Don't see what you need? Contact us. We have many more tubes that are not yet listed.
We also have new and good used tubes in most other numbers including preoctal, globe/balloon,
octal, loctal/loktal, miniature, subminature, metal, power, transmitter tubes and many more.
MDB Ventures Nuvistor Tubes
Qty Avail  Tube Type  Price Each  Tube Brand  Emission Strength  Mutual Conduct  Desc  Notes

1  2CW4  $5.00  RCA  120%    NOS (OB)  (N) Nuvistor
 1  2CW4  $5.00  Sylvania  110%    NOS (OB)  (N) Nuvistor
 1  2CW4  $5.00  Sylvania  120%    NOS (OB)  (N) Nuvistor
 1  2CW4  $5.00  Sylvania  110%    NOS (OB)  (N) Nuvistor
 1  2CW4  $5.00  TungSol  150    NOS (OB)  (N) Nuvistor
 1  2CW4  $5.00  Sylvania  130%    NOS (OB)  (N) Nuvistor
 1  2CW4  $5.00  Sylvania  130%    NOS (OB)  (N) Nuvistor
 1  2CW4  $5.00  GE  130%    NOS (OB)  (N) Nuvistor
 1  2DS4  $5.00  RCA  110%    NOS (OB)  (N) Nuvistor
 1  2DS4  $5.00  RCA  130%    NOS (OB)  (N) Nuvistor
 1  2DS4  $5.00  RCA  120%    NOS (OB)  (N) Nuvistor
 1  2DS4  $5.00  Westinghouse  120%    NOS (OB)  (N) Nuvistor
 1  2DS4  $5.00  Westinghouse  120%    NOS (OB)  (N) Nuvistor
 1  2DS4  $5.00  Westinghouse  115%    NOS (OB)  (N) Nuvistor
 1  2DS4  $3.00  GE  110%    used (OB)  (N) Nuvistor
 1  2DV4  $2.50  Zenith  120%    used (OB)  (N) Nuvistor
 1  2DV4  $2.50  Zenith  130%    used (OB)  (N) Nuvistor
 1  2DV4  $2.50  Zenith  110%    used (OB)  (N) Nuvistor
 1  2DV4  $2.50  Sylvania  120%    used (rb)  (N) Nuvistor
 1  2EG4  $5.00  RCA  110%    NOS (OB)  (N) Nuvistor
 1  2EG4  $5.00  RCA  110%    NOS (OB)  (N) Nuvistor
 1  2EG4  $5.00  Sylvania  120%    NOS (OB)  (N) Nuvistor
 1  2EG4  $2.00  RCA  90%    used (OB)  (N) Nuvistor
 1  2EG4  $3.00  RCA  105%    used (OB)  (N) Nuvistor
 1  6CW4  $20.00  GE  110%    NOS (OB)  (N) Nuvistor
 1  6CW4  $20.00  GE  110%    NOS (OB)  (N) Nuvistor
 1  6CW4  $20.00  GE  115%    NOS (OB)  (N) Nuvistor
 1  6CW4  $20.00  Westinghouse  110%    NOS (OB)  (N) Nuvistor
 1  6CW4  $20.00  Westinghouse  110%    NOS (OB)  (N) Nuvistor
 1  6CW4  $20.00  Westinghouse  120%    NOS (OB)  (N) Nuvistor
 1  6CW4  $20.00  Sylvania  120%    NOS (OB)  (N) Nuvistor
 1  6CW4  $20.00  Raytheon  110%    NOS (OB)  (N) Nuvistor
 1  6CW4  $20.00  ITT  110%    NOS (OB)  (N) Nuvistor
 1  6CW4  $20.00  ITT  110%    NOS (OB)  (N) Nuvistor
 1  6CW4  $20.00  ITT / Lindal  110%    NOS (OB)  (N) Nuvistor
 1  6CW4  $20.00  Triad  110%    NOS (OB)  (N) Nuvistor
 1  6CW4  $10.00  RCA  115%    used (wb)  (N) Nuvistor
 1  6CW4  $10.00  RCA  125%    used (rb)  (N) Nuvistor
 1  6CW4  $10.00  RCA  100%    used (OB)  (N) Nuvistor
 1  6CW4  $5.00  RCA  85%    used (rb)  (N) Nuvistor
 1  6CW4  $10.00  Sylvania  110%    used (OB)  (N) Nuvistor
 1  6DS4  $20.00  GE  130%    NOS (OB)  (N) Nuvistor
 1  6DS4  $20.00  GE  130%    NOS (OB)  (N) Nuvistor
 1  6DS4  $20.00  GE  120%    NOS (OB)  (N) Nuvistor
 1  6DS4  $20.00  GE  130%    NOS (OB)  (N) Nuvistor
 1  6DS4  $20.00  RCA  120%    NOS (OB)  (N) Nuvistor
 1  6DS4  $20.00  RCA  120%    NOS (OB)  (N) Nuvistor
 1  6DS4  $20.00  RCA  130%    NOS (OB)  (N) Nuvistor
 1  6DS4  $20.00  RCA  120%    NOS (wb)  (N) Nuvistor
 1  6DS4  $20.00  RCA  110%    NOS (wb)  (N) Nuvistor
 1  6DS4  $20.00  Westinghouse  130%    NOS (OB)  (N) Nuvistor
