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 38A $6.00 Arcturus 130% 1450 / 1050Gm ST - NOS (OB) damaged box
1 38 / VT-38 $6.00 Sylvania 120% 1300 / 1050Gm ST - NOS (wb) ---
1 38 / VT-38 $6.00 Sylvania 130% 1350 / 1050Gm ST - NOS (wb) ---
1 38 / VT-38 $6.00 Sylvania 140% 1450 / 1050Gm ST - NOS (wb) engraved base - US Navy 38038
1 38 / VT-38 $6.00 Sylvania 130% 15000 / 1050Gm ST - NOS (wb) engraved base - US Navy 38038
1 38 / VT-38 $6.00 Sylvania 120% 1350 / 1050Gm ST - NOS (OB) US Army
1 38 / VT-38 $6.00 Sylvania 120% 1300 / 1050Gm ST - NOS (OB) US Army
1 38 / VT-38 $6.00 Sylvania 110% 1300 / 1050Gm ST - NOS (OB) For Raytheon for US Army - sealed in box
1 38 / VT-38 $6.00 Sylvania 120% 1350 / 1050Gm ST - NOS (OB) For Raytheon for US Army - sealed in box
1 38 / VT-38 $6.00 RCA 130% 1450 / 1050Gm ST - NOS (OB) For Raytheon for US Army sealed in box
1 38 / VT-38 $6.00 RCA 120% 1450 / 1050Gm ST - NOS (OB) For Western Electric for US Army - sealed in box
1 38 / VT-38 $6.00 RCA 130% 1500 / 1050Gm ST - NOS (OB) For Western Electric for US Army - sealed in box
1 38 / VT-38 $6.00 RCA 130% 1500 / 1050Gm ST - NOS (OB) For Western Electric for US Army - damaged box
1 38 / VT-38 $6.00 RCA 130% 1450 / 1050Gm ST - NOS (OB) For Western Electric for US Army - sealed in box
1 38 / VT-38 $6.00 Hytron 110% 1300 / 1050Gm ST - NOS (OB) US Army - sealed in box
1 38 / VT-38 $6.00 Hytron 110% 1300 / 1050Gm ST - NOS (OB) US Army - damaged box
1 38 / VT-38 $6.00 Hytron 110% 1300 / 1050Gm ST - NOS (OB) US Army - sealed in box
1 38 / VT-38 $6.00 Hytron 110% 1200 / 1050Gm ST - NOS (OB) US Army - sealed in box
1 38 / VT-38 $6.00 Hytron 115% 1300 / 1050Gm ST - NOS (OB) US Army
1 38 / VT-38 $6.00 Raytheon 110% 1350 / 1050Gm ST - NOS (OB) For Western Electric for US Army - sealed in box
1 38 / VT-38 $6.00 Raytheon 110% 1250 / 1050Gm ST - NOS (OB) For Western Electric for US Army - sealed in box
1 38 / VT-38 $6.00 Raytheon 105% 1250 / 1050Gm ST - NOS (OB) For Western Electric for US Army - sealed in box
1 38 / VT-38 $6.00 Raytheon 110% 1400 / 1050Gm ST - NOS (OB) For Western Electric for US Army - sealed in box
1 38 / VT-38 $6.00 Raytheon 110% 1250 / 1050Gm ST - NOS (OB) For Western Electric for US Army - damaged box
1 38 / VT-38 $6.00 Raytheon 120% 1350 / 1050Gm ST - NOS (OB) For Western Electric for US Army - damaged box
1 38 / VT-38 $6.00 Raytheon 110% 1350 / 1050Gm ST - NOS (OB) For Western Electric for US Army - sealed in box
1 38 / VT-38 $6.00 Raytheon 130% 1500 / 1050Gm ST - NOS (OB) For Western Electric for US Army
1 38 $6.00 RCA / Cunningham 120% 1400 / 1050Gm ST - NOS (wb) engraved base
1 38 $6.00 Philco 130% 1500 / 1050Gm ST - NOS (OB) engraved base - sealed in box
1 38 $6.00 Philco 130% 1500 / 1050Gm ST - NOS (OB) engraved base - sealed in box
1 38 $6.00 Philco 120% 1450 / 1050Gm ST - NOS (OB) engraved base
1 38 $6.00 Philco 140% 1600 / 1050Gm ST - NOS (OB) engraved base - sealed in box
1 38 $5.00 National Union 140% 1600 / 1050Gm ST - NOS (wb) ---
1 38 $5.00 National Union 150% 1800 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 National Union 140% 1700 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 National Union 140% 1600 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 National Union 140% 1650 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 National Union 125% 1400 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 National Union 150% 1650 / 1050Gm ST - NOS (OB) box flap torn
