Records of the NRAO > Green Bank WV Operations Series > 300 Foot Telescope Unit > 300 Foot Telescope Time Capsule Subunit

Collection Items

Photograph - Opening Time Capsule, 2015
Description: Some items from the time capsule
Start Date: 2015-10-13

Photograph - Opening time capsule
Description: Bob Simon, Rich Lacasse, and Bob Vance (and attendees in the background) examine time capsule treasures
Start Date: 2015-10-13

Photograph - Opening time capsule
Description: Rich Lacasse shows off the pack of punched cards containing a 300 foot observing program.
Start Date: 2015-10-13

Photograph - Opening time capsule
Description: Bob Vance removes an item from the capsule.
Start Date: 2015-10-13

Photograph - Opening time capsule
Description: Bob Vance, Bob Simon, and Rich Lacasse peer into the time capsule at its contents
Start Date: 2015-10-13

Photograph - Opening time capsule
Description: The contents of the time capsule - in pristine condition
Start Date: 2015-10-13

Photograph - Opening time capsule
Description: Daryl Shinaberry and Rusty Taylor remove the lid; an audible "whoosh" was heard when the seal was broken.
Start Date: 2015-10-13

Photograph - Opening time capsule
Description: Daryl Shinaberry and Rusty Taylor remove the time capsule from its burial place outside the 300 foot control building.
Start Date: 2015-10

Plaque marking location of 300 ft time capsule

Clear Aperture Feed on the 300-foot Telescope
Start Date: 1987-09-22

Start Date: 1986-01-22

Start Date: 1984-08-02

Start Date: 1987-09

Start Date: 1987-04

140-ft Cassegrain Receiving System
Start Date: 1987-02

List of 300’ foot operators, 1962-1987
Start Date: 1962

300 foot control room
Description: 300 foot control room

300 foot control room
Description: 300 foot control room
Start Date: 1972-01-24

Start Date: 1987-09-17

Group Photo - Green Bank staff, with pdf identification guide
Start Date: 1987-09-14

NRAO Front End Box Status
Start Date: 1987-10

Start Date: 1987

Terminal racks at 140 foot
Description: 140 foot terminal racks
Start Date: 1987-08

ModComp Computers at 140 foot
Description: 140 foot ModComps
Start Date: 1987-08

Console at 140 foot
Description: 140 foot console
Start Date: 1987-08

Keypunch Machine at 140 foot
Description: Keypunch machine at 140 foot
Start Date: 1987-08

Start Date: 1980

Start Date: 1987-07-23

Start Date: 1987-07-23

Start Date: 1987-09-17

Tapes made during 300 foot 25 year celebration
Start Date: 1987-09-23

5 GHz Source Variability and the Gain of the 300 Foot Telescope
Start Date: 1983

Amplifier Gain and Noise Temperature vs Frequency
Start Date: 1980-01-29

Start Date: 1980-04

Start Date: 1980-04

Description: These are typical of switching transistors used in 50s and 60s. Manufacturer descriptions and specs for integrated circuits AM29516 16x16 multiplier and 74F374 octal D type flip-flop; SE 555 timer; AD 741 op-amp.
Start Date: 1987-09-28

Upconverter
Start Date: 1982

Interferometer console
Description: Interferometer console
Start Date: 1987-08

Chart recorder at Interferometer
Description: Chart recorder at interferometer
Start Date: 1987-08

300 foot as viewed from 140 foot
Description: 300 foot viewed from the 140 foot, ca. 1987

DDP 116 computer at Interferometer
Description: DDP 116 computer at Interferometer
Start Date: 1987-08

Chart recorder at 300 foot
Description: 300 foot chart recorder
Start Date: 1987-08

300 foot control room computers and racks
Description: 300 foot control room. L to R: 1 - Operators TV, H316 computer CRT; 2 - H316 computer rack; 3 - Mass Comp interface rack; 4 - Mass Comp computer; 5 and 6 - IDT tape drive racks; 7 - Digital continuum receiver rack. Photo from Dwayne Schiebel's…
Start Date: 1987-08

300 foot Lab
Description: 300 foot lab in Green Bank, ca. 1987

FET Amplifier Lab
Description: FET amplifier lab in Green Bank, ca. 1987

Interferometer Lab
Description: Interferometer lab in Green Bank
Start Date: 1987-08

Digital Lab
Description: Digital lab in Green Bank
Start Date: 1987-08

First 300' Telescope Control Program from the Digital Lab
Start Date: 1968

Start Date: 1987-07-21

Interferometer materials related to U.S. Naval Observatory operation of interferometer
Start Date: 1979

Start Date: 1987-07

Start Date: 1986-02

Silver Anniversary of 300 Foot Telescope, Open House, National Radio Astronomy Observatory, Green Bank, WV, September 23, 1987, 10 AM to 4 PM
Start Date: 1987-09-23

Start Date: 1987-09-05

Start Date: 1966-02

Spectral Processor for the 300 Foot Telescope - Overview and Progress Report
Start Date: 1987-03-10

An FFT Spectrometer with Pulsar Dedispersion Capabilities
Start Date: 1987-01

Honeywell 316 Telescope Control Computer
Description: Honeywell 316 telescope control computer for 300 foot
Start Date: 1978-02-02

DDP 116 Data Recording and Control Computer
Description: 300 foot operator Ed Burke adjusting DDP 116 data recording and control computer
Start Date: 1977-09-19

Control Console used until Mass-Comp computer came on line in 1986
Description: 300 foot control console used until Mass-Comp came on line in 1986. Operator Ed Burke at console
Start Date: 1977-09-19

Mod-comp Data Analysis Computer
Description: 300 foot operator Ed Burke shows equipment to visiting observer Dave Shaffer
Start Date: 1977-09-19

Start Date: 1979-05

3 K Helium Refrigerator
Description: 3 K helium refrigerator
Start Date: 1985-04

Collection Tree