MDB Ventures Preoctal Radio Vacuum Tubes


MDB Ventures Home


Don't forget to visit our
Discount Bargain Packs
and
Bargain Bin
for more savings!



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 24 $10.00 Wizard 110% 1200 / 1000Gm ST - NOS (wb) cat:312-161
1 24A $20.00 Raytheon 125% 1300 / 1000Gm ST - NOS (wb) engraved base - four pillar tube - label missing
1 24A $12.00 Raytheon 100% 1200 / 1000Gm ST - used (wb) engraved base - four pillar tube - label missing
1 NU-24A $12.00 National Union 115% 1100 / 1000Gm ST - NOS (wb) engraved base
1 NU-24A $12.00 National Union 110% 1250 / 1000Gm ST - NOS (wb) engraved base
1 NU-24A $12.00 National Union 115% 1350 / 1000Gm ST - NOS (wb) engraved base
1 24A $10.00 RCA / Cunningham 130% 1400 / 1000Gm ST - NOS (wb) engraved base - cat:312-235
1 24A $10.00 RCA / Cunningham 110% 1150 / 1000Gm ST - NOS (wb) engraved base
1 24A $10.00 RCA / Cunningham 130% 1200 / 1000Gm ST - NOS (wb) engraved base
1 24A $10.00 Super Silvertone 110% 1200 / 1000Gm ST - NOS (wb) ---
1 24A $10.00 National Union 125% 1400 / 1000Gm ST - NOS (wb) ---
1 24A $10.00 Zenith 140% 1250 / 1000Gm ST - NOS (wb) ---
1 24A $5.00 National Union 110% 1100 / 1000Gm ST - used (rb) ---
1 24A $5.00 Tung-Sol 150% 1100 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA 120% 1100 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA 110% 1000 / 1000Gm ST - used (L) ---
1 24A $5.00 RCA / Cunningham 115% 1200 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Sylvania 140% 1500 / 1000Gm ST - used (L) green lettering
1 24A $2.50 Tung-Sol 90% 750 / 1000Gm ST - used (L) ---
1 24A $2.50 RCA / Cunningham 90% 900 / 1000Gm ST - used (L) engraved base
1 24A $2.50 RCA / Cunningham 90% 950 / 1000Gm ST - used (L) engraved base
1 24A $2.50 Philco 90% 850 / 1000Gm ST - used (L) engraved base
1 24A $2.50 Sylvania 90% 900 / 1000Gm ST - used (L) engraved base
1 24A $2.50 National Union 90% 900 / 1000Gm ST - used (L) ---
1 24A $2.50 National Union 90% 800 / 1000Gm ST - used (L) ---
1 24A $2.50 Super Silvertone 90% 1000 / 1000Gm ST - used (L) ---
1 24A $2.50 Wards Super Airline 90% 1000 / 1000Gm ST - used (L) engraved base
1 24A $2.50 Raytheon 90% 950 / 1000Gm ST - used (L) engraved base
1 24A $2.50 National Union 95% 1000 / 1000Gm ST - used (L) ---
1 24A $5.00 National Union 110% 1050 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Wizard 135% 1150 / 1000Gm ST - used (L) engraved base
1 24A $5.00 Wards Super Airline 115% 1100 / 1000Gm ST - used (L) ---
1 24A $5.00 Wards Super Airline 120% 1150 / 1000Gm ST - used (L) ---

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.


Go back to the TOP

Return to
Preoctal and Globe/Balloon Vacuum Tube List

Don't forget to visit our
Discount Bargain Packs
and
Bargain Bin Tubes
for more savings!


Gmail Users
Please read this note about incorrectly declared email as spam.
This can be an issue as well with other free email providers like Hotmail, AOL, and Yahoo.


MDB Ventures Home


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