RCA 1950 6SN7GTgray glass vacuum tubesFor your consideration I have a superb matched pair of 1950 production RCA gray glass 6SN7GTs. Tubes codes are" "035" and "048" proving RCA manufacture just 13 weeks apart in 1950. Identical inte...70.00
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RCA 1950 6SN7GT gray glass vacuum tubes matched, ultra quiet [Expired]
For your consideration I have a superb matched pair of 1950 production RCA gray glass 6SN7GTs. Tubes codes are" "035" and "048" proving RCA manufacture just 13 weeks apart in 1950. Identical internally these tubes have gray glass, offset black ribbed thin plates and bottom "D" getters. This tube typifies the RCA "house" sound and is a rich sounding tube that has an ardent following.
Although these tubes were revceived without original boxes I see few if any signs of use. The tubes test as NOS, look NOS and are extremely rare in that they both are ultra quiet and non-microphonic. Guaranteed to be quiet and without microphonics in any application. A guess would be that only 20% of this type actually pass my PHONO test for N/M. Superb tube to tube and triode to triode mathing. These are true premium tubes!
TEST RESULTS: 2450/240 and 2350/2375 (Triplett 3444....minimum 1700gm), 79/80 and 79/80 (Cardmatic).
$ 75.00 for this pair
These tubes will be very carefully packed and shipped immediately upon receipt/verification of payment. Please read my feedback.
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