MDB Ventures Radio Loktal Tubes
Also Be sure to see our
Audio tube listings
and
Large Radio Vacuum Tube List
and
"G" Style Radio Vacuum Tube List
for more audio and rectifier tubes.
|
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 | 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 | RCA | 120% diodes 110% / 110% | 700 / 600Gm | used (rb) | Loktal - silver lettering |
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% | 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.
Go back to the TOP
Don't forget to visit our
Discount Bargain Packs
and
Bargain Bin Tubes
for more savings!
|
|