Канал: Gregory Charvat

National Cash Register Model 1500 vintage cash register restoration p3

National Cash Register Model 1500 vintage cash register restoration p3

Happy pi day - from a piece of vintage retail computing tech

Happy pi day - from a piece of vintage retail computing tech

National Cash Register Model 1500 vintage cash register restoration p2

National Cash Register Model 1500 vintage cash register restoration p2

National Cash Register Model 1500 vintage cash register restoration p1

National Cash Register Model 1500 vintage cash register restoration p1

@coldwarmotors @slotcarcrazy

@coldwarmotors @slotcarcrazy

@coldwarmotors

@coldwarmotors

Vintage slot car launch down the scale-model quarter mile @coldwarmotors

Vintage slot car launch down the scale-model quarter mile @coldwarmotors

Vintage slot car stunt driving!! @coldwarmotors

Vintage slot car stunt driving!! @coldwarmotors

Two lane black top @coldwarmotors

Two lane black top @coldwarmotors

Light hits; 1960’s slot car racing action. Batmobile vs. Lamborghini @coldwarmotors

Light hits; 1960’s slot car racing action. Batmobile vs. Lamborghini @coldwarmotors

July 25, 2022

July 25, 2022

Inside of an Icom IC-R75

Inside of an Icom IC-R75

HP8002A pulse generator

HP8002A pulse generator

Maximizing the performance of a Sterling Engine kit

Maximizing the performance of a Sterling Engine kit

Restoring the Knight KG-670 RC Capacitor Tester

Restoring the Knight KG-670 RC Capacitor Tester

Microwave Pinhole Camera

Microwave Pinhole Camera

Microwave Pinhole Camera

Microwave Pinhole Camera

Elenco Line Following Robot Kit

Elenco Line Following Robot Kit

Fiddle Switches for the Kids

Fiddle Switches for the Kids

BC578 emergency transmitter donation to the USS Torsk museum ship submarine

BC578 emergency transmitter donation to the USS Torsk museum ship submarine

WW2 Signal Lamp CAN REF No 5A 823

WW2 Signal Lamp CAN REF No 5A 823

RCA Radioloa 18 restoration with Nano VNA test & Sensitivity Measurements

RCA Radioloa 18 restoration with Nano VNA test & Sensitivity Measurements

Power-One Power Supply Repair on a Scratch-built 20m SSB transceiver

Power-One Power Supply Repair on a Scratch-built 20m SSB transceiver

Tek2230 oscilloscope repair and kids seeing their voice for the first time

Tek2230 oscilloscope repair and kids seeing their voice for the first time

1.425 GHz hydrogen line receiver; Resurrection of my high school ISEF science fair project

1.425 GHz hydrogen line receiver; Resurrection of my high school ISEF science fair project

Vintage Slot Car Aurora Model Motoring T-Jet Drag Racing, Loop-de-Loop, oval track, trains

Vintage Slot Car Aurora Model Motoring T-Jet Drag Racing, Loop-de-Loop, oval track, trains

A simple approach to polishing Vintage Digital Watches

A simple approach to polishing Vintage Digital Watches

HP8720C PLL phase lock error and Power Supply Repair

HP8720C PLL phase lock error and Power Supply Repair

Testing a Ford Philco AM Car Radio C90A-18806-B

Testing a Ford Philco AM Car Radio C90A-18806-B

Restoration of a Select S 772 TE 6 radio from East Germany, Solid State behind the iron curtain...

Restoration of a Select S 772 TE 6 radio from East Germany, Solid State behind the iron curtain...

Simpson 260 Voltmeter Glass Repair

Simpson 260 Voltmeter Glass Repair

Repair & cleaning of a Kodaslide Stereo Viewer, see your vintage slides in 3D

Repair & cleaning of a Kodaslide Stereo Viewer, see your vintage slides in 3D

Controlling a Parker 32 Inch XY stage with Labview, Gecko drives, and an NI DAQ card

Controlling a Parker 32 Inch XY stage with Labview, Gecko drives, and an NI DAQ card

