BEST SELLERS

Close The Door.

We believe this is a replacement switch activated by closing the door of a microwave. It’s a N/O (normally open) microswitch from Dongnan Electronics, rated for 5A at 125V and 2A at 250V. Comes with a bent 1-3/4” lever and is prewired with 19” leads and a 2-pin 5.5mm Molex connector. UL.

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MICROWAVE MICROSWITCH

Close The Door.

We believe this is a replacement switch activated by closing the door of a microwave. It’s a N/O (normally open) microswitch from Dongnan Electronics, rated for 5A at 125V and 2A at 250V. Comes with a bent 1-3/4” lever and is prewired with 19” leads and a 2-pin 5.5mm Molex connector. UL.

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$4.50 PKG (2)
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POCKET BEATING HEART TOY
NEW

This Thing’s Got A Pulse

Call it the Heart of a Doll, because that’s what it was, once upon a toy store. Today it’s a red, heart-shaped plastic thingy, 2-1/2" wide x 7/8" thick, with a smaller heart-shaped button on top. And yeah, it’s a little creepy. Hold the button and it emits a soothing electronic heartbeat at a tad under 60bpm. Runs on (2) button cell batteries, included.

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POCKET BEATING HEART TOY

This Thing’s Got A Pulse

Call it the Heart of a Doll, because that’s what it was, once upon a toy store. Today it’s a red, heart-shaped plastic thingy, 2-1/2" wide x 7/8" thick, with a smaller heart-shaped button on top. And yeah, it’s a little creepy. Hold the button and it emits a soothing electronic heartbeat at a tad under 60bpm. Runs on (2) button cell batteries, included.

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$3.95 PKG (2)

Choke

These 15uH chokes are encased in clear heat-shrink tubing with pre-soldered jumper leads. Rated for up to 4A and measure approx 4-1/2" long. Made in Germany.

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15uH CHOKES

Choke

These 15uH chokes are encased in clear heat-shrink tubing with pre-soldered jumper leads. Rated for up to 4A and measure approx 4-1/2" long. Made in Germany.

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$3.25 PKG (5)

Power Wheels® Fuse

This thermal fuse has 1.6 ohm resistance at the terminals, so at 6V should handle up to 3.75A. Housing measures 1-1/4" x 3/4" x 5/8" with a pair of  3/16" terminals on the bottom. Normally closed. Made in the USA in the early '90s for use in a Power Wheels® battery in a Super 6™ Volt Vehicle models 85000-85999, PP940 AND PP941.

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6V THERMAL FUSE

Power Wheels® Fuse

This thermal fuse has 1.6 ohm resistance at the terminals, so at 6V should handle up to 3.75A. Housing measures 1-1/4" x 3/4" x 5/8" with a pair of  3/16" terminals on the bottom. Normally closed. Made in the USA in the early '90s for use in a Power Wheels® battery in a Super 6™ Volt Vehicle models 85000-85999, PP940 AND PP941.

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$3.50 PKG (2)

Neat Little Heat Sinks

These black aluminum alloy heat sinks have flared fins at 1-3/8" x 1-1/2" x 1/2" with (2) pins out one short side and (3) 1/8" mounting holes in the center. Wethinks these are PCB mounts for TO series chips.

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1-3/8" x 1-1/2" x 1/2" ALUMINUM HEAT SINKS

Neat Little Heat Sinks

These black aluminum alloy heat sinks have flared fins at 1-3/8" x 1-1/2" x 1/2" with (2) pins out one short side and (3) 1/8" mounting holes in the center. Wethinks these are PCB mounts for TO series chips.

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$3.95 PKG (2)

Shiny Pulley

This small 24-tooth pulley is 1-1/16" long with 5/16" of that being a 5/8" dia shaft with a 1/2" x 3/8" flattened bore. The pulley portion is 1" OD x 7/8" ID. In shiny silver aluminum.

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1-1/16" LONG 24 TOOTH PULLEY

Shiny Pulley

This small 24-tooth pulley is 1-1/16" long with 5/16" of that being a 5/8" dia shaft with a 1/2" x 3/8" flattened bore. The pulley portion is 1" OD x 7/8" ID. In shiny silver aluminum.

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$3.95 PKG (3)

Got Heat You Need Sinking?

This black aluminum heat sink measures 4" x 2" x 1-1/14" with a 2" x 2-1/4" base. (6) 5/16" thick fins at the top and a set of (5) more at the bottom above the base. In between the fins is a 1-1/4" x 2" space for your chip with a 1-1/8" square thermal pad and a 3/16" bore.

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FINNISH HEAT SINK

Got Heat You Need Sinking?

