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 224A $20.00 Silvertone 100% 1150Gm ST - used (L) engraved base
1 24 $7.50 Tung-Sol 110% 1150 / 1000Gm ST - used (L) engraved base - large perf plate
1 24 $7.50 Tung-Sol 120% 1200 / 1000Gm ST - used (L) engraved base - large perf plate
1 24 $7.50 Tung-Sol 115% 1050 / 1000Gm ST - used (L) engraved base
1 24 $7.50 Tung-Sol 135% 1150 / 1000Gm ST - used (L) engraved base
1 24 $7.50 Tung-Sol 120% 1150 / 1000Gm ST - used (L) engraved base - cat:401-442
1 24 $7.50 Tung-Sol 100% 1300 / 1000Gm ST - used (L) engraved base - cat:312-145 (pl)
1 24 $7.50 Tung-Sol 95% 1200 / 1000Gm ST - used (L) engraved base
1 24 $7.50 Tung-Sol 95% 1150 / 1000Gm ST - used (L) engraved base
1 24 $7.50 Tung-Sol 110% 1300 / 1000Gm ST - used (L) engraved base - large perf plate
1 24 $5.00 Arcturus 120% 1300 / 1000Gm ST - used (L) engraved base
1 24 $5.00 Arcturus 100% 1150 / 1000Gm ST - used (L) engraved base
1 24 $5.00 National Union 120% 1250 / 1000Gm ST - used (L) engraved base
1 24 $5.00 National Union 120% 1100 / 1000Gm ST - used (L) ---
1 24 $5.00 National Union 120% 1100 / 1000Gm ST - used (L) ---
1 24 $5.00 Wizard 100% 1200 / 1000Gm ST - used (L) cat:312-158
1 24A $5.00 Cunningham 120% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Cunningham 150% 1050 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 100% 1000 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 100% 1150 / 1000Gm ST - used (L) cat:312-180
1 24A $5.00 Sylvania 120% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Sylvania 110% 1150 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 130% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 110% 1150 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 110% 1250 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Sylvania 120% 950 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 120% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 120% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 110% 1150 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 100% 1000 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Sylvania 100% 850 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 140% 1250 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 130% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 Sylvania 120% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Sylvania 100% 1100 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 130% 1100 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 110% 1250 / 1000Gm ST - used (L) cat:312-154
1 24A $5.00 RCA / Cunningham 130% 1050 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 130% 1400 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 135% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 140% 1100 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 125% 1300 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 115% 1250 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 110% 1050 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 110% 1250 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 110% 1050 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 130% 1300 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 110% 1200 / 1000Gm ST - used (L) engraved base (pl)
1 24A $5.00 RCA / Cunningham 140% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 110% 1350 / 1000Gm ST - used (L) engraved base - cat:312-148
1 24A $5.00 RCA / Cunningham 140% 1250 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 140% 1250 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 140% 1300 / 1000Gm ST - used (L) engraved base - cat:32-31
1 24A $5.00 RCA / Cunningham 150% 1300 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 130% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 110% 1000 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 150% 1150 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA / Cunningham 140% 1400 / 1000Gm ST - used (L) engraved base
1 24A $5.00 RCA Victor 120% 1000 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA Victor 130% 1100 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA 130% 1000 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA 110% 900 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA 130% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA 110% 950 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA 140% 1250 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA 130% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA 130% 1050 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA 100% 1150 / 1000Gm ST - used (L) cat:312-234
1 24A $5.00 RCA 140% 1250 / 1000Gm ST - used (L) (pl)
1 24A $5.00 RCA 120% 1000 / 1000Gm ST - used (L) ---
1 24A $5.00 Super Silvertone 110% 1200 / 1000Gm ST - used (L) (pl)
1 24A $5.00 Super Silvertone 110% 1000 / 1000Gm ST - used (L) cat:32-41
1 24A $5.00 Super Silvertone 100% 1150 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Super Silvertone 120% 1200 / 1000Gm ST - used (L) (pl)
