MDB Ventures Radio Loktal 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.


Loktal tubes were designed by Sylvania in 1938 for mobile radio use. The proper name is "Loktal" although the name is sometimes misspelled as "loctal" since "Loktal" doesn't look like the right spelling. The tubes "lock" into the socket via a spring clamp around the locator pin.

Often the tubes will have a black coating on the pins. This is not as bad as it seems. The pins are coated with silver to provide a better contact, but silver oxidizes with age which is the cause of the black color. Silver oxide is still conductive, although not as conductive as unoxidized silver.


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

Desc

Notes
1 7C6 $12.00 Sylvania 110% diodes 120% / 120% 700 / 600Gm NOS (OB) Loktal - green lettering
1 7C6 $12.00 Sylvania 140% diodes 120% / 120% 850 / 600Gm NOS (OB) Loktal - green lettering
1 7C6 $12.00 RCA 110% diodes 120% / 120% 700 / 600Gm NOS (wb) Loktal - silver lettering
1 7C6 $12.00 Delco 120% diodes 120% / 110% 750 / 600Gm NOS (OB) Loktal
1 7C6 $12.00 Raytheon 130% diodes 110% / 110% 900 / 600Gm NOS (OB) Loktal
1 7C6 $12.00 Westinghouse 130% diodes 120% / 120% 800 / 600Gm NOS (OB) Loktal
1 7C6 $12.00 CBS 140% diodes 120% / 120% 900 / 600Gm NOS (OB) Loktal
1 7C6 $12.00 Tung-Sol 130% diodes 120% / 120% 800 / 600Gm NOS (OB) Loktal - damaged box
1 7C6 $5.00 Sylvania 120% diodes 120% / 120% 750 / 600Gm used (wb) Loktal - green lettering
1 7C6 $5.00 Sylvania 140% diodes 120% / 120% 850 / 600Gm used (wb) Loktal - green lettering - JAN
1 7C6 $5.00 Sylvania 140% diodes 110% / 110% 850 / 600Gm used (rb) Loktal - yellow lettering
1 7C6 $5.00 Sylvania 140% diodes 110% / 110% 850 / 600Gm used (rb) Loktal - yellow lettering
1 7C6 $5.00 RCA 120% diodes 110% / 110% 700 / 600Gm used (rb) Loktal - silver lettering
1 7C6 $5.00 Raytheon 130% diodes 120% / 120% 900 / 600Gm used (rb) Loktal
1 7C6 $5.00 Natioanl Union 110% diodes 110% / 110% 600 / 600Gm used (rb) Loktal
1 7C6 $4.00 Philco 100% diodes 110% / 110% 650 / 600Gm used (L) Loktal
1 7C6 $4.00 National Union 100% diodes 120% / 120% 600 / 600Gm used (rb) Loktal
1 7C6 $4.00 unknown 140% diodes 120% / 120% 900 / 600Gm used (rb) Loktal
1 7C6 $4.00 unknown 130% diodes 110% / 120% 800 / 600Gm used (rb) Loktal
1 7C6 $4.00 unknown 105% diodes 110% / 120% 600 / 600Gm used (wb) Loktal
1 7C6 $3.00 Philco 115% diodes 90% / 110% 650 / 600Gm used (L) Loktal
1 7C6 $3.00 Philco 120% diodes 90% / 120% 700 / 600Gm used (L) Loktal
1 7C6 $3.00 RCA 130% diodes 90% / 90% 800 / 600Gm used (rb) Loktal - silver lettering
1 7C6 $2.00 unknown 90% diodes 100% / 110% 500 / 600Gm used (rb) Loktal
1 7C6 $2.00 Sylvania 90% diodes 105% / 115% 450 / 600Gm used (wb) Loktal - green lettering
1 7C6 $2.00 Philco 90% diodes 120% / 120% 500 / 600Gm used (L) Loktal
1 7C6 $2.00 Philco 90% diodes 110% / 110% 700 / 600Gm used (rb) Loktal
1 7C7 / VT-193 $3.00 Sylvania 140% 1600 / 1300Gm NOS (OB) Loktal - green lettering - JAN
1 7C7 $3.00 Sylvania 140% 1700 / 1300Gm NOS (OB) Loktal - green lettering - water damaged box
1 7C7 $3.00 Sylvania 120% 1600 / 1300Gm NOS (OB) Loktal - green lettering
1 7C7 $3.00 Sylvania 120% 1500 / 1300Gm NOS (OB) Loktal - green lettering
1 7C7 $3.00 Sylvania 130% 1400 / 1300Gm NOS (OB) Loktal - green lettering
1 7C7 $3.00 Sylvania untested sealed in box NOS (OB) Loktal - green lettering
1 7C7 $3.00 Sylvania 120% 1500 / 1300Gm NOS (OB) Loktal - green lettering - for Link Radio Corp.