 1  6DS4  $20.00  Westinghouse  130%    NOS (OB)  (N) Nuvistor
 1  6DS4  $20.00  Zenith  130%    NOS (OB)  (N) Nuvistor
 1  6DS4  $20.00  RCA  untested  sealed  NOS (OB)  (N) Nuvistor  sealed in plastic bag
 1  6DS4  $20.00  RCA  120%    NOS (wb)  (N) Nuvistor
 1  6DS4  $20.00  RCA  120%    NOS (OB)  (N) Nuvistor
 1  6DS4  $20.00  GE  130%    NOS (OB)  (N) Nuvistor
 1  6DS4  $10.00  GE  110%    used (OB)  (N) Nuvistor  minor rust on tube
 1  6DS4  $10.00  RCA  120%    used (rb)  (N) Nuvistor
 1  6DS4  $10.00  RCA  120%    used (rb)  (N) Nuvistor
 1  6DS4  $10.00  RCA  105%    used (ob)  (N) Nuvistor
 1  6DS4  $10.00  RCA  110%    used (rb)  (N) Nuvistor
 1  6DS4  $10.00  RCA  120%    used (rb)  (N) Nuvistor
 1  6DS4  $10.00  Sylvania  140%    used (OB)  (N) Nuvistor
 1  6DS4  $10.00  Sylvania  120%    used (ob)  (N) Nuvistor
 1  6DS4  $8.00  unknown  130%    used (rb)  (N) Nuvistor
 1  6DS4  $8.00  Motorola  100%    used (rb)  (N) Nuvistor
 1  6DS4  $8.00  RCA  100%    used (rb)  (N) Nuvistor
 1  6DS4  $8.00  RCA  100%    used (rb)  (N) Nuvistor
 1  6DS4  $8.00  RCA  100%    used (rb)  (N) Nuvistor
 1  6DS4  $8.00  RCA  110%    used (rb)  (N) Nuvistor
 1  6DS4  $8.00  RCA  105%    used (rb)  (N) Nuvistor
 1  6DS4  $8.00  RCA  110%    used (rb)  (N) Nuvistor
 1  6DS4  $6.00  RCA  95%    used (rb)  (N) Nuvistor
 1  6DS4  $5.00  RCA  90%    used (rb)  (N) Nuvistor
 1  6DS4  $5.00  RCA  90%    used (rb)  (N) Nuvistor
 1  6DS4  $5.00  RCA  90%    used (rb)  (N) Nuvistor
 1  6DS4  $5.00  RCA  90%    used (rb)  (N) Nuvistor
 1  6DS4  $4.00  RCA  85%    used (rb)  (N) Nuvistor
 1  6DS4  $5.00  GE  90%    used (rb)  (N) Nuvistor
 1  6DV4  $5.00  RCA  90%    used (OB)  (N) Nuvistor
 1  6DV4  $5.00  Sylvania  85%    used (OB)  (N) Nuvistor
 1  7586  $10.00  RCA  90%    used (rb)  (N) Nuvistor
 1  7596  $10.00  RCA  90%    used (rb)  (N) Nuvistor
 1  7895  $5.00  RCA  100%    used (rb)  (N) Nuvistor
 1  7895  $5.00  RCA  130%    used (rb)  (N) Nuvistor
 1  7895  $5.00  RCA  110%    used (rb)  (N) Nuvistor
 1  8058  $25.00  RCA  110%    used (rb)  (N) Nuvistor
 1  8058  $18.00  RCA  100%    used leaky 1M ohm (rb)  (N) Nuvistor

Notes:
(OB) = original box, (rb) = relabeled/replacement box, (wb) = white box,
(L) = loose (no box), (pl) = paper label on tube (original or third party)
(H) = tested on Hickok 539A
(ST)=ST Style, (GT)=GT Style, (TT)=Tall Tubular, (M7)=7pin miniature, (M9)=9pin miniature,
(A)=Acorn, (N)=Nuvistor, (SM)=subminiature, JAN = Military
Emission Strength = Percentage of emission measured on Eico 666 tube tester
(Emission Strength = 100% baseline reference, >80%:good, >60%:fair >40%=diode good).
Gm = Mutual conductance measured on Hickok 533 tube tester; Except (H)=tested on Hickok 539A
(Gm = measured/baseline, measured1:measured2/baseline, measured1:measured2/baseline1:baseline2).
How To Order:
Purchasing our Nuvistor tubes is easy.
Just send us an email indicating the tubes (including quantities) you want.
We will let you know the total price including shipping and handling.
Shipping and Handling Information
Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com
Due to the highly volatile nature of the tube business, all Prices are subject to change without notice.
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