{"id":16160,"date":"2024-03-01T10:41:03","date_gmt":"2024-03-01T10:41:03","guid":{"rendered":"http:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/?p=16160"},"modified":"2024-03-25T09:01:00","modified_gmt":"2024-03-25T08:01:00","slug":"btx-decoder-modul-ii-1","status":"publish","type":"post","link":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/","title":{"rendered":"BTX Decoder Modul II #1"},"content":{"rendered":"<p><strong>BTX Decoder Modul II #1<\/strong><\/p>\n<p>Basically a 6800-based computer connected to the expansion port. Bildschirmtext (BTX) was a German online service that existed from 1983 to 2001.<\/p>\n<p>To use the service with a C64, this decoder cartridge was required, which connected to the expansion port.<\/p>\n<p>The cartridge is actually a Siemens product, it\u2019s just Commodore-branded. The sticker says:<\/p>\n<ul>\n<li>SIEMENS<\/li>\n<li>Universal Btx Decoder<\/li>\n<li>S30817-S721-B101-7\/02 EX\/W8<\/li>\n<li>A30817-X732-B100-4-11<\/li>\n<li>Commodore Artikel Nr. 606491<\/li>\n<\/ul>\n<p>The box with the Deutsche Bundespost logo is the registration (A506 131V). At the time, only explicitly Post-approved devices and software were allowed to be used for participating in Bildschirmtext.<\/p>\n<p>(This is the \u201cBTX Decoder Modul II\u201d, even though the cartridge doesn\u2019t say so. There was a completely different first model.)<\/p>\n<p>There are three DIN ports at the back, from left to right:<br \/>\n* Modem: This connects to the proprietary Deutsche Bundespost \u201cDBT-03\u201d modem (1200 baud down, 75 baud up).<br \/>\n* RGB: This is for connecting an analog RGB monitor.<br \/>\n* FBAS: This port is identical to the C64 video port and allows using a C64 monitor.<\/p>\n<p>The Post-approval for participating in Bildschirmtext required the decoder to be able to show a pixel-exact image of the service (480\u00d7240 pixels with 32 out of 4096 colors)<sup id=\"fnref:1\"><a href=\"https:\/\/www.pagetable.com\/?p=1310#fn:1\" rel=\"footnote\">1<\/a><\/sup>. Since the VIC-II in the C64 could not meet this, the decoder cartridge had its own video controller and therefore its own video ports.<\/p>\n<p>The board reveals that the cartridge doesn\u2019t only have its own video chip, it also has its own CPU, RAM and ROM \u2013 it\u2019s a complete computer that only connects to the C64 in order to reuse the keyboard and the disk drive.<\/p>\n<p>These are the major chips:<br \/>\n* Motorola MC6803: a 6800-family microcontroller<br \/>\n* Motorola MC68HC34: Dual-Port Memory Unit<br \/>\n* 64 KB RAM (two 41464 64Kx4 DRAM)<br \/>\n*\u00a0<a href=\"https:\/\/www.pagetable.com\/docs\/btx_decoder_modul\/c64_btx_decoder_ii.bin\">32 KB EPROM<\/a><br \/>\n* D65040GF206: NEC \u00b5PD65000 series CMOS gate array<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div data-carousel-extra='{\"blog_id\":1,\"permalink\":\"https:\\\/\\\/www.intexsound.de\\\/Commodore-Museum-Mannheim\\\/2024\\\/03\\\/01\\\/btx-decoder-modul-ii-1\\\/\",\"likes_blog_id\":false}' id='gallery-1' class='gallery galleryid-16160 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/20240229_160004-2\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_160004-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16533\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_160004-1.jpg\" data-orig-size=\"4032,2268\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;SM-G973F&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1709218804&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;6&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.01&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"20240229_160004\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_160004-1-300x169.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_160004-1-1024x576.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/20240229_160035\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_160035-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16174\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_160035.jpg\" data-orig-size=\"4032,2268\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;SM-G973F&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1709218836&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.32&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.0071942446043165&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"20240229_160035\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_160035-300x169.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_160035-1024x576.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/20240229_154313\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154313-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16168\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154313.jpg\" data-orig-size=\"4032,2268\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;SM-G973F&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1709217793&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.32&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.0087719298245614&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"20240229_154313\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154313-300x169.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154313-1024x576.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/20240229_154816\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154816-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16170\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154816.jpg\" data-orig-size=\"4032,2268\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;SM-G973F&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1709218096&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;6&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.03030303030303&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"20240229_154816\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154816-300x169.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154816-1024x576.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/20240229_154412\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154412-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16169\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154412.jpg\" data-orig-size=\"4032,2268\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;SM-G973F&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1709217853&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.32&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.0063694267515924&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"20240229_154412\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154412-300x169.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_154412-1024x576.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/20240229_155231\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_155231-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16172\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_155231.jpg\" data-orig-size=\"4032,2268\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;SM-G973F&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1709218351&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.32&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.0074074074074074&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"20240229_155231\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_155231-300x169.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_155231-1024x576.