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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, miniature, subminiature, metal, power, transmitter tubes and many more.

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

Desc

Notes
1 5Y3WGTA $15.00 Hytron 130% / 135% --- NOS (wb) US Navy - brown base
1 5Y3WGTA $12.00 Philips 100% / 100% --- NOS (OB) black base - JAN
1 5Y3GT $12.00 Cunningham 120% / 120% --- NOS (wb) cat:402-100
1 5Y3GT $12.00 Sylvania 110% / 115% --- NOS (wb) yellow lettering
1 5Y3GT $12.00 Sylvania 120% / 120% --- NOS (OB) yellow lettering
1 5Y3GT $12.00 Sylvania 120% / 120% --- NOS (OB) yellow lettering
1 5Y3GT $12.00 Sylvania 110% / 110% --- NOS (OB) yellow lettering
1 5Y3GT $12.00 Sylvania International 115% / 120% --- NOS (wb) green lettering
1 5Y3GT $12.00 National Electronics 115% / 115% --- NOS (wb) ---
1 5Y3GT $12.00 Channel Master 120% / 120% --- NOS (OB) ---
1 5Y3GT $12.00 Channel Master 120% / 120% --- NOS (wb) ---
1 5Y3GT $12.00 RCA 120% / 125% --- NOS (wb) red lettering
1 5Y3GT $12.00 RCA 130% / 135% --- NOS (OB) red lettering
1 5Y3GT $12.00 RCA 120% / 120% --- NOS (wb) silver lettering
1 5Y3GT $12.00 RCA 125% / 130% --- NOS (wb) silver lettering
1 5Y3GT $12.00 RCA 120% / 120% --- NOS (OB) red lettering
1 5Y3GT $12.00 GE 125% / 120% --- NOS (OB) white lettering
1 5Y3GT $12.00 GE 120% / 125% --- NOS (wb) red lettering
1 5Y3GT $12.00 GE 110% / 110% --- NOS (OB) white lettering
1 5Y3GT $12.00 GE 110% / 110% --- NOS (OB) white lettering
1 5Y3GT $12.00 GE 110% / 120% --- NOS (OB) white lettering
1 5Y3GT $12.00 GE 130% / 130% --- NOS (OB) white lettering
1 5Y3GT $12.00 Hit-Ray 130% / 130% --- NOS (OB) ---
1 5Y3GT $12.00 Hit-Ray 130% / 130% --- NOS (wb) ---
1 5Y3GT $12.00 Hit-Ray 130% / 130% --- NOS (wb) ---
1 5Y3GT $12.00 Hit-Ray 125% / 125% --- NOS (wb) ---
1 5Y3GT $12.00 Raytheon 120% / 120% --- NOS (OB) ---
1 5Y3GT $12.00 Raytheon 130% / 130% --- NOS (wb) ---
1 5Y3GT $12.00 Raytheon 130% / 130% --- NOS (wb) ---
1 5Y3GT $12.00 Raytheon 120% / 120% --- NOS (wb) ---
1 5Y3GT $12.00 Raytheon 130% / 130% --- NOS (OB) ---
1 5Y3GT $12.00 Raytheon 110% / 110% --- NOS (wb) ---
1 5Y3GT $12.00 Raytheon 110% / 110% --- NOS (wb) ---
1 5Y3GT $12.00 Raytheon 120% / 120% --- NOS (wb) ---
1 5Y3GT $12.00 CBS 120% / 120% --- NOS (OB) ---
1 5Y3GT $12.00 Motorola 120% / 120% --- NOS (wb) ---
1 5Y3GT $12.00 Motorola 125% / 125% --- NOS (OB) ---
1 5Y3GT $12.00 Silvertone 120% / 120% --- NOS (wb) ---
1 5Y3GT $12.00 Wards Super Airline 120% / 120% --- NOS (wb) ---
1 5Y3GT $12.00 Rogers 130% / 130% --- NOS (wb) ---
1 5Y3GT $12.00 Westinghouse 120% / 120% --- NOS (wb) Canada
1 5Y3GT $12.00 National Union 115% / 115% --- NOS (OB) missing box flap
1 5Y3GT $12.00 United Electron 110% / 110% --- NOS (OB) ---
1 5Y3GT $12.00 Arcturus 125% / 130% --- NOS (OB) ---
1 5Y3GT $12.00 Tung-Sol 120% / 120% --- NOS (OB) ---
1 5Y3GT $12.00 Tung-Sol 125% / 125% --- NOS (OB) ---
1 5Y3GT $12.00 Tung-Sol 130% / 130% --- NOS (OB) ---
1 5Y3GT $12.00 Zenith 140% / 140% --- NOS (wb) ---
1 5Y3GT $12.00 RCA 110% / 110% --- NOS (OB) silver lettering
1 5Y3GT $12.00 Westinghouse 120% / 120% --- NOS (OB) ---
