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 34 $15.00 National Union 130% 1000 / 600Gm ST - NOS (OB) engraved base - bayonet pin on base
1 34 / VT-54 $10.00 Ken-Rad 110% 1000 / 600Gm ST - NOS (OB) ---
1 34 / VT-54 $10.00 Ken-Rad 110% 1050 / 600Gm ST - NOS (OB) US Army box - flap missing
1 34 / VT-54 $10.00 Ken-Rad 130% 1100 / 600Gm ST - NOS (ob) JAN damaged box
1 34 / VT-54 $10.00 Ken-Rad 115% 1050 / 600Gm ST - NOS (wb) JAN cat:401-486
1 34 / VT-54 $10.00 Sylvania 125% 900 / 600Gm ST - NOS (wb) ---
1 34 $8.00 Majestic 130% 1000 / 600Gm ST - NOS (ob) engraved base - damaged box
1 34 $8.00 RCA Radiotron 110% 1000 / 600Gm ST - NOS (wb) engraved base - cat: 401-489
1 34 $8.00 RCA / Cunningham 120% 1050 / 600Gm ST - NOS (wb) engraved base
1 34 $8.00 Coronado 120% 1000 / 600Gm ST - NOS (wb) engraved base
1 34 $8.00 Ken-Rad 130% 950 / 600Gm ST - NOS (wb) engraved base - cat:312-232
1 34 $8.00 Wards Super Airline 120% 1000 / 600Gm ST - NOS (wb) engraved base - cat:401-505
1 34 $8.00 Wards Super Airline 110% 1000 / 600Gm ST - NOS (wb) engraved base - cat:401-507
1 34 $8.00 Wards Super Airline 130% 1100 / 600Gm ST - NOS (wb) engraved base
1 34 $8.00 Wards Super Airline 120% 1050 / 600Gm ST - NOS (wb) engraved base
1 34 $7.50 Wards Super Airline 120% 1200 / 600Gm ST - NOS (wb) ---
1 34 $7.50 Wards Super Airline 140% 1050 / 600Gm ST - NOS (wb) cat:312-244
1 34 $7.50 Super Airline 125% 1100 / 600Gm ST - NOS (wb) engraved base - cat:401-508
1 34 $7.50 National Union 125% 1100 / 600Gm ST - NOS (OB) ---
1 34 $7.50 National Union 130% 1150 / 600Gm ST - NOS (rb) ---
1 34 $7.50 RCA Victor 120% 1100 / 600Gm ST - NOS (OB) ---
1 34 $7.50 RCA 125% 1100 / 600Gm ST - NOS (ob) ---
1 34 $7.50 RCA 110% 1000 / 600Gm ST - NOS (ob) ---
1 34 $7.50 RCA 125% 1050 / 600Gm ST - NOS (OB) sealed in box
1 34 $7.50 RCA 120% 950 / 600Gm ST - NOS (wb) ---
1 34 $7.50 RCA 130% 1150 / 600Gm ST - NOS (wb) US Navy - solid plate - cat:401-434
1 34 $7.50 GE 120% 1100 / 600Gm ST - NOS (wb) cat:32-91
1 34 $7.50 Ken-Rad 115% 950 / 600Gm ST - NOS (wb) ---
1 34 / VT-54 $5.00 Ken-Rad 100% 900 / 600Gm ST - used (wb) cat:401-506
1 34 / VT-54 $5.00 Ken-Rad 120% 1050 / 600Gm ST - used (rb) JAN
1 34 $4.00 RCA Radiotron 115% 1000 / 600Gm ST - used (rb) engraved base
1 34 $4.00 National Union 140% 1200 / 600Gm ST - used (rb) engraved base - bayonet pin on base - paint on tube
1 34 $4.00 Philco 120% 1100 / 600Gm ST - used (rb) engraved base
1 34 $4.00 RCA / Cunningham 115% 1100 / 600Gm ST - used (L) engraved base
1 34 $4.00 Super Airline 120% 1000 / 600Gm ST - used (L) engraved base
1 34 $4.00 Wards Super Airline 80% 550 / 600Gm ST - used (L) engraved base
1 34 $4.00 Wards Super Airline 140% 1000 / 600Gm ST - used (L) engraved base
1 34 $4.00 RCA / Cunningham 110% 110% 800 / 600Gm ST - used (L)
1 34 $4.00 RCA / Cunningham 100% 750 / 600Gm ST - used (L) engraved base
1 34 $4.00 RCA / Cunningham 110% 900 / 600Gm ST - used (L) engraved base
1 34 $4.00 RCA / Cunningham 120% 1000 / 600Gm ST - used (L) engraved base
1 34 $4.00 National Union 120% 1000 / 600Gm ST - used (L) engraved base
1 34 $3.00 Wards Super Airline 130% 1250 / 600Gm ST - used (rb) ---
1 34 $3.00 unknown 130% 1150 / 600Gm ST - used (rb) ---
1 34 $3.00 Delco 120% 1050 / 600Gm ST - used (L) ---
1 34 $3.00 RCA 120% 1000 / 600Gm ST - used (L) cat:312-246
1 34 $3.00 RCA 130% 950 / 600Gm ST - used (L) ---
1 34 $3.00 RCA 130% 800 / 600Gm ST - used (L) solid plate - US Navy - cat:401-472
1 34 $3.00 RCA Radiotron 110% 1000 / 600Gm ST - used (L) ---
1 34 $3.00 Wards Super Airline 120% 1050 / 600Gm ST - used (L) ---
1 34 $3.00 Wards Super Airline 110% 1150 / 600Gm ST - used (L) ---
1 34 $3.00 Cornado 110% 950 / 600Gm used (L) ---
1 34 $3.00 Super Air Castle 110% 900 / 600Gm ST - used (L) ---
1 34 $3.00 Ken-Rad 120% 1000 / 600Gm ST - used (L) cat:401-466
1 34 $3.00 Ken-Rad 130% 1000 / 600Gm ST - used (L) cat:401-517
1 34 $3.00 Ken-Rad 110% 750 / 600Gm ST - used (L) engraved base - cat:312-149
1 34 $3.00 Sylvania 120% 850 / 600Gm ST - used (L) engraved base - cat: 312-229
1 34 $3.00 Sylvania 105% 600 / 600Gm ST - used (L) engraved base - cat: 312-141
1 34 $2.00 Wards Super Airline 90% 500 / 600Gm ST - used (L) engraved base
1 34 $2.00 RCA / Cunningham 85% 500 / 600Gm ST - used (L) engraved base
1 34 $2.00 Sylvania 85% 850 / 600Gm 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.


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