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/20240229_155146\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_155146-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16171\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_155146.jpg\" data-orig-size=\"4032,2268\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;SM-G973F&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1709218306&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.32&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.0062111801242236&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"20240229_155146\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_155146-300x169.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_155146-1024x576.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-2\/20240229_161106\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_161106-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16189\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_161106.jpg\" data-orig-size=\"4032,2268\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;SM-G973F&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1709219467&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;6&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.03030303030303&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"20240229_161106\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_161106-300x169.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_161106-1024x576.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/board_top\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/board_top-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16176\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/board_top.jpg\" data-orig-size=\"2831,3459\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"board_top\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/board_top-246x300.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/board_top-838x1024.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/board_bottom\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/board_bottom-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16175\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/board_bottom.jpg\" data-orig-size=\"2916,3540\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"board_bottom\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/board_bottom-247x300.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/board_bottom-843x1024.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/screenshot\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/screenshot-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16164\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/screenshot.jpg\" data-orig-size=\"4032,3024\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"screenshot\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/screenshot-300x225.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/screenshot-1024x768.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/20240229_153726\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_153726-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16167\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_153726.jpg\" data-orig-size=\"4032,2268\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;SM-G973F&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1709217447&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.32&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.0055865921787709&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"20240229_153726\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_153726-300x169.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_153726-1024x576.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n<p>box restoration:<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-2 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-2 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-2 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-2 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div data-carousel-extra='{\"blog_id\":1,\"permalink\":\"https:\\\/\\\/www.intexsound.de\\\/Commodore-Museum-Mannheim\\\/2024\\\/03\\\/01\\\/btx-decoder-modul-ii-1\\\/\",\"likes_blog_id\":false}' id='gallery-2' class='gallery galleryid-16160 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/20240229_120757\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_120757-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16165\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_120757.jpg\" data-orig-size=\"4032,2268\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;SM-G973F&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1709204877&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.32&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.01&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"20240229_120757\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_120757-300x169.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_120757-1024x576.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2024\/03\/01\/btx-decoder-modul-ii-1\/20240229_135340\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_135340-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" data-attachment-id=\"16166\" data-orig-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_135340.jpg\" data-orig-size=\"4032,2268\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;SM-G973F&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1709211221&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.32&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.0062111801242236&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"20240229_135340\" data-image-description=\"\" data-medium-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_135340-300x169.jpg\" data-large-file=\"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/hegatad\/uploads\/2024\/03\/20240229_135340-1024x576.jpg\" \/><\/a>\n\t\t\t<\/dt><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>BTX Decoder Modul II #1 Basically a 6800-based computer connected to the expansion port. Bildschirmtext (BTX) was a German online service that existed from 1983 to 2001. To use the service with a C64, this decoder cartridge was required, which connected to the expansion port. The cartridge is actually a Siemens product, it\u2019s just Commodore-branded. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16533,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"cybocfi_hide_featured_image":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[60,64,117],"tags":[],"class_list":["post-16160","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aaa-all-others","category-cartridges","category-originalboxes"],"_links":{"self":[{"href":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/wp-json\/wp\/v2\/posts\/16160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/wp-json\/wp\/v2\/comments?post=16160"}],"version-history":[{"count":0,"href":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/wp-json\/wp\/v2\/posts\/16160\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/wp-json\/wp\/v2\/media\/16533"}],"wp:attachment":[{"href":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/wp-json\/wp\/v2\/media?parent=16160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/wp-json\/wp\/v2\/categories?post=16160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/wp-json\/wp\/v2\/tags?post=16160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}