Video History Project

Bibliography

Schematics and notes in regard to First Jones Frame Buffer from Matthew Schlanger to Peer Bode (11 pages)

Authors
Matthew Schlanger; David Jones
Publisher
Experimental Television Center
Place
Owego, New York
Type
Schematics, Manucripts
ETC archive
ETC1362

Abstract

Schematics and notes in regard to First Jones Frame Buffer from Matthew Schlanger to Peer Bode. (11 pages).

https://archive.org/details/ETC1362

Cite this record

Matthew Schlanger; David Jones. Schematics and notes in regard to First Jones Frame Buffer from Matthew Schlanger to Peer Bode (11 pages). Experimental Television Center. .

Download RIS citation
From the Experimental Television Center archive

ETC1362

Schematics and notes in regard to First Jones Frame Buffer from Matthew Schlanger to Peer Bode. (11 pages).

Submit a change or correction

If unchecked, this will appear as a public note on the site immediately. Spam filters may delay publication, but all submissions are reviewed by staff.

Changes will be reviewed and integrated as time permits. For major changes, feel free to email [email protected].

Last modified 22 June 2011

Related records

  • Jones Frame Buffer Schematics Bibliography

    Jones Frame Buffer Schematics (pp. 1-9 of 9, 2 copies, 03.28.1984).

  • Jones and Brewster Documentation (Frame Buffer and D+7A Input/ Output) Bibliography

    Jones and Brewster Documentation (Frame Buffer and D+7A Input/ Output). Frame Buffer Memory Board (Membuf) (pp. 1-3 of 3, Parts List- 08.1984). Color Channel (Colorchan-1) (pp. 1-6 of 6, 06.11.1984). Voltage Controlled Amplifier (VCA) for Keyer (2 copies). Buffer Input/ Output (Buf I/O) (pp. 1-9 of …

  • ETC 1972-73 Tools

    While working for the Experimental Television Center the author and David built the first four Jones Frame Buffers; the pictured unit is the author's and may be the only one remaining in the original card rack after David rewired most into newer, larger boxes. The unit adds second-level control and 2v differential video inputs and output with a plexiglass panel; it was initially controlled by a Sinclair ZX81 with programs saved to audio tape and later adapted for control from an Amiga 1000. The buffer includes an internal keyer, four memory boards providing 64 frames and a pseudo-color option; Amiga Basic routines were compiled to C but required unbuilt libraries for blank switching, producing noisy routines.

  • Jones Frame Buffer in Experimental Television Center Studio System Manual Tools

    The Jones Buffer is a black-and-white image buffer that operates standalone or under Z-80 computer control; front-panel controls allow real-time digitization, single-page grab/store and a keyer-like selective storage between live and stored signals. Memory totals 128,000 bytes (256×256 resolution yields 16 pages) and the buffer outputs a digital signal converted to analog; video I/O is routed via a matrix with two inputs (video and clip) and one output. In stand-alone mode it supports software such as STROBE64 and TESPNEW and can be routed with the CAT buffer; in computer mode it requires buffer-specific programs (e.g., NEWGRAB) and occupies the Z80 and D+7A, preventing CAT use.

  • Jones Keyer Schematics Bibliography

    Jones Keyer Schematics. Packet contents follow: Parts List- Power Supply and Main Frame, and Internal Sync Option, Integrated Cicuits (National Semiconductors), Transistors, Diodes, Capacitors, Resistors, Sync Circuitry Part 1 Schematics, Part 2 (Vertical Blanking) Schematics, Power Supply Schematic…

  • Jones Colorizer Schematics Bibliography

    Jones Colorizer Schematics. Packet 1: RGB (Red, Green, Blue)- Mixer Schematics (pp. 1-4 of 4), plus Color Generator- 1 (RGB-Mix) Component Side (circuit diagram, original blueprint). Packet 2: Color Channel-1 Schematics (pp. 1-6 of 6, 06.11.1984).