Heathkit GC-1000 most accurate clock demo

Heathkit GC-1000 most accurate clock demo

Testing a PRC-77 backpack radio

Testing a PRC-77 backpack radio

Making a 'Signal Link' for 20m scratch-built SSB transceiver

Making a 'Signal Link' for 20m scratch-built SSB transceiver

Bonzer Mark 10 Radar Altimeter Repair and Demo

Bonzer Mark 10 Radar Altimeter Repair and Demo

MX-138 A Radar Corner Reflector from WW2

MX-138 A Radar Corner Reflector from WW2

Western Union Self Winding Clock Co. Clock Synchronized to a GPS

Western Union Self Winding Clock Co. Clock Synchronized to a GPS

Western Electric Type 500 Telephone Intercom

Western Electric Type 500 Telephone Intercom

Congreve Clock Repair Part 2

Congreve Clock Repair Part 2

Synchronizing a Mil wrist watch to WWV using an R390A receiver

Synchronizing a Mil wrist watch to WWV using an R390A receiver

Repair of a Guilford Watch Company wrist watch

Repair of a Guilford Watch Company wrist watch

Portable Acoustic Anechoic Chamber

Portable Acoustic Anechoic Chamber

Congreve Clock Repair Part 1

Congreve Clock Repair Part 1

Time of Flight Microwave Camera

Time of Flight Microwave Camera

Lensless Time of Flight Microwave Camera

Lensless Time of Flight Microwave Camera

Hamilton S16 Pocket Watch

Hamilton S16 Pocket Watch

Servicing a Waltham 15J S16 Pocket Watch

Servicing a Waltham 15J S16 Pocket Watch

Servicing a Waltham Riverside Pocket Watch

Servicing a Waltham Riverside Pocket Watch

Servicing an Elgin 7J with Hunters Case

Servicing an Elgin 7J with Hunters Case

Servicing a 15J Waltham pocket watch

Servicing a 15J Waltham pocket watch

Servicing an Elgin pocket watch

Servicing an Elgin pocket watch

Servicing a Standard Pocket Watch

Servicing a Standard Pocket Watch

Telefunken Concertino 5384W Hi-Fi Repair and Restoration

Telefunken Concertino 5384W Hi-Fi Repair and Restoration

Servicing a Hampden Watch Co Pocket Watch

Servicing a Hampden Watch Co Pocket Watch

Servicing a ladies Elgin pocket watch

Servicing a ladies Elgin pocket watch

Servicing a Waltham size 18 model 1883 pocket watch

Servicing a Waltham size 18 model 1883 pocket watch

At home short-range AM radio station

At home short-range AM radio station

Servicing a flapper-era 1920s Waltham hexagonal pocket watch

Servicing a flapper-era 1920s Waltham hexagonal pocket watch

Hammarlund HQ-170

Hammarlund HQ-170

all original ARC 5 receiver, dynamotor repair, and demonstration

all original ARC 5 receiver, dynamotor repair, and demonstration

Phased Array Demonstration System

Phased Array Demonstration System

GPS Clock

GPS Clock

Don Eyles shows his paper copy of the Lunar Module source code

Don Eyles shows his paper copy of the Lunar Module source code

Improvised RadioSport with a Ten Tec Omni A at Hamvention 2015

Improvised RadioSport with a Ten Tec Omni A at Hamvention 2015

Power Distribution Panel

Power Distribution Panel

Sentinel Radio Repair and Modification

Sentinel Radio Repair and Modification

Ancient Electronics from 1928, RCA Radiola 18 Restoration Part 2

Ancient Electronics from 1928, RCA Radiola 18 Restoration Part 2

Ancient Electronics from 1928, RCA Radiola 18 Restoration Part 1

Ancient Electronics from 1928, RCA Radiola 18 Restoration Part 1

Maritime Mobile HF Amateur Radio Station on a Freedom 28 Sailboat

Maritime Mobile HF Amateur Radio Station on a Freedom 28 Sailboat

Unboxing of the Quonset Microwave Radar Demonstration Kit

Unboxing of the Quonset Microwave Radar Demonstration Kit

BC-778-D WW2 Emergency Beacon Demo

BC-778-D WW2 Emergency Beacon Demo

Field Repair of the BC-224E WW2 Receiver at Dayton Hamvention

Field Repair of the BC-224E WW2 Receiver at Dayton Hamvention

Impulse Synthetic Aperture Radar Demonstration at X Band

Impulse Synthetic Aperture Radar Demonstration at X Band

3D Printing a Synthetic Aperture Radar Image

3D Printing a Synthetic Aperture Radar Image

UWB Impulse Radar Demo at X-Band

UWB Impulse Radar Demo at X-Band

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 4, on the air

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 4, on the air

Edison's Menlo Park Laboratory

Edison's Menlo Park Laboratory

Making an HP-606B RF Signal Generator work on a GFCI outlet

Making an HP-606B RF Signal Generator work on a GFCI outlet