This black aluminum heat sink measures 4" x 2" x 1-1/14" with a 2" x 2-1/4" base. (6) 5/16" thick fins at the top and a set of (5) more at the bottom above the base. In between the fins is a 1-1/4" x 2" space for your chip with a 1-1/8" square thermal pad and a 3/16" bore.

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$5.75 PKG (2)

Cool It

Our black anodized channel-style heat sink measures 1-1/4" x 1-1/2" x 7/16" with folded back fins and a pair of 1/8" mounting holes in the flat center. Come on, you've got some heat to sink. Who doesn't?

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ANODIZED CHANNEL HEAT SINK

Cool It

Our black anodized channel-style heat sink measures 1-1/4" x 1-1/2" x 7/16" with folded back fins and a pair of 1/8" mounting holes in the flat center. Come on, you've got some heat to sink. Who doesn't?

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$3.95 PKG (4)

IEC JACK BRACKETS

These black-plastic brackets with (2) 1/8” mounting holes are designed to hold the IEC jack on a computer. The bracket for a flush mount has locking tabs, inside dimensions of 1–3/32” x 13/16” plus side slots, and will stand 1/8” off the panel. The bracket for a recessed mount has locking tabs, inside dimensions of 1–1/16” x 3/4” plus side slots, and a 3/16” deep well. The swivel bracket is 2” x 1–1/16” x 1–1/2” OA and includes a strain relief that can swivel 180°.

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FLUSH BRACKET

IEC JACK BRACKETS

These black-plastic brackets with (2) 1/8” mounting holes are designed to hold the IEC jack on a computer. The bracket for a flush mount has locking tabs, inside dimensions of 1–3/32” x 13/16” plus side slots, and will stand 1/8” off the panel. The bracket for a recessed mount has locking tabs, inside dimensions of 1–1/16” x 3/4” plus side slots, and a 3/16” deep well. The swivel bracket is 2” x 1–1/16” x 1–1/2” OA and includes a strain relief that can swivel 180°.

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$1.95 PKG (20)

Piezo Elements

The mightiest mites of all, piezo elements. These are mounted in a 9/16" dia x 1/4" thick housing with a pair of 3/16" radial leads. The positive lead is marked.

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PIEZO DISCS IN 9/16" DIA HOUSING

Piezo Elements

The mightiest mites of all, piezo elements. These are mounted in a 9/16" dia x 1/4" thick housing with a pair of 3/16" radial leads. The positive lead is marked.

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$3.25 PKG (3)

Feel The Heat

It's a nonpolarized bimetal heat sensor, 1/2" long with rubber sleeves and 6" long leads. It's also mysterious, because when used as a thermocouple multimeter input, it reads approx 94° in nearly boiling water but approx 170° in ambient air. Wethinks some sort of inversion or scaling is going on, but a person with your smarts will surely figure it out.

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NONPOLARIZED BIMETAL HEAT SENSOR

Feel The Heat

It's a nonpolarized bimetal heat sensor, 1/2" long with rubber sleeves and 6" long leads. It's also mysterious, because when used as a thermocouple multimeter input, it reads approx 94° in nearly boiling water but approx 170° in ambient air. Wethinks some sort of inversion or scaling is going on, but a person with your smarts will surely figure it out.

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$2.95 PKG (3)

PELTIER HEAT PUMP

High tech comes to Am Sci & Surp!! It is here in the form of a Peltier junction, a thermo-electric device that translates electric power into heat, and perversely, into cool. Apply current @ 3-12 VDC to the gizmo and it extracts thermal energy from one face, thereby cooling it. The heat is dumped onto the other face, thereby heating it. Please note: you must use a heat sink on the hot side or the junction will fry itself, since it can quickly create a 65° C temperature differential in a no load situation. Stack two, or build a cascade to increase the thermal differential created. Or run it backwards. Apply heat or cold to the relevant face and produce a current. Amazing for science projects and experiments. Practical for coffee warmers, beer coolers and mini-refrigerator or warming oven applications. Comes with instructions. Large is 1-9/16" sq. x 3/16" thick.

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PELTIER JUNCTION THERMO-ELECTRO DEVICE

PELTIER HEAT PUMP

High tech comes to Am Sci & Surp!! It is here in the form of a Peltier junction, a thermo-electric device that translates electric power into heat, and perversely, into cool. Apply current @ 3-12 VDC to the gizmo and it extracts thermal energy from one face, thereby cooling it. The heat is dumped onto the other face, thereby heating it. Please note: you must use a heat sink on the hot side or the junction will fry itself, since it can quickly create a 65° C temperature differential in a no load situation. Stack two, or build a cascade to increase the thermal differential created. Or run it backwards. Apply heat or cold to the relevant face and produce a current. Amazing for science projects and experiments. Practical for coffee warmers, beer coolers and mini-refrigerator or warming oven applications. Comes with instructions. Large is 1-9/16" sq. x 3/16" thick.

