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Raytheon 6SN7GT / VT-231 - matched pair

Raytheon 6SN7GT / VT-231 - matched pair
Price: $179.00
1 matched pair in stock
Item Number: 157
Manufacturer: RCA
The rare 1940s Raytheon VT-231 tubes in this precisely matched pair are military spec 6SN7GT type tubes. They have black plates with copper grid posts and bottom getters. The orange print on the bases has the Raytheon logo and reads "JAN-CRP-6SN7-GT VT-231." 
 
Both tubes tests as new with balanced sections and very low noise. They are matched for current draw (mA) and transconductance (Gm) on each diode section. Tubes ship in new white boxes with test results for each triode section.
 
These tubes are sold as a matched pair. Photo is of the actual tubes. Singles, when available, are listed as Item 155.

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The 1963 RCA 6SN7GTB tubes in this precisely matched pair have staggered black plates and bottom D getters. The red print on the bases has the RCA logo. Both tubes test as new with balanced sections.
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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.

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