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 39 / 44 / VT-49 $10.00 Raytheon 120% 1300 / 1000Gm ST - NOS (OB) cat:312-332 sealed in box - for Western Electric for US Army
1 39 / 44 / VT-49 $8.00 Tung-Sol 120% 1200 / 1000Gm ST - NOS (OB) US Army - damaged box
1 39 / 44 / VT-49 $8.00 Tung-Sol 120% 1250 / 1000Gm ST - NOS (OB) US Army
1 39 / 44 / VT-49 $8.00 Tung-Sol 120% 1250 / 1000Gm ST - NOS (OB) US Army
1 39 / 44 / VT-49 $8.00 Tung-Sol 120% 1200 / 1000Gm ST - NOS (OB) US Army damaged box
1 39 / 44 $9.00 National Union 120% 1200 / 1000Gm ST - NOS (OB) engraved base
1 39 / 44 $9.00 National Union 100% 1000 / 1000Gm ST - NOS (OB) engraved base
1 39 / 44 $7.50 Philco 160% 1400 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Philco 140% 1500 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Philco 130% 1450 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Philco 115% 1200 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Philco 115% 1150 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Philco 120% 1200 / 1000Gm ST - NOS (OB) sealed in box - damaged box
1 39 / 44 $7.50 Philco 150% 1600 / 1000Gm ST - NOS (OB) sealed in box - damaged box
1 39 / 44 $7.50 Philco 115% 1250 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Philco 120% 1150 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Philco 125% 1250 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Philco 110% 1150 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Philco 130% 1350 / 1000Gm ST - NOS (OB) sealed in box - water damaged box
1 39 / 44 $7.50 Philco 120% 1300 / 1000Gm ST - NOS (wb) ---
1 39 / 44 $7.50 Philco 150% 1600 / 1000Gm ST - NOS (wb) ---
1 39 / 44 $7.50 RCA 130% 1350 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 120% 1200 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 140% 1450 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 130% 1350 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 120% 1300 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 130% 1400 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 130% 1400 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 130% 1350 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 125% 1200 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 120% 1250 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 125% 1300 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 125% 1400 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $4.50 RCA 120% 1300 / 1000Gm ST - NOS (OB) damaged box - end flap missing
1 39 / 44 $7.50 RCA 120% 1300 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 120% 1250 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 135% 1450 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 130% 1450 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 RCA 110% 1300 / 1000Gm ST - NOS (OB) cat:403-324
1 39 / 44 $7.50 Ken-Rad 130% 1350 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 130% 1350 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 120% 1250 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 140% 1500 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 130% 1350 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 Ken-Rad 120% 1300 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 130% 1400 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 125% 1400 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 115% 1200 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 110% 1250 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 130% 1400 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 120% 1300 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 110% 1200 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 125% 1300 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 130% 1400 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 125% 1300 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 120% 1300 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 120% 1300 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 120% 1300 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 120% 1250 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Ken-Rad 120% 1250 / 1000Gm ST - NOS (wb) ---
1 39 / 44 $7.50 Raytheon 120% 1300 / 1000Gm ST - NOS (OB) torn box flap
1 39 / 44 $7.50 Raytheon 120% 1250 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Raytheon 125% 1300 / 1000Gm ST - NOS (OB) sealed in box - cat:312-330
1 39 / 44 $7.50 Raytheon 140% 1400 / 1000Gm ST - NOS (OB) sealed in box - cat:312-343
1 39 / 44 $7.50 Raytheon 130% 1400 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Raytheon 130% 1300 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Raytheon 115% 1200 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Raytheon 140% 1400 / 1000Gm ST - NOS (OB) box damaged - cat:401-88
1 39 / 44 $7.50 Raytheon 140% 1400 / 1000Gm ST - NOS (OB) cat:312-373
1 39 / 44 $7.50 National Union 140% 1450 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 National Union 120% 1200 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 National Union 130% 1400 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 National Union 120% 1300 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 National Union 125% 1300 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 National Union 120% 1300 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 National Union 130% 1250 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 Sylvania 120% 1400 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Sylvania 110% 1200 / 1000Gm ST - NOS (OB) sealed in box
1 39 / 44 $7.50 GE 120% 1450 / 1000Gm ST - NOS (OB) sealed in box - damaged box
1 39 / 44 $7.50 GE 115% 1250 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 Hytron untested heater ok ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Hytron untested heater ok ST - NOS (OB) sealed in box
1 39 / 44 $7.50 Hytron 120% 1400 / 1000Gm ST - NOS (OB) sealed in box - damaged box
1 39 / 44 $7.50 Zenith 120% 1300 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 Zenith 130% 1300 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 Zenith 120% 1200 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 Zenith 125% 1300 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 Zenith 130% 1350 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $7.50 Tung-Sol 130% 1300 / 1000Gm ST - NOS (OB) ---
1 39 / 44 $4.00 Philco 100% 1000 / 1000Gm ST - used (ob) engraved base
1 39 / 44 $4.00 Philco 120% 1100 / 1000Gm ST - used (L) engraved base
1 39 / 44 $3.50 GE 130% 1400 / 1000Gm ST - used (ob) damaged box
1 39 / 44 $3.50 Super Silvertone 135% 1350 / 1000Gm ST - used (rb) ---
1 39 / 44 $3.50 RCA 130% 1350 / 1000Gm ST - used (rb) ---
1 39 / 44 $3.50 RCA 120% 1150 / 1000Gm ST - used (rb) ---
1 39 / 44 $3.50 Arcturus 125% 1350 / 1000Gm ST - used (ob) damaged box
1 39 / 44 $3.50 Sylvania 140% 1350 / 1000Gm ST - used (ob) green lettering

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