1 24A $5.00 Super Silvertone 100% 1050 / 1000Gm ST - used (L) ---
1 24A $5.00 Super Silvertone 100% 1050 / 1000Gm ST - used (L) cat:32-51
1 24A $5.00 Super Silvertone 95% 1100 / 1000Gm ST - used (L) (pl)
1 24A $5.00 Raytheon 115% 1250 / 1000Gm ST - used (L) ---
1 24A $5.00 Raytheon 130% 1250 / 1000Gm ST - used (L) ---
1 24A $5.00 Raytheon 105% 1200 / 1000Gm ST - used (L) (pl)
1 24A $5.00 National Union 105% 1100 / 1000Gm ST - used (L) ---
1 24A $5.00 National Union 100% 800 / 1000Gm ST - used (L) ---
1 24A $5.00 National Union 100% 950 / 1000Gm ST - used (L) engraved base - cat:32-721
1 24A $5.00 National Union 110% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 National Union 100% 900 / 1000Gm ST - used (L) ---
1 24A $5.00 National Union 110% 700 / 1000Gm ST - used (L) solid plate
1 24A $5.00 National Union 100% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 National Union 100% 1000 / 1000Gm ST - used (L) engraved base - cat:32-241
1 24A $5.00 National Union 120% 1200 / 1000Gm ST - used (L) (pl)
1 24A $5.00 National Union 120% 1150 / 1000Gm ST - used (L) engraved base
1 24A $5.00 National Union 125% 1450 / 1000Gm ST - used (L) ---
1 24A $5.00 National Union 115% 1100 / 1000Gm ST - used (L) engraved base
1 24A $5.00 National Union 100% 1150 / 1000Gm ST - used (L) engraved base
1 24A $5.00 National Union 120% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 National Union 115% 1100 / 1000Gm ST - used (L) ---
1 24A $5.00 National Union 110% 1100 / 1000Gm ST - used (L) ---
1 24A $5.00 National Union 100% 1000 / 1000Gm ST - used (L) engraved base
1 24A $5.00 National Union 100% 1100 / 1000Gm ST - used (L) ---
1 24A $5.00 National Union 115% 1000 / 1000Gm ST - used (L) ---
1 24A $5.00 National Union 125% 1200 / 1000Gm ST - used (L) (pl)
1 24A $5.00 National Union 140% 1300 / 1000Gm ST - used (L) engraved base
1 24A $5.00 National Union 110% 1050 / 1000Gm ST - used (L) engraved base
1 24A $5.00 National Union 100% 1300 / 1000Gm ST - used (L) engraved base
1 24A $5.00 National Union 110% 1350 / 1000Gm ST - used (L) engraved base
1 24A $5.00 National Union 100% 1200 / 1000Gm ST - used (L) engraved base - cat:32-21
1 24A $5.00 National Union 95% 1050 / 1000Gm ST - used (L) ---
1 24A $5.00 National Union 95% 1000 / 1000Gm ST - used (L) ---
1 24A $5.00 National Union 110% 1250 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Ken-Rad 125% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 Ken-Rad 110% 1100 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Ken-Rad 125% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 Ken-Rad 130% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 Ken-Rad 120% 1050 / 1000Gm ST - used (L) engarved base (pl)
1 24A $5.00 Ken-Rad 100% 1000 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Ken-Rad 100% 1250 / 1000Gm ST - used (L) cat:312-156 (pl)
1 24A $5.00 Wards Super Airline 140% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Wards Super Airline 125% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 Wards Super Airline 110% 1100 / 1000Gm ST - used (L) ---
1 24A $5.00 Wards Super Airline 110% 1100 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Wards Super Airline 100% 1000 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Wards Super Airline 120% 1150 / 1000Gm ST - used (L) ---
1 24A $5.00 Wards Super Airline 95% 1000 / 1000Gm ST - used (L) cat:402-22
1 24A $5.00 Philco 105% 1100 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Philco 110% 1100 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Philco 125% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 Philco 100% 1000 / 1000Gm ST - used (L) engraved base (pl)
1 24A $5.00 Philco 135% 1200 / 1000Gm ST - used (L) ---
1 24A $5.00 Philco 100% 1100 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Philco 100% 850 / 1000Gm ST - used (L) ---
1 24A $5.00 Philco 110% 1000 / 1000Gm ST - used (L) ---
1 24A $5.00 Philco 140% 1150 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Tung-Sol 140% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Tung-Sol 120% 1150 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Tung-Sol 120% 1300 / 1000Gm ST - used (L) large perf plate - engraved base (pl)
1 24A $5.00 Delta 100% 900 / 1000Gm ST - used (L) paint on tube
1 24A $5.00 GE 140% 1500 / 1000Gm ST - used (L) ---
1 24A $5.00 GE 120% 1100 / 1000Gm ST - used (L) ---
1 24A $5.00 GE 100% 1000 / 1000Gm ST - used (L) (pl)
1 24A $5.00 Delco 100% 1350 / 1000Gm ST - used (L) cat:312-135 - paint on tube
1 24A $5.00 unknown 125% 1000 / 1000Gm ST - used (L) ---
1 24A $5.00 unknown 110% 1000 / 1000Gm ST - used (L) ---
1 24A $5.00 Wizard 150% 1350 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Wizard 140% 1200 / 1000Gm ST - used (L) cat:402-3
1 24A $5.00 Triad 110% 1100 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Ceco 110% 1000 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Silvertone 110% 1000 / 1000Gm 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