MDB Ventures Preoctal Radio Vacuum Tubes


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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 Preoctal Tubes
Qty
Avail
Tube
Type
Price
Each
Tube
Brand
Emission
Strength
Mutual
Conduct

Desc

Notes
1 6C6 $7.50 National Union 120% 1300 / 1225Gm ST - NOS (OB) --
1 6C6 $7.50 National Union 125% 1350 / 1225Gm ST - NOS (OB) --
1 6C6 $7.50 National Union 115% 1300 / 1225Gm ST - NOS (OB) damaged box
1 6C6 $7.50 National Union 125% 1300 / 1225Gm ST - NOS (OB) --
1 6C6 $7.50 National Union 140% 1500 / 1225Gm ST - NOS (OB) --
1 6C6 $7.50 National Union 150% 1900 / 1225Gm ST - NOS (OB) --
1 6C6 $7.50 National Union 125% 1350 / 1225Gm ST - NOS (OB) --
1 6C6 $7.50 National Union 140% 1600 / 1225Gm ST - NOS (OB) --
1 6C6 $7.50 National Union 135% 1450 / 1225Gm ST - NOS (OB) --
1 6C6 $7.50 Philco 110% 1300 / 1225Gm ST - NOS (OB) sealed in box - damaged box
1 6C6 $4.00 International 130% 1400 / 1225Gm ST - used (rb) engraved base - cat:312-346
1 6C6 $4.00 Sylvania 150% 1500 / 1225Gm ST - used (ob) cat:403-65
1 6C6 $4.00 Sylvania 120% 1400 / 1225Gm ST - used (ob) damged box - cat:403-64
1 6C6 $4.00 Sylvania 130% 1400 / 1225Gm ST - used (ob) engraved base - damaged box
1 6C6 $4.00 Sylvania 110% 1300 / 1225Gm ST - used (OB) --
1 6C6 $4.00 RCA 120% 1350 / 1225Gm ST - used (ob) --
1 6C6 $4.00 Tung-Sol 110% 1300 / 1225Gm ST - used (ob) damaged box
1 6C6 $4.00 RCA 125% 1450 / 1225Gm ST - used (ob) damaged box
1 6C6 $4.00 Sylvania 120% 1400 / 1225Gm ST - used (wb) --
1 6C6 $4.00 RCA 130% 1600 / 1225Gm ST - used (wb) --

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, 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 preoctal 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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Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com