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Total 6 documents matching your query.

1. LF: PORTADYNE (score: 1): Author: "hamilton mal" <[email protected]>; Date: Tue, 21 Sep 2004 10:02:29 +0100; Hi All Has anyone ever heard of a vintage radio called a PORTADYNE. Radio maybe 90 - 100 years old. It has 4 valves, which are missing. Unusual valve bases 4 pin with one pin offset, bases look small; /rsgb_lf_group-archives/html/rsgb_lf_group/2004-09/msg00134.html (9,167 bytes)
2. LF: PORTADYNE (score: 1): Author: "hamilton mal" <[email protected]>; Date: Tue, 21 Sep 2004 16:48:04 +0100; Hi All. Thanks to the response about the Portadyne radio. Here are the answers to the questions asked. Tech details: 4 valves Battery leads consist of 2 leads poss LT, 2 more for HT and a couple of o; /rsgb_lf_group-archives/html/rsgb_lf_group/2004-09/msg00140.html (12,480 bytes)
3. Re: LF: PORTADYNE (score: 1): Author: [email protected]; Date: Tue, 21 Sep 2004 18:28:26 EDT; Hi Mal This sounds similar to a set my father had when I was small (My D.O.B 1943). I think it was known as a "picnic portable". There should be space for a 2 Volt accumulator (glass jar approx 2.5in; /rsgb_lf_group-archives/html/rsgb_lf_group/2004-09/msg00144.html (10,752 bytes)
4. LF: PORTADYNE (score: 1): Author: "hamilton mal" <[email protected]>; Date: Wed, 22 Sep 2004 16:21:40 +0100; Hi All Tnx agn for all the info and photos. The age seems to be around 1927-1930. I still need a cct diagram and the valve line up. Some have suggested the valve types. They seem to be B4 type accord; /rsgb_lf_group-archives/html/rsgb_lf_group/2004-09/msg00153.html (9,290 bytes)
5. LF: Portadyne (score: 1): Author: "hamilton mal" <[email protected]>; Date: Thu, 23 Sep 2004 13:33:43 +0100; Hi All Thanks to all that responed. Most of the info received is historical but no real technical info except one German Amateur that seems knowledeable. One Uk amateur suggested that I join the vint; /rsgb_lf_group-archives/html/rsgb_lf_group/2004-09/msg00161.html (9,043 bytes)
6. LF: PORTADYNE (score: 1): Author: boffin1 <[email protected]>; Date: Fri, 24 Sep 2004 13:59:58 -0400; Dear Mal Re your old radio, if it has valves, other than a diode, it is unlikely to be quite as old as has been suggested. With 73 from one old man to another om, Roger.; /rsgb_lf_group-archives/html/rsgb_lf_group/2004-09/msg00174.html (8,716 bytes)

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