1 7C7 $3.00 Sylvania 140% 1600 / 1300Gm NOS (OB) Loktal - green lettering - JAN
1 7C7 $3.00 Sylvania 140% 2000 / 1300Gm NOS (OB) Loktal - green lettering - JAN
1 7C7 $3.00 Sylvania 140% 2100 / 1300Gm NOS (OB) Loktal - green lettering - JAN - torn box flap
1 7C7 $3.00 Sylvania 140% 1900 / 1300Gm NOS (OB) Loktal - green lettering - JAN
1 7C7 $3.00 Sylvania 140% 1700 / 1300Gm NOS (OB) Loktal - green lettering - JAN
1 7C7 $3.00 Sylvania 140% 1800 / 1300Gm NOS (OB) Loktal - green lettering - JAN - damaged box
1 7C7 $3.00 Sylvania 130% 1500 / 1300Gm NOS (OB) Loktal - green lettering - JAN - minor corrosion on base
1 7C7 $3.00 Sylvania 120% 1500 / 1300Gm NOS (OB) Loktal - green lettering - US Navy - damaged box
1 7C7 $3.00 Sylvania 120% 1400 / 1300Gm NOS (OB) Loktal - green lettering - US Navy - damaged box
1 7C7 $3.00 Sylvania 140% 1500 / 1300Gm NOS (OB) Loktal - yellow lettering
1 7C7 $3.00 GE 140% 2000 / 1300Gm NOS (OB) Loktal - white lettering
1 7C7 $3.00 GE 140% 1800 / 1300Gm NOS (OB) Loktal - white lettering - damaged box
1 7C7 $3.00 National Union 120% 1500 / 1300Gm NOS (OB) Loktal - missing box flap
1 7C7 $3.00 Motorola 140% 1900 / 1300Gm NOS (OB) Loktal
1 7C7 $3.00 Motorola 140% 1800 / 1300Gm NOS (OB) Loktal
1 7C7 $3.00 Motorola 140% 1900 / 1300Gm NOS (OB) Loktal
1 7C7 $3.00 Motorola 140% 2000 / 1300Gm NOS (OB) Loktal
1 7C7 $3.00 RCA 140% 1800 / 1300Gm NOS (OB) Loktal - silver lettering
1 7C7 $3.00 RCA 140% 1600 / 1300Gm NOS (OB) Loktal - silver lettering
1 7C7 $3.00 Hytron 130% 1700 / 1300Gm NOS (OB) Loktal
1 7C7 $3.00 US Navy untested sealed in box NOS (OB) Loktal
1 7C7 / VT-193 $1.50 Philco 110% 1600 / 1300Gm used (rb) Loktal
1 7C7 / VT-193 $1.50 Philco 110% 1400 / 1300Gm used (rb) Loktal
1 7C7 $1.50 Philco 140% 1800 / 1300Gm used (wb) Loktal
1 7C7 $1.50 Philco 100% 1500 / 1300Gm used (rb) Loktal
1 7C7 $1.50 Silvertone 140% 1700 / 1300Gm used (wb) Loktal
1 7C7 $1.50 Sparton 130% 1300 / 1300Gm used (wb) Loktal
1 7C7 $1.50 Sylvania 110% 1400 / 1300Gm used (rb) Loktal - green lettering
1 7C7 $1.50 Sylvania 110% 1100 / 1300Gm used (rb) Loktal - green lettering
1 7C7 $1.50 Sylvania 110% 1400 / 1300Gm used (rb) Loktal - green lettering - US Navy
1 7C7 $1.50 Sylvania 130% 1600 / 1300Gm used (rb) Loktal - green lettering
1 7C7 $1.50 Sylvania 140% 1700 / 1300Gm used (rb) Loktal - green lettering
1 7C7 $1.50 Sylvania 100% 1200 / 1300Gm used (rb) Loktal - green lettering
1 7C7 $1.00 unknown 120% 1400 / 1300Gm used (rb) Loktal
