LOEWE ALPHA-2 » History » Version 3
laforge, 10/05/2022 04:05 PM
| 1 | 1 | laforge | h1. LOEWE ALPHA-2 |
|---|---|---|---|
| 2 | |||
| 3 | The LOEWE ALPHA-2 is a BTX Decoder card (full-length 8-bit ISA) for use in IBM or comptabile PCs. It appears to date to 1988. |
||
| 4 | |||
| 5 | 2 | laforge | Contrary to the later common Software BTX decoders, the ALPHA-2 is a hardware decoder, utilizing the "ITT LOTTI" decoder ASIC. |
| 6 | 1 | laforge | |
| 7 | It supports three different modes of operation: |
||
| 8 | * _CEPT-1_ where the decoded CEPT video signal is inserted/looped into the video signal of the PC graphics card, i.e. the ALPHA-2 is situated between CGA/MGA card and the (single) Monitor |
||
| 9 | * _CEPT-2_ where the decoded CEPT video signal is displayed on a second monitor, independent from the primary monitor of the PC |
||
| 10 | * _ASCII_ where the decoded CEPT is converted/reduced to normal ASCII characters which can be shown on the normal PC screen using its regular text display |
||
| 11 | |||
| 12 | h2. Hardware |
||
| 13 | |||
| 14 | 3 | laforge | h3. Photos |
| 15 | |||
| 16 | see https://flickr.com/photos/klausnahr/albums/72157713085808526 |
||
| 17 | |||
| 18 | 1 | laforge | h3. EPROM images |
| 19 | |||
| 20 | attachment:LOEWE_ALPHA2_TMS27C512.bin |
||
| 21 | |||
| 22 | attachment:LOEWE_TWM01_TELEFON_WAHLMODUL_D8751H.bin |
||
| 23 | |||
| 24 | h2. Manual |
||
| 25 | |||
| 26 | attachment:loewe-pc-btx-alpha-handbuch.pdf |
