Clearance Items

Potentiometers

Potentiometers are used to control volume and tone. A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider.Check out our Tech Corder articles on pots, including Potentiometer Types.

Vacuum Tubes

The first electronic amplification of sound was done with Vacuum Tubes. We have pre-amp, power and rectifier vacuum tubes among other types in New Old Stock from the golden era of American & European manufacturing as well as current production tubes from today.
B-307 Most Often Needed Radio Diagrams, Volume 1
by M. N. Beitman
Radio Diagrams and Servicing Information from 1926 to 1938. Shows circuit diagrams for 600 of the most commonly found radios of that time. A valuable resource for restorations.
$3.26
B-697 Radio, Wireless Telephone and Wireless Telegraph Equipment
High quality reprint of early (1920s) Montgomery Ward catalog of wireless equipment. 32 pages of radios, kits, tubes and books as available 70 years ago. Sorry, you can't order from this catalog! 0.2 lbs, 7" x 9.5", 33 pages.
$1.00
Save 49%
Originally: $1.95
A maximum order of 1 is allowed.
R-VPE500KASPL-1 Potentiometer - PEC Guitar, 500kΩ, Audio, Long Bushing
Precision Electronic Components (PEC) Potentiometers are very high quality replacement and upgrade components. Hot molded Carbon element, gold-plated terminals, stainless steel shaft and housing. Mechanical rotation: 314° ¼" shaft diameter, 3/8" bushing diameter, 3/8" shaft length, ½" bushing length.
$44.95
R-VPEXASP-1 Potentiometer - PEC Guitar, Audio, Split Shaft
Precision Electronic Components (PEC) Potentiometers are very high quality replacement and upgrade components. Hot molded Carbon element, gold-plated terminals, 24mm potentiometer with stainless steel split knurled shaft and one piece brass housing. Mechanical rotation: 300°, ¼" shaft diameter, 3/8" bushing diameter, 3/8" shaft length, ¼" bushing length. 1 watt.
Includes 1 nut and 1 lock washer.
$44.95
R-VPEXASS-1 Potentiometer - PEC Guitar, Audio, Solid Shaft
Precision Electronic Components (PEC) Potentiometers are very high quality replacement and upgrade components. Hot molded Carbon element, gold-plated terminals, 24mm potentiometer with stainless steel slotted solid shaft and one piece brass housing. Mechanical rotation: 300°, ¼" shaft diameter, ⅜" bushing diameter, ⅜" shaft length, ¼" bushing length. 1 watt.
$29.95
T-12AT7-CHINA Vacuum Tube - 12AT7, China
Chinese 12AT7 dual triode.
$12.34
T-12AU7-CHINA Vacuum Tube - 12AU7, China
9 pin miniature preamp tube (Amplification Factor = 17)
$11.10
T-12AX7B-CHINA Vacuum Tube - 12AX7B, China
9 pin miniature preamp tube (Amplification Factor = 100). The Chinese 12AX7B is very similar in tone to its standard Chinese cousin, but the Bs seem to average in at slightly lower gain and noise.
$11.25
T-12JT6A Vacuum Tube - 12JT6A, Beam Power Amplifier
The 12JT6A is the same as the 6JT6A except for heater characteristics and ratings.
$3.95
Save 50%
Originally: $7.90
T-12SG7-JG Vacuum Tube - 12SG7, Pentode, Semi-Remote Cut-Off, JA
12SG7 - Pentode, Semi-Remote Cut-Off, JA
$2.43
Save 50%
Originally: $4.85
T-1G4GT Vacuum Tube - 1G4GT, Triode, Medium MU
Filament type general purpose triode especially designed for use in low drain battery operated receivers.
$14.90
T-2-01C Vacuum Tube - 2-01C, Rectifier
Small, closely spaced, low-capacitance, high-vacuum diode designed for use through ultra-high frequencies. In measurement work, it is well suited to mounting in a probe and will maintain accuracy
$18.45
Save 50%
Originally: $36.90
T-32 Vacuum Tube - 32, Tetrode
Sharp cut-off tetrode designed for use as a radio-frequency or intermediate-frequency amplifier or as a detector tube in battery operated receivers.
$4.45
Save 50%
Originally: $8.90
T-3Q4 Vacuum Tube - 3Q4, Pentode, Power
The type 3Q4 is a miniature type power-amplifier pentode designed for use in the output stage of battery operated equipment.
$2.95
Save 50%
Originally: $5.90
T-4-125A_4D21 Vacuum Tube - 4-125A / 4D21, Tetrode, Power Amplifier
The 4D21 / 4-125A is a four-electrode tube designed for use as a power amplifier and oscillator. The anode is capable of dissipating 125 watts, and cooling is accomplished by radiation.
$139.90
T-416D Vacuum Tube - 416D, Triode, Planar
416D - Triode, Planar
$11.05
Save 50%
Originally: $22.10
T-5654_6AK5W Vacuum Tube - 5654 / 6AK5W, Pentode, Sharp Cut-Off, RF
Miniature sharp-cutoff pentode for use as a wide-band, high-frequency amplifier. It is also useful in video and audio amplifiers, oscillators, mixers, frequency multipliers, and cathode followers.
$2.45
Save 50%
Originally: $4.90
T-5678 Vacuum Tube - 5678, Pentode
Subminiature pentode for use as R.F, M.F., or A.F. amplifier, oscillator, self-oscillating mixer, A.M. detector etc.
$2.95
Save 50%
Originally: $5.90
T-5692-RED Vacuum Tube - 5692, Triode, Dual, Red Base
Triode, Dual, Red Base
$100.75
T-5726_6AL5W Vacuum Tube - 5726 / 6AL5W, Dual Diode
Twin diode miniature type intended for applications where dependable performance under shock and vibration is paramount. The 5726 is a "premium" version of the 6AL5W
$2.45
Save 50%
Originally: $4.90
T-5755_420A Vacuum Tube - 5755 / 420A, Dual Triode
The 420A electron tube is a double-triode having separate indirectly heated cathodes. The heater is center-tapped to permit operation from a 6.3 or 12.6 volt filament supply.
$4.95
Save 50%
Originally: $9.90
T-5763 Vacuum Tube - 5763, Tetrode, Beam Power
Heater-cathode type transmitting beam power amplifier in the 9 pin miniature construction. It is intended for use in compact, low-power mobile transmitters and in the low-power stages of larger fixed station transmitters.
$6.45
Save 50%
Originally: $12.90
T-5840_6225 Vacuum Tube - 5840 / 6225, Pentode, Sharp Cut-Off
The premium subminiature type 5840 is a sharp cutoff pentode characterized by long life and stable performance under conditions of severe shock, vibration, high temperature and high altitude
$4.95
Save 50%
Originally: $9.90
T-5AR4-CHINA Vacuum Tube - 5AR4, Chinese
Chinese 5AR4 Vacuum Tube
$18.54
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