1 7C7 $1.00 unknown 120% 1600 / 1300Gm used (rb) Loktal
1 7C7 $1.00 unknown 120% 1400 / 1300Gm used (rb) Loktal
1 7C7 $1.00 unknown 120% 1300 / 1300Gm used (rb) Loktal
1 1273 $6.00 Silvertone 150% 1500 / 1300Gm NOS (OB) Loktal - non-microphonic 7C7
1 1273 $3.00 Silvertone 110% 1500 / 1300Gm used (wb) Loktal - non-microphonic 7C7
1 1273 $3.00 Sylvania 120% 1700 / 1300Gm used (wb) Loktal - green lettering - non-microphonic 7C7
1 1273 $0.50 unknown 40% 500 / 1300Gm used (L) Loktal - non-microphonic 7C7
1 VT-241 / 7E5 $5.00 Sylvania untested sealed in box NOS (OB) Loktal
1 VT-241 / 7E5 / 1201 $5.00 Philco untested sealed in box NOS (OB) Loktal - US Army
1 7E5 / 1201 $5.00 Hytron 130% 3600 / 3000Gm NOS (OB) Loktal
1 7E5 / 1201 $5.00 Hytron 130% 3300 / 3000Gm NOS (OB) Loktal
1 7E5 / 1201 $5.00 Hytron 130% 3600 / 3000Gm NOS (OB) Loktal
1 7E5 / 1201 $5.00 Hytron 140% 4000 / 3000Gm NOS (OB) Loktal
1 7E5 / 1201 $5.00 Hytron 140% 4000 / 3000Gm NOS (OB) Loktal
1 7E5 / 1201 $5.00 Hytron 140% 4000 / 3000Gm NOS (OB) Loktal
1 7E5 $5.00 Ken-Rad 140% 4000 / 3000Gm NOS (OB) Loktal - sealed in box
1 7E5 $5.00 Ken-Rad 140% 4000 / 3000Gm NOS (OB) Loktal - sealed in box
1 7E5 $5.00 Ken-Rad 140% 3600 / 3000Gm NOS (OB) Loktal - sealed in box
1 7E5 $5.00 Ken-Rad 140% 4000 / 3000Gm NOS (OB) Loktal - sealed in box
1 7E5 $5.00 Ken-Rad 130% 3500 / 3000Gm NOS (OB) Loktal - sealed in box
1 7E5 $5.00 Ken-Rad 120% 3000 / 3000Gm NOS (OB) Loktal - sealed in box
1 7E5 $5.00 Ken-Rad 140% 3600 / 3000Gm NOS (OB) Loktal - sealed in box
1 7E5 $5.00 Ken-Rad 100% 2800 / 3000Gm NOS (OB) Loktal - sealed in box
1 7E5 $5.00 Arcturus 110% 3000 / 3000Gm NOS (OB) Loktal
1 7E5 / 1201 $5.00 Raytheon 100% 2800 / 3000Gm NOS (OB) Loktal - sealed in box
1 7E5 / 1201 $5.00 Philco 120% 3500 / 3000Gm NOS (OB) Loktal
1 7E5 / 1201 $5.00 GE 130% 3500 / 3000Gm NOS (OB) Loktal - white lettering
1 7E5 / 1201 $5.00 GE 140% 4000 / 3000Gm NOS (OB) Loktal - white lettering
1 7E5 / 1201 $5.00 Sylvania 130% 3000 / 3000Gm NOS (OB) Loktal - green lettering
1 7E5 / 1201 $5.00 Sylvania 130% 3000 / 3000Gm NOS (OB) Loktal - green lettering
1 7E5 / 1201 $5.00 Sylvania 120% 3400 / 3000Gm NOS (OB) Loktal - green lettering
1 7E5 / 1201 $5.00 Sylvania 140% 3300 / 3000Gm NOS (OB) Loktal - green lettering
1 7E5 / 1201 $5.00 Natioanl Union 130% 3600 / 3000Gm NOS (OB) Loktal
1 7E5 / 1201 $5.00 Natioanl Union 130% 3600 / 3000Gm NOS (OB) Loktal
1 7E5 / 1201 $5.00 Natioanl Union 100% 2800 / 3000Gm NOS (OB) Loktal