1 5Y3GT $12.00 GE 110% / 115% --- NOS (OB) white lettering
1 5Y3GT $12.00 Sylvania 110% / 115% --- NOS (OB) silver lettering
1 5Y3WGTA $4.00 unknown 100% / 100% --- used (rb) brown base
1 5Y3WGT $5.00 Sylvania 90% / 90% --- used (wb) brown base - JAN
1 5Y3GT $5.00 unknown 115% / 120% --- used (L) brown base
1 5Y3GT $4.00 RCA 105% / 100% --- used (rb) silver lettering - brown base
1 5Y3GT $3.00 Sylvania 90% / 90% --- used (L) brown base
1 5Y3GT $2.00 Westinghouse 90% / 85% --- used (L) brown base
1 5Y3GT $5.00 Sylvania 115% / 115% --- used (rb) green lettering
1 5Y3GT $5.00 Sylvania 110% / 115% --- used (rb) green lettering
1 5Y3GT $5.00 Bell & Howell 110% / 110% --- used (rb) ---
1 5Y3GT $5.00 Motorola 110% / 110% --- used (rb) ---
1 5Y3GT $5.00 National Union 100% / 100% --- used (rb) ---
1 5Y3GT $5.00 RCA 120% / 110% --- used (L) silver lettering
1 5Y3GT $5.00 RCA 110% / 110% --- used (L) silver lettering
1 5Y3GT $5.00 RCA 110% / 110% --- used (L) red lettering
1 5Y3GT $5.00 RCA 115% / 120% --- used (L) red lettering
1 5Y3GT $5.00 GE 115% / 110% --- used (L) white lettering
1 5Y3GT $5.00 GE 110% / 110% --- used (L) white lettering
1 5Y3GT $5.00 Sylvania 110% / 120% --- used (L) green lettering
1 5Y3GT $5.00 Sylvania 110% / 110% --- used (L) green lettering
1 5Y3GT $5.00 Sylvania 110% / 110% --- used (L) yellow lettering
1 5Y3GT $5.00 Silvertone 110% / 110% --- used (L) ---
1 5Y3GT $5.00 Silvertone 120% / 110% --- used (L) ---
1 5Y3GT $5.00 Philco 115% / 110% --- used (L) ---
1 5Y3GT $5.00 Hitachi 130% / 130% --- used (L) ---
1 5Y3GT $5.00 Motorola 110% / 120% --- used (L) ---
1 5Y3GT $5.00 Motorola 110% / 110% --- used (L) ---
1 5Y3GT $5.00 Magnavox 115% / 120% --- used (L) ---
1 5Y3GT $5.00 Magnavox 115% / 120% --- used (L) ---
1 5Y3GT $5.00 Magnavox 120% / 120% --- used (L) ---
1 5Y3GT $5.00 Radiocoin 115% / 110% --- used (L) ---
1 5Y3GT $5.00 National Union 110% / 110% --- used (L) ---
1 5Y3GT $5.00 National Union 110% / 115% --- used (L) ---
1 5Y3GT $5.00 National Union 110% / 115% --- used (L) ---
1 5Y3GT $5.00 Westinghouse 120% / 110% --- used (L) ---
1 5Y3GT $5.00 Raytheon 110% / 110% --- used (L) ---
1 5Y3GT $5.00 Raytheon 110% / 110% --- used (L) ---
1 5Y3GT $5.00 Raytheon 110% / 120% --- used (L) ---
1 5Y3GT $5.00 Tung-Sol 110% / 110% --- used (L) ---
1 5Y3GT $5.00 Tung-Sol 120% / 110% --- used (L) ---
1 5Y3GT $5.00 Tung-Sol 110% / 115% --- used (L) ---
1 5Y3GT $5.00 unknown 115% / 120% --- used (L) ---
1 5Y3GT $4.00 CBS 120% / 105% --- used (L) ---
1 5Y3GT $4.00 CBS 110% / 105% --- used (L) ---
1 5Y3GT $4.00 RCA 100% / 100% --- used (rb) silver lettering
1 5Y3GT $4.00 Raytheon 105% / 105% --- used (rb) ---
1 5Y3GT $4.00 Raytheon 105% / 105% --- used (L) ---
1 5Y3GT $4.00 Admiral 100% / 100% --- used (L) ---
1 5Y3GT $4.00 unknown 120% / 115% --- used (L) cat:402-230
1 5Y3GT $4.00 Tung-Sol 100% / 100% --- used (L) ---
1 5Y3GT $4.00 Sylvania 110% / 100% --- used (L) yellow lettering
1 5Y3GT $4.00 GE 100% / 110% --- used (L) white lettering
1 5Y3GT $4.00 GE 110% / 100% --- used (L) white lettering
1 5Y3GT $4.00 GE 105% / 100% --- used (L) white lettering
1 5Y3GT $4.00 Philco 100% / 100% --- used (L) ---
