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P-Q972Diode - 1N34A Germanium, Sold individually
A semiconductor device which passes current in the forward direction(from anode to cathode), and blocks current in the opposite direction.
$1.75
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K-501Amp Kit - Monoblock Tube Amplifier
Tube designs rival the sound of high end audio amplifiers that cost 10 times as much! This kit was designed by George Fathauer. Enjoy the thrill of high end audio without going broke and enjoy the satisfaction in building it yourself. Kit come complete will all parts and easy to follow instructions.
Uses 11MS8 Power tubes included with the kit. Also includes board for mounting PC board and transformers.
Input Impedance: 100K ohms
Output Impedance: 8 ohms
Power Output: 8 watts per channel
Frequency Response: 20 to 20,000 Hz
Minimum Input for Full Output: 0.3 V
Total Harmonic Distortion @ 1 W:
$124.95
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K-502Amp Kit - Stereo Integrated Tube Amplifier
Tube designs rival the sound of high end audio amplifiers that cost 10 times as much! This kit was designed by George Fathauer. Enjoy the thrill of high end audio without going broke and enjoy the satisfaction in building it yourself. Kit comes complete will all parts and easy to follow instructions. Easily built in one evening. Uses 11BM8 tubes included in the kit. Also included pine board for mounting PC board and transformers.
$204.95
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P-A480Earphone - Crystal, 3.5mm
High impedance crystal earphone - very sensitive and works great with crystal radios. Has 3 a foot cord and miniature (3.5 mm) plug.
$3.25
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P-C70-RFCoil - RF

Coil is similar to Miller number 70-RF. Resistance Measurements Lug 1 to 2: 9.7 ohms Lug 3 to 4: 78.0 ohms Please click on image for further specs


$8.95
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P-C70-AAntenna Coil - for tube radios

Will replace broadcast band coils in any tube type radio. Adjustable inductance for perfect tracking. Mount on bus wire leads or in 5/16" hole. Coils are similar to Miller numbers that correspond.



  • Primary coil inductance: 2mH
  • Secondary coil inductance: 191uH

$8.95
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P-C70-OSCCoil - Oscillator

Coil is similar to Miller number 70-OSC.


$8.95
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K-488Kit - Wireless Transmitter
Now your antique radio can play some of the same programs it did when it was new! With your cassette tape player, phonograph or high output microphone, this one tube transmitter becomes a miniature AM broadcasting station, patterned after the 1939 Zenith model S-7000 Wireless Record Player. Assemble on a 4 x 6 1/2 breadboardall parts and instructions included. 2 lbs.
$39.95
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K-101AKit - Power Supply

Input - 120V, 60 Hz. "A" Output - Adjustable and regulated 1.5 to 7.5 volts 1.5 Amps "B" Output - 22, 45, 67, 90, and 135 volts regulated up to 50mA. "C" Output - Adjustable 0 to 22 volts. Regulated. Kit includes transformer, rectifiers, capacitors, resistors, transistors, I.C., regulator, white pine board, and all necessary hardware. Easy to follow instructions for assembly. 3.0 lbs.


$54.95
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P-H200XWasher - 0.25" Inside Diameter, Felt (Package of 5)
Multiple Options Available
Premium quality wool felt washers. Medium brown in color, these washers will resist wear and hold their shape over time. Center holes already punched. ¼" inside diameter. Listed diameter is outside diameter. Washer is 1/16" thick.
Starting at $1.95
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R-VS-XAPotentiometer - Alpha, Audio, SPST Switch
Multiple Options Available
1 amp, 125VAC, 0.25W, single pole, single throw switched potentiometer. 24mm body.
$2.65
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SCHEMATICSchematic Service - Radio, Hi-Fi Amps, Tuners, Receivers, etc.
Multiple Options Available

To order a schematic, enter the make and model of your schematic and click the Add to Cart button. Alternatively, you can browse our library of schematics online to find the schematic you're looking for. We have a vast library of schematics and if we have the one you are looking for we'll send it to you. If we do not have what you need, we'll contact you to let you know.


$8.00
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P-R407Grommet - Motor Mounting, package of 9 (Package of 9)

Rubber grommets for mounting phonograph motors. 1/2 dia.5/16" highand ¼" inner dia.


$6.75
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