1 7E5 / 1201 $5.00 Natioanl Union 100% 3000 / 3000Gm NOS (OB) Loktal
1 1201 $5.00 Natioanl Union 130% 3500 / 3000Gm NOS (OB) Loktal
1 1201 $5.00 National Union 130% 3800 / 3000Gm NOS (OB) Loktal
1 1201 $5.00 Natioanl Union 140% 4000 / 3000Gm NOS (OB) Loktal
1 1201 $5.00 Natioanl Union 140% 3600 / 3000Gm NOS (OB) Loktal
1 1201 $5.00 Natioanl Union 100% 2800 / 3000Gm NOS (OB) Loktal
1 1201 $5.00 US Navy untested sealed in box NOS (OB) Loktal
1 1201 $5.00 US Navy untested sealed in box NOS (OB) Loktal
1 1201 $5.00 US Navy untested sealed in box NOS (OB) Loktal
1 1201 $5.00 US Navy untested sealed in box NOS (OB) Loktal
1 1201 $5.00 US Navy untested sealed in box NOS (OB) Loktal
1 1201 $5.00 US Navy untested sealed in box NOS (OB) Loktal - damaged box
1 1201 $5.00 National Union untested sealed in box NOS (OB) Loktal
1 1201 $5.00 National Union untested sealed in box NOS (OB) Loktal
1 7E5 / 1201 $4.00 Raytheon 120% 3500 / 3000Gm NOS (OB) Loktal - minor rust on base
1 7E5 / 1201 $2.50 Hytron 100% 2600 / 3000Gm used (OB) Loktal
1 7E5 / 1201 $2.50 Hytron 100% 2800 / 3000Gm used (OB) Loktal
1 1201 $2.50 National Union 100% 2600 / 3000Gm used (OB) Loktal
1 1201 / VT-241 $2.50 Sylvania 140% 4200 / 3000Gm used (L) Loktal - green lettering
1 1201 / VT-241 $2.50 Sylvania 130% 3400 / 3000Gm used (L) Loktal - green lettering
1 1201 / VT-241 $2.50 Sylvania 140% 3500 / 3000Gm used (L) Loktal - green lettering
1 1201 / VT-241 $2.50 Sylvania 120% 3000 / 3000Gm used (L) Loktal - green lettering
1 1201 / VT-241 $2.50 Sylvania 120% 3200 / 3000Gm used (L) Loktal - green lettering
1 1201 / VT-241 $2.50 Sylvania 110% 3000 / 3000Gm used (L) Loktal - green lettering
1 1201 / VT-241 $2.50 Sylvania 120% 3400 / 3000Gm used (L) Loktal - green lettering
1 1201 / VT-241 $2.50 Sylvania 110% 2800 / 3000Gm used (L) Loktal - green lettering
1 1201 / VT-241 $2.50 Philco 130% 3600 / 3000Gm used (L) Loktal
1 1201 $2.50 Philco 140% 4000 / 3000Gm used (L) Loktal
1 1201 / VT-241 $1.00 Philco 140% 4000 / 3000Gm used leaky (500K) (L) Loktal
1 1201 $1.00 GE 90% 2400 / 3000Gm used (rb) Loktal
1 1201 $1.00 National Union 90% 2800 / 3000Gm used (OB) Loktal
1 7E5 / 1201 $1.00 National Union 90% 2500 / 3000Gm used (OB) Loktal
1 7E5 / 1201 $1.00 National Union 90% 2600 / 3000Gm used (OB) Loktal

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 Loktal 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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or
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