MDB Ventures "G" Style Radio Tubes

Save on NOS and Used "G" Style Radio Tubes!

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Be sure to see our Audio tube listings for more audio and rectifier 'G' style tubes.

Type: 25A6-G , 25A7-G , 25AC5-G , 25AC5-GT , 25B6-G , 25C6-G , 25L6-G , 25Z6-G , 35L6-G , 35Z5-G , 50C6-G , 50L6-MG , 50Z7-G

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, subminature, metal, power, transmitter tubes and many more.

We have metal and glass GT versions of most tubes as well as the 'G' types listed here. Metal and GT styles are normally at lower prices due to the greater quantities available. If you need a metal or GT style tube, just send us an email and we will let you know what we have and the prices. We have both NOS and used tubes available for most of the tube numbers.
MDB Ventures "G" Style Radio Tubes
Quantity
Available 		Tube
Type 		Price
Each 		Tube
Brand 		Emission
Strength 		Mutual
Conductance
Description
Notes
1 25A6-G $12.00 Sylvania 110% 2800/2300Gm NOS (OB) (ST) ---
1 25A6-G $12.00 Sylvania 110% 2750/2300Gm NOS (OB) (ST) ---
1 25A6-G $12.00 Crosley by Ken-Rad 120% 3200/2300Gm NOS (wb) (ST) ---
1 25A6-G $12.00 GE 120% 3000/2300Gm NOS (OB) (ST) ---
1 25A6-G $12.00 Philco 110% 2900/2300Gm NOS (OB) (ST) sealed in box
1 25A6-G $7.50 Arcturus 100% 2700/2300Gm used (rb) (ST) ---
1 25A7-G $12.00 Sylvania 120% Diode:110% 2800/1800Gm NOS (ob) (ST) sealed in box
1 25A7-G $12.00 Crosley by Ken-Rad 120% Diode:110% 2500/1800Gm NOS (wb) (ST) gray coat
1 25A7-G $10.00 RCA 100% Diode:110% 2500/1800Gm NOS (wb) (ST) clear glass
1 25A7-G $7.50 Crosley by Ken-Rad 110% Diode:110% 2800/1800Gm used (wb) (ST) clear glass - broken locator pin
1 25AC5-G $15.00 Raytheon 130% 1500/1500Gm NOS (OB) (ST) sealed in box
1 25AC5-G $14.00 Cunningham 130% 1700/1000Gm NOS (OB) ---
1 25AC5-G $7.50 National Union 130% 1500/1500Gm used (rb) (ST) ---
1 25AC5-GT $15.00 Cunningham 125% 1500/1000Gm NOS (OB) sealed in box
1 25AC5-GT $15.00 National Union 120% 1500/1000Gm NOS (OB) damaged box - black coat
1 25B6-G $5.00 GE 120% 4800/4000Gm used leaky (3M ohm) (wb) (ST) black coat
1 25B6-G $4.00 RCA 120% 4000/4000Gm used leaky (500K ohm) (rb) (ST) black coat
1 25C6-G $12.00 Sylvania 110% 6500/5000Gm NOS (ob) (ST) clear glass - damaged box
1 25C6-G $12.00 National Union 120% 7000/5000Gm NOS (ob) (ST) clear glass
1 25C6-G $12.00 National Union 130% 7000/5000Gm NOS (ob) (ST) clear glass
1 25C6-G $12.00 National Union 110% 6250/5000Gm NOS (wb) (ST) clear glass
1 25C6-G $7.50 GE 115% 6500/5000Gm used (wb) (ST) black coat
1 25C6-G $7.50 Sylvania 110% 5500/5000Gm used (wb) (ST) clear glass
1 25C6-G $7.00 Sylvania 100% 5500/5000Gm used (wb) (ST) clear glass
1 25C6-G $7.00 Sylvania 100% 5000/5000Gm used (ob) (ST) clear glass - torn box flap
1 25C6-G $5.00 Sylvania 90% 7500/5000Gm used (ob) (ST) clear glass - damaged box
1 25L6-G $12.00 Arcturus 110% 9500/8000Gm NOS (wb) (ST) skinny ST bulb - gray coat
1 25L6-G $7.50 Hytron 120% 12000/8000Gm used (wb) (ST) skinny ST bulb - gray coat
1 25L6-G $7.50 Tung-Sol 90% 9000/8000Gm used (wb) (ST) skinny ST bulb - black coat (cat:492-192)
1 25L6-G $7.50 Arcturus 110% 9000/8000Gm used (wb) (ST) skinny ST bulb - gray coat
1 25L6-G $7.50 Champion 110% 11000/8000Gm used (wb) (ST) skinny ST bulb - gray coat
1 25L6-G $7.50 Tung-Sol 110% 8000/8000Gm used (wb) (ST) skinny ST bulb - black coat
1 25L6-G $7.50 Tung-Sol 110% 8500/8000Gm used (rb) (ST) skinny ST bulb - black coat
1 25L6-G $7.50 Tung-Sol 110% 8000/8000Gm used (rb) (ST) skinny ST bulb - black coat
