MDB Ventures Radio 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 Radio Tubes
Qty
Avail
Tube
Type
Price
Each
Tube
Brand
Emission
Strength
Mutual
Conduct

Desc

Notes
1 25Z6-WGT $10.00 Chatham 115% / 115% --- NOS (OB) brown base - JAN
1 25Z6-WGT $6.00 Chatham 100% / 100% --- used (wb) JAN - brown base
1 25Z6-GT $2.50 Raytheon 110% / 110% --- NOS (OB) ---
1 25Z6-GT $2.50 Raytheon 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 Raytheon 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 Raytheon 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 Raytheon 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 Zenith 110% / 110% --- NOS (OB) ---
1 25Z6-GT $2.50 Sylvania 110% / 110% --- NOS (OB) yellow lettering
1 25Z6-GT $2.50 Sylvania 100% / 100% --- NOS (OB) yellow lettering - damaged box
1 25Z6-GT $2.50 Sylvania 100% / 100% --- NOS (OB) green lettering
1 25Z6-GT $2.50 Sylvania 100% / 100% --- NOS (OB) green lettering
1 25Z6-GT $2.50 National Union 110% / 110% --- NOS (OB) ---
1 25Z6-GT $2.50 National Union 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 National Union 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 National Union 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 National Union 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 National Union 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 National Union 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 National Union 100% / 100% --- NOS (OB) damaged box
1 25Z6-GT $2.50 National Union 100% / 100% --- NOS (OB) metal base band
1 25Z6-GT $2.50 National Union 100% / 100% --- NOS (OB) metal base band
1 25Z6-GT $2.50 GE 110% / 110% --- NOS (OB) white lettering
1 25Z6-GT $2.50 GE 100% / 100% --- NOS (OB) white lettering
1 25Z6-GT $2.50 GE 100% / 100% --- NOS (OB) white lettering
1 25Z6-GT $2.50 GE 100% / 100% --- NOS (OB) white lettering
1 25Z6-GT $2.50 GE 100% / 100% --- NOS (OB) white lettering
1 25Z6-GT $2.50 GE 100% / 100% --- NOS (OB) red lettering
1 25Z6-GT $2.50 GE 100% / 100% --- NOS (OB) red lettering
1 25Z6-GT $2.50 RCA 110% / 110% --- NOS (OB) silver lettering
1 25Z6-GT $2.50 RCA 100% / 100% --- NOS (OB) red lettering
1 25Z6-GT $2.50 RCA 110% / 110% --- NOS (OB) red lettering
1 25Z6-GT $2.50 RCA 120% / 120% --- NOS (OB) red lettering
1 25Z6-GT $2.50 RCA 100% / 100% --- NOS (OB) red lettering - missing box flap
1 25Z6-GT $2.50 Ken-Rad 100% / 100% --- NOS (OB) sealed in box
1 25Z6-GT $2.50 Ken-Rad 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 Philco 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 CBS 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 CBS / Hytron 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 Rauland 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 Rad-Tel 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 Dumont 100% / 100% --- NOS (OB) ---
1 25Z6-GT $2.50 Westinghouse 100% / 100% --- NOS (OB) ---
1 25Z6 $2.50 RCA 110% / 110% --- used (L) metal
1 25Z6-GT $1.00 GE 100% / 100% --- used (OB) white lettering
1 25Z6-GT $1.00 GE 100% / 100% --- used (OB) white lettering
1 25Z6-GT $1.00 GE 100% / 100% --- used (OB) white lettering
1 25Z6-GT $1.00 GE 100% / 100% --- used (OB) white lettering
1 25Z6-GT $1.00 GE 100% / 100% --- used (rb) white lettering
1 25Z6-GT $1.00 GE 100% / 100% --- used (rb) white lettering
1 25Z6-GT $1.00 GE 100% / 100% --- used (rb) white lettering
1 25Z6-GT $1.00 GE 100% / 100% --- used (wb) white lettering