Impulse Generator using an old Picosecond Pulse Labs 4015 purached from Ebay

Impulse Generator using an old Picosecond Pulse Labs 4015 purached from Ebay

Flying the Spinnaker on a Freedom 28

Flying the Spinnaker on a Freedom 28

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 3

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 3

Vintage Slot Car Racing

Vintage Slot Car Racing

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 2

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 2

X Band Range Gated FMCW SAR Imaging System

X Band Range Gated FMCW SAR Imaging System

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 1

Repairing an R-390A, the Best Comm Receiver of the Tube Era Part 1

Salvaging a Step Recovery Diode based Impulse Generator from an HP1810A

Salvaging a Step Recovery Diode based Impulse Generator from an HP1810A

Hacking the R-390A to Transcieve SSB

Hacking the R-390A to Transcieve SSB

S-Band Range Gated FMCW Rail SAR Imaging System

S-Band Range Gated FMCW Rail SAR Imaging System

Splitting the S-band Array in two for Storage

Splitting the S-band Array in two for Storage

S Band Near-Field Phased Array Imaging System

S Band Near-Field Phased Array Imaging System

RT618 US Navy Transceiver Turret Demo

RT618 US Navy Transceiver Turret Demo

X Band Rail SAR Imaging System

X Band Rail SAR Imaging System

X-Band FMCW Radar with Range Gate

X-Band FMCW Radar with Range Gate

S-Band FMCW Radar with Range Gate

S-Band FMCW Radar with Range Gate

Coffee Can FMCW Ranging Demo

Coffee Can FMCW Ranging Demo

X-Band FMCW Radar Demo

X-Band FMCW Radar Demo

X-Band CW Doppler Radar Experiment

X-Band CW Doppler Radar Experiment

hacking a police radar

hacking a police radar

Doppler radar gun demo connected to audio amplifier demonstration

Doppler radar gun demo connected to audio amplifier demonstration

Frankenstein, a vacuum tube home theater system demo

Frankenstein, a vacuum tube home theater system demo

DIY Phased Array Radar Demo for MIT IAP 2012

DIY Phased Array Radar Demo for MIT IAP 2012

Doppler Radar Explanation and Demo using the coffee can radar

Doppler Radar Explanation and Demo using the coffee can radar

Time Harmonic Electromagnetic Wave Propagation Demo

Time Harmonic Electromagnetic Wave Propagation Demo

N8ZRY's ARRL Homebrew Challenge 3 radio Demo

N8ZRY's ARRL Homebrew Challenge 3 radio Demo

N8ZRY's ARRL Homebrew Challenge 3 Radio 6 & 10m SSB/CW 4 of 4

N8ZRY's ARRL Homebrew Challenge 3 Radio 6 & 10m SSB/CW 4 of 4

N8ZRY's ARRL Homebrew Challenge 3 radio, 6 & 10m SSB/CW 3 of 4

N8ZRY's ARRL Homebrew Challenge 3 radio, 6 & 10m SSB/CW 3 of 4

N8ZRY's ARRL Homebrew Challenge 3 radio 6 & 10m SSB/CW 2 of 4

N8ZRY's ARRL Homebrew Challenge 3 radio 6 & 10m SSB/CW 2 of 4

N8ZRY's ARRL Homebrew Challenge 3 radio 6 & 10m SSB/CW 1 of 4

N8ZRY's ARRL Homebrew Challenge 3 radio 6 & 10m SSB/CW 1 of 4

Colin B. Kennedy Model 20B Console Radio, ca. 1929

Colin B. Kennedy Model 20B Console Radio, ca. 1929

Restoration of a Silvertone model 4686 console radio, ca 1937

Restoration of a Silvertone model 4686 console radio, ca 1937

Demo of Franz Hermle Westminster chime mechanism

Demo of Franz Hermle Westminster chime mechanism

phased array radar imaging a 12 oz soda can moving in free-space in near real-time

phased array radar imaging a 12 oz soda can moving in free-space in near real-time

phased array radar imaging a cylinder moving in free-space in near real-time

phased array radar imaging a cylinder moving in free-space in near real-time

Radar imaging a 12 oz soda can through a 4" solid concrete wall

Radar imaging a 12 oz soda can through a 4" solid concrete wall

Radar imaging a cylinder through a 4" solid concrete wall

Radar imaging a cylinder through a 4" solid concrete wall

Emerson 888 Pioneer Transistor Radio with Ipod Audio Input Demo

Emerson 888 Pioneer Transistor Radio with Ipod Audio Input Demo

New Haven Clock Company Tambour No. 16 movement

New Haven Clock Company Tambour No. 16 movement

A 1956 Jefferson Electric Golden Hour Electric Clock, working again

A 1956 Jefferson Electric Golden Hour Electric Clock, working again

Homebrew 20m SSB transceiver

Homebrew 20m SSB transceiver

olympic model 6-606 ipod boom box.mp4

olympic model 6-606 ipod boom box.mp4