1 25L6-G $7.50 Zenith 130% 12000/8000Gm used (wb) (ST) fat ST bulb - gray coat
1 25L6-G $7.50 Zenith 125% 12500/8000Gm used (wb) (ST) fat ST bulb - gray coat
1 25L6-G $7.50 Delco 120% 8500/8000Gm used (wb) (ST) fat ST bulb - gray coat
1 25L6-G $7.50 Ken-Rad 120% 11000/8000Gm used (wb) (ST) fat ST bulb - black coat
1 25L6-G $7.50 Super Silvertone 130% 12500/8000Gm used (wb) (ST) fat ST bulb - clear glass - engraved base
1 25L6-G $7.50 Super Silvertone 110% 10000/8000Gm used (wb) (ST) fat ST bulb - gray coat
1 25L6-G $7.50 Raytheon 100% 9500/8000Gm used (wb) (ST) fat ST bulb - gray coat
1 25L6-G $7.50 National Union 120% 9500/8000Gm used (wb) (ST) fat ST bulb - clear glass
1 25L6-G $7.50 unknown 130% 12500/8000Gm used (wb) (ST) fat ST bulb - gray coat
1 25L6-G $7.50 unknown 130% 11000/8000Gm used (wb) (ST) fat ST bulb - gray coat
1 25Z6-G $7.50 Super Silvertone 110%/110% --- used (wb) (ST) ---
1 25Z6-G $7.00 Super Silvertone 100%/100% --- used (wb) (ST) ---
1 25Z6-G $7.50 RCA Victor 105%/110% --- used (wb) (ST) ---
1 25Z6-G $7.50 RCA 105%/105% --- used (wb) (ST) ---
1 25Z6-G $7.50 Zenith 110%/110% --- used (wb) (ST) ---
1 25Z6-G $7.50 Zenith 110%/110% --- used (wb) (ST) ---
1 25Z6-G $7.50 Wards Super Airline 110%/110% --- used (wb) (ST) ---
1 25Z6-G $7.50 Sylvania 110%/110% --- used (ob) (ST) ---
1 25Z6-G $7.00 Tung-Sol 100%/100% --- used (wb) (ST) (cat:312-408)
1 25Z6-G $6.00 RCA 95%/95% --- used (wb) (ST) ---
1 25Z6-G $5.00 Wards Super Airline 90%/90% --- used (wb) (ST) ---
1 35L6-G $10.00 Zenith 140% 8500/4600Gm used (wb) (ST) skinny ST bulb - gray coat
1 35L6-G $10.00 Zenith 130% 6500/4600Gm used (wb) (ST) skinny ST bulb - gray coat
1 35Z5-G $15.00 Zenith 110% --- used (wb) (ST) ---
1 50C6-G $5.00 Delco 110% 5600/5000Gm NOS (OB) (ST) fat ST bulb - clear glass
1 50C6-G $5.00 RCA 110% 5600/5000Gm NOS (OB) (ST) fat ST bulb - clear glass
1 50C6-G $5.00 RCA 110% 5600/5000Gm NOS (OB) (ST) fat ST bulb - clear glass
1 50C6-G $5.00 RCA 105% 5600/5000Gm NOS (OB) (ST) fat ST bulb - clear glass
1 50C6-G $5.00 RCA 110% 5700/5000Gm NOS (ob) (ST) fat ST bulb - clear glass - damaged box
1 50C6-G $5.00 RCA 110% 5300/5000Gm NOS (OB) (ST) fat ST bulb - gray coat - torn box flap
1 50C6-G $5.00 Sylvania 110% 5600/5000Gm NOS (wb) (ST) fat ST bulb - clear glass
1 50C6-G $5.00 Sylvania 115% 5500/5000Gm NOS (ob) (ST) fat ST bulb - clear glass - damaged box
1 50C6-G $2.50 Raytheon 95% 5400/5000Gm used (ob) (ST) fat ST bulb - gray coat
1 50C6-G $2.50 Raytheon 110% 5800/5000Gm used (ob) (ST) fat ST bulb - clear glass
1 50L6-MG $5.00 International Servicemaster 120% 6500/6500Gm NOS (OB) (MG) metal-glass (cat:sr10)
1 50L6-MG $5.00 International Servicemaster 150% 8250/6500Gm NOS (OB) (MG) metal-glass (cat:sr10)
1 50L6-MG $5.00 International Servicemaster 140% 7500/6500Gm NOS (OB) (MG) metal-glass (cat:sr10)
1 50L6-MG $5.00 International Servicemaster 150% 7000/6500Gm NOS (OB) (MG) metal-glass (cat:sr10)
1 50L6-MG $5.00 International Servicemaster 150% 8000/6500Gm NOS (OB) (MG) metal-glass (cat:sr10)
1 50Z7-G $20.00 Raytheon 110%/110% --- used (wb) (ST) ---

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, TT=Tall Tubular 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 "G" Style 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.

Contact MDB Ventures sales@mdbventures.com

Due to the highly volatile nature of the tube business, all Prices are subject to change without notice.

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