total everywhere else).
Trade value might be considered, particularly for 6F8G, 7DJ8/PCC88, 7AF7, 7N7 (tall bottle only), 2A3 and 6922 vacuum tubes, as well as SACD and DVD-A discs. In any event, feel free to propose something (tubes or audio equipment) and I will at least consider it and respond.
Shipping in the USA via US Postal Priority Mail is included. If you are outside the USA, contact me for a shipping quote.
Please check my feedback on Audiogon, Videogon and Ebay (ID=baileyler) and buy with confidence.
