{"id":7512,"date":"2017-07-04T10:53:00","date_gmt":"2017-07-04T00:53:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2017\/07\/04\/the-radio-laboratory-at-bandung-java-ssb-in-1927\/"},"modified":"2025-07-21T23:02:43","modified_gmt":"2025-07-21T13:02:43","slug":"the-radio-laboratory-at-bandung-java-ssb-in-1927","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2017\/07\/04\/the-radio-laboratory-at-bandung-java-ssb-in-1927\/","title":{"rendered":"The Radio Laboratory at Bandung, Java — SSB in 1927"},"content":{"rendered":"
<\/a><\/div>\n


<\/b> Anton PA0AST alerted me to this important piece of radio history: <\/b>

<\/b> The first phone radio between Indonesia , the city of Bandung ( Dayeuh Kolot, Jalan Radio 1 ), and Holland , Radio Kootwijk were made in SSB already in 1927… Before that time they had only a CW 1 Mega Watt spark transmitter in Malabar.
One of the receivers still exists in a museum in Amsterdam (cdvandt ). It is 3 meters in length and 2 meter in height…. All made with plug-able units with 1 tube inside .<\/b>
<\/b>
The transmitter was 10 kW. Ua was 6kV was made by dynamotors. Transmitting Tubes locally made by craftsman in a workshop. Both buildings as well in Bandung and in Kootwijk still exists .<\/b>

<\/b> Anton<\/b>

<\/b> The old images come from: <\/b>
http:\/\/www.cdvandt.org\/bandung-lab-kwk.htm<\/a><\/b>

<\/b> <\/p>\n

<\/a><\/div>\n

At the other end was Radio Kootwijk in Holland. <\/b>

<\/b> Before you jump to the English version of the page, be sure to check out the Drone video of the site, and the audio file of the Morse transmissions: <\/b>

<\/b> http:\/\/radiokootwijk.nu\/<\/a> Thanks to PA0JWU for the wonderful site.<\/b>

<\/b> <\/p>\n

<\/a><\/div>\n

Quite an impressive shack! My favorite part is the note indicating that local residents cleaned out the cooling pool and used it for swimming each summer.<\/b><\/p>\n","protected":false},"excerpt":{"rendered":"

Anton PA0AST alerted me to this important piece of radio history: The first phone radio between Indonesia , the city of Bandung ( Dayeuh Kolot, Jalan Radio 1 ), and Holland , Radio Kootwijk were made in SSB already in 1927… Before that time they had only a CW 1 Mega Watt spark transmitter in … Continue reading “The Radio Laboratory at Bandung, Java — SSB in 1927”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":7513,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[218,166,100,31,72],"tags":[],"class_list":["post-7512","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-indonesia","category-netherlands","category-old-radio","category-radio-history","category-short-wave-listening"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7512","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=7512"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7512\/revisions"}],"predecessor-version":[{"id":7516,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7512\/revisions\/7516"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/7513"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=7512"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=7512"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=7512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}