Domesday Duplicator

Domesday Duplicator

The Domesday Duplicator is a USB 3.0 hardware solution for capturing LaserDisc RF at 40msps 10-bit suitable for use capturing many FM RF based formats as well.

Its documentation orignally lived on Domesday86.com project pages but is now moved onto GitHub.

Docs

• Harry's Current Cross-platform Usage Docs

• How to Order a Domesday Duplicator (DdD) for Dummies

• Windows 10 Firmware Package

• Windows 10 Firmware & USB Driver Setup

• Simons DomesDay Duplicator Wiki - Hardware & Software Development

• FLAC RF Data Compression Guide

Physical Gain Control

0000 is 1-2-3-4 dips, In orientation to bottom numbers up is 1 and down is 0.

All selected in this up position is 1111 or 2.02 Minimum Gain When dip’s 2-3-4 are down it's 1000 this is the maximum gain of 8.5, the table below shows all possible positions.

Configuration	Switch Position	Gain
15	1111	2.02
7	0111	2.17
11	1011	2.27
13	1101	2.45
3	0011	2.54
14	1110	2.59
5	0101	2.79
6	0110	3.02
9	1001	3.04
10	1010	3.34
1	0001	3.8
12	1100	4
2	0010	4.4
4	0100	6
8	1000	8.5

Software

The software is a GUI based capture tool, with a serial control interface for LaserDisc players.

Linux Install / MacOS Builds / Windows Builds

Note!:

Enable RMS Messurement to have a live readout.

Enable stop captures on sequence mistmach if your seeing dropped samples with your setup.