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 77 / CRP38077 $22.00 Raytheon 130% 1550 / 1225Gm NOS (ob) engraved base - four pillar tube - US Navy - box damaged
1 77 / CRP38077 $22.00 Raytheon 130% 1550 / 1225Gm NOS (ob) engraved base - four pillar tube - US Navy - box damaged
1 77 / CRP38077 $22.00 Raytheon 140% 1700 / 1225Gm NOS (ob) engraved base - four pillar tube - US Navy - box damaged
1 77 $15.00 Raytheon 120% 1500 / 1225Gm used (wb) engraved base - four pillar tube - torn label
1 77 $12.00 Raytheon 100% 1500 / 1225Gm used (rb) engraved base - four pillar tube - no label
1 77 $12.00 Raytheon 120% 1450 / 1225Gm used (rb) engraved base - four pillar tube - no label - loose glass inside
1 77 / VT-77 $6.00 National Union 120% 1400 / 1225Gm NOS (ob) US Army - JAN - damaged box
1 77 / VT-77 $6.00 Raytheon 130% 1500 / 1225Gm NOS (wb) ---
1 77 / VT-77 $6.00 Raytheon 120% 1400 / 1225Gm NOS (wb) ---
1 77 / VT-77 $6.00 Raytheon 130% 1500 / 1225Gm NOS (wb) ---
1 77 / VT-77 $6.00 Raytheon 130% 1400 / 1225Gm NOS (wb) ---
1 77 $6.00 RCA / Cunningham 110% 1350 / 1225Gm NOS (wb) engraved base
1 77 $6.00 Tung-Sol 110% 1250 / 1225Gm NOS (OB) engraved base - cat:402-289
1 77 $6.00 National Union 110% 1250 / 1225Gm NOS (OB) engraved base
1 77 $6.00 Ken-Rad 110% 1350 / 1225Gm NOS (wb) engraved base
1 77 $5.00 RCA 120% 1300 / 1225Gm NOS (OB) ---
1 77 $5.00 Tung-Sol 110% 1400 / 1225Gm NOS (wb) ---
1 77 $5.00 Tung-Sol 120% 1350 / 1225Gm NOS (wb) ---
1 77 $5.00 Tung-Sol 100% 1250 / 1225Gm NOS (OB) ---
1 77 $5.00 Tung-Sol 130% 1550 / 1225Gm NOS (OB) cat:401-479
1 77 $5.00 Tung-Sol 115% 1250 / 1225Gm NOS (ob) US Army - damaged box
1 77 $5.00 Tung-Sol 130% 1300 / 1225Gm NOS (ob) US Army - damaged box
1 77 $5.00 Tung-Sol 115% 1250 / 1225Gm NOS (OB) US Navy - damaged box
1 77 $5.00 Tung-Sol 120% 1250 / 1225Gm NOS (OB) US Navy
1 77 $5.00 Tung-Sol 125% 1350 / 1225Gm NOS (OB) US Navy
1 77 $5.00 Tung-Sol 125% 1350 / 1225Gm NOS (OB) US Navy
1 77 $5.00 Cunningham 120% 1450 / 1225Gm NOS (OB) ---
1 77 $5.00 Sylvania 115% 1350 / 1225Gm NOS (OB) ---
1 77 $5.00 Sylvania 125% 1300 / 1225Gm NOS (OB) ---
1 77 $5.00 Sylvania 110% 1255 / 1225Gm NOS (OB) sealed in box
1 77 $5.00 Sylvania 100% 1100 / 1225Gm NOS (OB) sealed in box - cat:403-105
1 77 $5.00 Sylvania 135% 1450 / 1225Gm NOS (OB) ---
1 77 $5.00 Sylvania 125% 1400 / 1225Gm NOS (wb) ---
1 77 $5.00 Sylvania 110% 1500 / 1225Gm NOS (wb) ---
1 77 $5.00 GE 120% 1300 / 1225Gm NOS (OB) ---
1 77 $5.00 GE 120% 1300 / 1225Gm NOS (OB) damaged box
1 77 $5.00 GE 115% 1250 / 1225Gm NOS (OB) damaged box
1 77 $5.00 GE 130% 1300 / 1225Gm NOS (OB) sealed in box
1 77 $5.00 Westinghouse 120% 1400 / 1225Gm NOS (OB) ---
1 77 $5.00 Delco 120% 1550 / 1225Gm NOS (OB) ---
1 77 $5.00 National Union 130% 1500 / 1225Gm NOS (OB) ---
1 77 $5.00 National Union 110% 1450 / 1225Gm NOS (OB) ---
1 77 $5.00 National Union 120% 1500 / 1225Gm NOS (OB) ---
1 77 $5.00 National Union 140% 1400 / 1225Gm NOS (OB) ---
1 77 $5.00 National Union 120% 1500 / 1225Gm NOS (OB) ---
1 77 $5.00 National Union 130% 1600 / 1225Gm NOS (OB) ---
1 77 $5.00 National Union 120% 1450 / 1225Gm NOS (OB) ---
1 77 $5.00 National Union 120% 1400 / 1225Gm NOS (OB) ---