1 5Y3GT $4.00 Marconi 100% / 110% --- used (L) ---
1 5Y3GT $4.00 Magnavox 100% / 100% --- used (L) ---
1 5Y3GT $4.00 Magnavox 100% / 100% --- used (L) ---
1 5Y3GT $4.00 Westinghouse 110% / 100% --- used (L) ---
1 5Y3GT $4.00 Ken-Rad 100% / 110% --- used (L) ---
1 5Y3GT $4.00 Ken-Rad 120% / 100% --- used (L) ---
1 5Y3GT $4.00 WE Electron 105% / 100% --- used (L) ---
1 5Y3GT $4.00 Zenith 100% / 100% --- used (L) ---
1 5Y3GT $4.00 Tung-Sol 110% / 100% --- used (L) ---
1 5Y3GT $2.50 GE 90% / 90% --- used (L) white lettering
1 5Y3GT $2.50 GE 95% / 100% --- used (L) white lettering
1 5Y3GT $2.50 GE 100% / 90% --- used (L) white lettering
1 5Y3GT $2.50 RCA 90% / 90% --- used (L) silver lettering
1 5Y3GT $2.50 National Union 90% / 110% --- used (L) ---
1 5Y3GT $2.50 Zenith 90% / 90% --- used (rb) ---
1 5Y3GT $2.50 Sylvania 90% / 90% --- used (L) green lettering
1 5Y3GT $2.50 Sylvania 95% / 100% --- used (L) green lettering
1 5Y3GT $2.50 Tung-Sol 100% / 90% --- used (L) ---
1 5Y3GT $2.50 Wards Airline 100% / 90% --- used (L) ---
1 5Y3GT $2.50 Ken-Rad 95% / 90% --- used (L) ---
1 5Y3GT $2.50 Ken-Rad 90% / 90% --- used (L) ---
1 5Y3GT $2.50 Ken-Rad 95% / 90% --- used (L) ---
1 5Y3GT $2.50 Ken-Rad 90% / 100% --- used (L) JAN
1 5Y3GT $2.50 Motorola 120% / 90% --- used (L) ---
1 5Y3GT $2.50 Haltron 100% / 90% --- used (L) Italy
1 5Y3GT $2.50 Hytron 90% / 90% --- used (L) ---
1 5Y3GT $3.00 Tung-Sol 110% / 120% --- used (L) cracked base
1 5Y3GT $3.00 GE 120% / 120% --- used (L) Canada - cracked base
1 5Y3GT $3.00 Westinghouse 110% / 110% --- used (L) cracked base
1 5Y3GT $3.00 Bendix Radio 115% / 105% --- used (L) cracked base
1 5Y3GT $3.00 Raytheon 120% / 120% --- used (L) cracked base
1 5Y3GT $3.00 CBS / Hytron 110% / 110% --- used (L) cracked base
1 5Y3GT $3.00 Arkay 110% / 115% --- used (L) England - cracked base
1 5Y3GT $3.00 Reliable 130% / 130% --- used (L) loose base
1 5Y3GT $3.00 Raytheon 120% / 130% --- used (L) cracked base
1 5Y3GT $2.50 unknown 120% / 125% --- used (L) cracked base
1 5Y3GT $2.50 GE 100% / 100% --- used (L) cracked base
1 5Y3GT $2.50 National Union 100% / 110% --- used (L) cracked base
1 5Y3GT $2.50 Ken-Rad 110% / 105% --- used (L) loose base
1 5Y3GT $2.50 Raytheon 100% / 100% --- used (L) loose base
1 5Y3GT $2.50 Raytheon 110% / 100% --- used (L) loose base
1 5Y3GT $2.00 Tung-Sol 95% / 95% --- used (L) cracked base
1 5Y3GT $2.00 GE 90% / 110% --- used (L) cracked base
1 5Y3GT $2.00 GE 90% / 100% --- used (L) cracked base
1 5Y3GT $2.00 National Union 100% / 100% --- used (L) cracked base
1 5Y3GT $2.00 National Union 105% / 95% --- used (L) cracked base
1 5Y3GT $2.00 National Union 100% / 90% --- used (L) broken locator pin
1 5Y3GT $2.00 Ken-Rad 90% / 90% --- used (L) cracked base
1 5Y3GT $2.00 Admiral 90% / 90% --- used (L) cracked base
1 5Y3GT $2.50 RCA 125% / 125% --- used (L) silver lettering - loose 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, (TT)=Tall Tubular, (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 audio 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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MDB Ventures Home

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