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$8.95 EACH
$11.95
-25%

Safety Flasher

"Laser" safety lights each with super bright LEDs run by (2) "AA" batteries that you supply. It's square and has a flashing or steady LED lamp visible up to 2500 feet (distance may be exaggerated). A 2" x 2-1/2" red plastic reflecting lens covers (3) lamps. Hook it on your belt or pack with the belt clip, use the included elastic strap for arm or leg mounting, or the included aluminum flange to attach it to your bike.. It's great for general use as a warning device or as an emergency signal for roadside breakdowns.

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LED FLASHING BICYCLE SAFETY LIGHT

Safety Flasher

"Laser" safety lights each with super bright LEDs run by (2) "AA" batteries that you supply. It's square and has a flashing or steady LED lamp visible up to 2500 feet (distance may be exaggerated). A 2" x 2-1/2" red plastic reflecting lens covers (3) lamps. Hook it on your belt or pack with the belt clip, use the included elastic strap for arm or leg mounting, or the included aluminum flange to attach it to your bike.. It's great for general use as a warning device or as an emergency signal for roadside breakdowns.

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$2.95 EACH

4.1 MFD Capacitor

A 4.1 MFD 300 VAC capacitor. Only 1-5/8" long x 3/4" dia., the MGT-67A P.C. mount capacitor has a resistor mounted on its side.

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4.1 MFD CAPACITOR

4.1 MFD Capacitor

A 4.1 MFD 300 VAC capacitor. Only 1-5/8" long x 3/4" dia., the MGT-67A P.C. mount capacitor has a resistor mounted on its side.

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$2.00 EACH

Phone Line Filter

This 7-foot length of standard 4-wire gray telephone cord has a modular plug on each end and an in-line 1-1/2" x 1" dia interference blocking RF filter at one end. 'Nuff said.

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STANDARD TELEPHONE CORD WITH INTERFERENCE FILTER

Phone Line Filter

This 7-foot length of standard 4-wire gray telephone cord has a modular plug on each end and an in-line 1-1/2" x 1" dia interference blocking RF filter at one end. 'Nuff said.

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$1.25 EACH

RF? Maybe

Good things come in little packages. In this case the package is a 1-1/4" x 1-1/4" x 1/2" modulator, and the good things are a circuit board with at least a trimpot, electrolytic capacitor, assorted coils, 3-pin connector, RCA plug and (2) pop-off covers. Have a blast.

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MODULATOR

RF? Maybe

Good things come in little packages. In this case the package is a 1-1/4" x 1-1/4" x 1/2" modulator, and the good things are a circuit board with at least a trimpot, electrolytic capacitor, assorted coils, 3-pin connector, RCA plug and (2) pop-off covers. Have a blast.

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$1.00 EACH

A/V Ports

Standard-sized, white-plastic wall plates for permanent A/V wiring. The (3) color coded female RCA terminals will let you get rid of that unsightly tangled rat's nest of cables on the floor and cleanly and neatly run them through the walls. You deserve that video screen and stereo speakers in the bathroom after all.

 

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PLATE, 3 RCAS

A/V Ports

Standard-sized, white-plastic wall plates for permanent A/V wiring. The (3) color coded female RCA terminals will let you get rid of that unsightly tangled rat's nest of cables on the floor and cleanly and neatly run them through the walls. You deserve that video screen and stereo speakers in the bathroom after all.

 

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$0.50 EACH
$0.95
-47%

Teutonic Noise

This well-made plastic siren/whistle, a touch over 3/4" in diameter and a similar touch under 2" long, has a perforated metal disk that rotates in response to a silent blast from the perpetrator's lungs. This creates a high-pitched, loud and certainly distinctive siren-sound that picks up pitch in relation to the air velocity, sustains it as long as your wind holds out, and winds down quickly thereafter. A fine way to signal your arrival or departure. Probably not loud enough to collect the clan at the beach, but loud enough to get their attention in the classroom! The size makes it hard, but not impossible, to swallow, so please use care in teaching youngsters to sound like a miniature air raid siren.

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SIREN WHISTLE

Teutonic Noise

This well-made plastic siren/whistle, a touch over 3/4" in diameter and a similar touch under 2" long, has a perforated metal disk that rotates in response to a silent blast from the perpetrator's lungs. This creates a high-pitched, loud and certainly distinctive siren-sound that picks up pitch in relation to the air velocity, sustains it as long as your wind holds out, and winds down quickly thereafter. A fine way to signal your arrival or departure. Probably not loud enough to collect the clan at the beach, but loud enough to get their attention in the classroom! The size makes it hard, but not impossible, to swallow, so please use care in teaching youngsters to sound like a miniature air raid siren.

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$2.75 PKG (5)

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