1 25Z6-GT $1.00 RCA 100% / 100% --- used (OB) silver lettering
1 25Z6-GT $1.00 RCA 100% / 100% --- used (OB) silver lettering
1 25Z6-GT $1.00 RCA 100% / 100% --- used (OB) silver lettering
1 25Z6-GT $1.00 RCA 100% / 100% --- used (OB) rrd lettering
1 25Z6-GT $1.00 RCA 100% / 100% --- used (OB) red lettering
1 25Z6-GT $1.00 RCA 110% / 110% --- used (OB) red lettering
1 25Z6-GT $1.00 RCA 100% / 100% --- used (rb) silver lettering
1 25Z6-GT $1.00 RCA 100% / 100% --- used (wb) silver lettering
1 25Z6-GT $1.00 National Union 100% / 100% --- used (rb) ---
1 25Z6-GT $1.00 National Union 100% / 100% --- used (rb) JAN
1 25Z6-GT $1.00 Ken-Rad 100% / 100% --- used (rb) ---
1 25Z6-GT $1.00 CBS / Hytron 100% / 110% --- used (rb) ---
1 25Z6-GT $1.00 Rogers 100% / 100% --- used (rb) ---
1 25Z6-GT $1.00 Raytheon 100% / 100% --- used (rb) ---
1 25Z6-GT $1.00 Zenith 100% / 100% --- used (ob) ---
1 25Z6-GT $0.50 GE 90% / 95% --- used (rb) orange lettering
1 35Z4-GT $3.00 Hytron 120% --- NOS (OB) sealed in box
1 35Z4-GT $3.00 Hytron 120% --- NOS (OB) sealed in box
1 35Z4-GT $3.00 Hytron 120% --- NOS (OB) sealed in box
1 35Z4-GT $3.00 Hytron 115% --- NOS (OB) sealed in box
1 35Z4-GT $3.00 Hytron 120% --- NOS (OB) ---
1 35Z4-GT $3.00 Hytron 120% --- NOS (OB) ---
1 35Z4-GT $3.00 Hytron 120% --- NOS (OB) ---
1 35Z4-GT $3.00 Hytron 110% --- NOS (OB) missing box end
1 35Z4-GT $3.00 Hytron Bantam untested sealed in box NOS (OB) sealed in box
1 35Z4-GT $3.00 Raytheon 110% --- NOS (OB) damaged box
1 35Z4-GT $3.00 Raytheon 110% --- NOS (OB) ---
1 35Z4-GT $3.00 Raytheon 115% --- NOS (OB) sealed in box
1 35Z4-GT $3.00 Raytheon 110% --- NOS (OB) sealed in box
1 35Z4-GT $3.00 Raytheon 110% --- NOS (OB) sealed in box
1 35Z4-GT $3.00 Raytheon 120% --- NOS (OB) sealed in box
1 35Z4-GT $3.00 Raytheon 120% --- NOS (OB) sealed in box
1 35Z4-GT $3.00 Raytheon 120% --- NOS (OB) sealed in box
1 35Z4-GT $3.00 Raythoen 120% --- NOS (OB) sealed in box
1 35Z4-GT $3.00 Raythoen 120% --- NOS (OB) ---
1 35Z4-GT $3.00 Sylvania 120% --- NOS (OB) sealed in box - water damagaed box
1 35Z4-GT $3.00 Sylvania 120% --- NOS (OB) green lettering
1 35Z4-GT $3.00 Sylvania 120% --- NOS (OB) green lettering
1 35Z4-GT $3.00 Sylvania 120% --- NOS (OB) green lettering
1 35Z4-GT $3.00 Sylvania 110% --- NOS (OB) green lettering
1 35Z4-GT $3.00 National Union 120% --- NOS (OB) ---
1 35Z4-GT $3.00 National Union 120% --- NOS (OB) ---
1 35Z4-GT $3.00 National Union 110% --- NOS (OB) ---
1 35Z4-GT $3.00 National Union 110% --- NOS (OB) ---
1 35Z4-GT $3.00 Tung-Sol 120% --- NOS (OB) ---
1 35Z4-GT $3.00 Tung-Sol 120% --- NOS (OB) ---
1 35Z4-GT $3.00 RCA 120% --- NOS (OB) red lettering
1 35Z4-GT $3.00 Philco 120% --- NOS (OB) ---
1 35Z4-GT $3.00 Philco 110% --- NOS (OB) ---
1 35Z4-GT $3.00 Admiral 110% --- NOS (OB) ---
1 35Z4-GT $1.50 RCA 110% --- used (rb) silver lettering
1 35Z4-GT $1.50 Raytheon 110% --- used (rb) ---
1 35Z4-GT $1.50 Cunningham 115% --- used (rb) ---
1 35Z4-GT $1.50 Hytron 110% --- used (rb) ---
1 35Z4-GT $1.50 Tung-Sol 110% --- used (rb) ---
1 35Z4-GT $1.50 National Union 110% --- used (rb) ---
1 35Z4-GT $1.50 Firestone Air Chief by Ken-Rad 110% --- used (rb) metal base band

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, (TT)=Tall Tubular, (M)=Metal, (M7)=7pin miniature, M9=9pin miniature, (SM)=subminiature, 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 Radio 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