1 38 $5.00 National Union 140% 1650 / 1050Gm ST - NOS (OB) sealed in box - water damaged box
1 38 $5.00 Sylvania 120% 1300 / 1050Gm ST - NOS (OB) damaged box
1 38 $5.00 Sylvania 115% 1300 / 1050Gm ST - NOS (OB) sealed in box - damaged box
1 38 $5.00 Sylvania 140% 1600 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 Sylvania 130% 1450 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 Raytheon 120% 1350 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 Raytheon 115% 1450 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 Raytheon 115% 1400 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 Raytheon 110% 1300 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 Raytheon 110% 1250 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 Raytheon 110% 1250 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 Raytheon 110% 1300 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 Raytheon 110% 1300 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 Raytheon 120% 1450 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 Philco 140% 1650 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 Philco 130% 1450 / 1050Gm ST - NOS (OB) damaged box
1 38 $5.00 Philco 130% 1600 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 GE 110% 1250 / 1050Gm ST - NOS (OB) sealed in box
1 38 $5.00 GE 110% 1200 / 1050Gm ST - NOS (OB) cat:403-102
1 38 $5.00 RCA 130% 1450 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 RCA 140% 1500 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 RCA 120% 1450 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 RCA 120% 1350 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 Tung-Sol 140% 1650 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 Tung-Sol 115% 1250 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 Tung-Sol 130% 1550 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 Zenith 120% 1350 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 Zenith 130% 1500 / 1050Gm ST - NOS (OB) damaged box
1 38 $5.00 Triad 120% 1400 / 1050Gm ST - NOS (OB) damaged box
1 38 $5.00 Admiral 120% 1500 / 1050Gm ST - NOS (OB) ---
1 38 $5.00 Ken-Rad 150% 1750 / 1050Gm ST - NOS (OB) ---
1 38 / VT-38 $4.00 RCA 130% 1500 / 1050Gm ST - used (L) ---
1 38 $3.00 Raytheon 105% 1250 / 1050Gm ST - used (ob) damaged box
1 38 $3.00 National Union 130% 1450 / 1050Gm ST - used (ob) ---
1 38 $3.00 Sylvania 120% 1450 / 1050Gm ST - used (ob) ---
1 38 $3.00 RCA 120% 1400 / 1050Gm ST - used (ob) damaged box
1 38 $3.00 RCA 125% 1500 / 1050Gm ST - used (rb) damaged box
1 38 $3.00 RCA 120% 1300 / 1050Gm ST - used (rb) ---
1 38 $3.00 Tung-Sol 130% 1600 / 1050Gm ST - used (ob) engraved base
1 38 $3.00 Philco 140% 1550 / 1050Gm ST - used (ob) engraved base
1 38 $3.00 Philco 130% 1450 / 1050Gm ST - used (L) engraved base
1 38 $3.00 Philco 120% 1400 / 1050Gm ST - used (L) engraved base
1 38 $3.00 RCA 140% 1500 / 1050Gm ST - used (L) ---
1 38 $3.00 RCA 100% 1250 / 1050Gm ST - used (L) ---
1 38 $3.00 RCA 120% 1350 / 1050Gm ST - used (L) ---
1 38 $3.00 RCA / Cunningham 100% 1200 / 1050Gm ST - used (L) engraved base
1 38 $3.00 RCA / Cunningham 100% 1250 / 1050Gm ST - used (L) engraved base
1 38 $3.00 Silvertone 130% 1500 / 1050Gm ST - used (L) engraved base
1 38 $3.00 Sylvania 135% 1450 / 1050Gm ST - used (L) engraved base
1 38 $3.00 Tung-Sol 120% 1600 / 1050Gm ST - used (L) ---
1 38 $2.50 RCA Radiotron 95% 1150 / 1050Gm ST - used (L) engraved base

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