1 77 $5.00 National Union 130% 1500 / 1225Gm NOS (OB) ---
1 77 $5.00 National Union 130% 1600 / 1225Gm NOS (OB) ---
1 77 $5.00 National Union 130% 1400 / 1225Gm NOS (OB) cat:312-66
1 77 $5.00 National Union 130% 1300 / 1225Gm NOS (OB) sealed in box
1 77 $5.00 Wizard 110% 1300 / 1225Gm NOS (wb) ---
1 77 $5.00 Ken-Rad 120% 1400 / 1225Gm NOS (OB) damaged box
1 77 $5.00 Ken-Rad 115% 1250 / 1225Gm NOS (OB) sealed in box
1 77 $5.00 Ken-Rad 110% 1250 / 1225Gm NOS (OB) damaged box
1 77 $5.00 Ken-Rad 120% 1350 / 1225Gm NOS (OB) sealed in box
1 77 $5.00 Ken-Rad 130% 1350 / 1225Gm NOS (ob) damaged box
1 77 $5.00 Ken-Rad 130% 1350 / 1225Gm NOS (wb) ---
1 77 $5.00 Ken-Rad 130% 1450 / 1225Gm NOS (wb) ---
1 77 $5.00 Ken-Rad 120% 1450 / 1225Gm NOS (wb) US Navy
1 77 $5.00 Ken-Rad for Western Electric 120% 1450 / 1225Gm NOS (ob) US Navy - damaged box
1 77 $5.00 Ken-Rad for Western Electric 120% 1400 / 1225Gm NOS (ob) US Navy - damaged box
1 77 $5.00 Ken-Rad for Bendix 120% 1350 / 1225Gm NOS (ob) US Army - damaged box
1 77 $5.00 Raytheon 120% 1350 / 1225Gm NOS (OB) ---
1 77 $5.00 Raytheon 120% 1500 / 1225Gm NOS (OB) ---
1 77 $5.00 Raytheon 115% 1350 / 1225Gm NOS (OB) ---
1 77 $5.00 Raytheon 110% 1225 / 1225Gm NOS (OB) sealed in box
1 77 $5.00 Raytheon 110% 1250 / 1225Gm NOS (OB) sealed in box
1 77 $5.00 Raytheon 130% 1450 / 1225Gm NOS (OB) sealed in box - damaged box
1 77 $3.50 RCA / Cunningham 100% 1200 / 1225Gm used (rb) engraved base
1 77 $3.50 RCA / Cunningham 110% 1350 / 1225Gm used (wb) engraved base
1 77 $3.50 RCA / Cunningham 100% 1250 / 1225Gm used (wb) engraved base
1 77 $3.50 Philco 110% 1300 / 1225Gm used (rb) engraved base
1 77 $3.00 RCA 110% 1300 / 1225Gm used (rb) US Navy
1 77 $3.00 RCA 105% 1250 / 1225Gm used (rb) US Navy
1 77 $3.00 RCA 105% 1250 / 1225Gm used (rb) ---
1 77 $3.00 RCA 110% 1350 / 1225Gm used (rb) ---
1 77 $3.00 Sylvania 120% 1250 / 1225Gm used (rb) ---
1 77 $3.00 Sylvania 115% 1250 / 1225Gm used (rb) ---
1 77 $3.00 National Union 110% 1150 / 1225Gm used (rb) ---
1 77 $3.00 National Union 100% 1250 / 1225Gm used (wb) ---
1 77 $3.00 Philco 105% 1300 / 1225Gm used (wb) ---
1 77 $3.00 GE 100% 1300 / 1225Gm used (ob) damaged box
1 77 $3.00 GE 120% 1250 / 1225Gm used (ob) damaged box
1 77 $2.50 RCA / Cunningham 95% 1150 / 1225Gm used (rb) engraved base
1 77 $2.50 Wards Super Airline 90% 1150 / 1225Gm used (rb) engraved base - black coat
1 77 $2.50 RCA 90% 1100 / 1225Gm used (rb) ---
1 77 $2.50 Sylvania 95% 1150 / 1225Gm used (ob) damaged box
1 77 $2.50 Raytheon 90% 1100 / 1225Gm used (L) ---
1 77 $2.50 Ken-Rad 90% 1200 / 1225Gm used (L) ---
1 77 $2.50 Sylvania 90% 1225 / 1225Gm used (L) ---
1 77 $2.50 Sylvania 90% 1100 / 1225Gm used (L) (pl)
1 77 $2.50 Tung-Sol 90% 1250 / 1225Gm used (L) ---
1 77 $2.50 National Union 95% 1150 / 1225Gm used (L) ---
1 77 $2.50 RCA / Cunningham 90% 900 / 1225Gm used (L) engraved base
1 77 $2.00 National Union 85% 1150 / 1225Gm used (L) engraved base
1 77 $2.00 Tung-Sol 85% 900 / 1225Gm used (L) ---
1 77 $2.00 Hytron 85% 1150 / 1225Gm used (L) ---
1 77 $2.00 RCA / Cunningham 85% 1050 / 1225Gm 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