- published: 05 Feb 2015
- views: 1443
This is a "Westminster" portable radio from around 1946. It is believed to have been made by Belcher Ltd, of London, although there is no attribution to them anywhere on or inside the set. It is model ADPG and contains four valves. There is a circuit diagram (fortunately for me) inside the back cover. Originally designed to run from a large dry battery providing 1.5V LT and 90V HT, I have built a mains adaptor into the base where the battery would have fitted. Underneath the radio is a turntable that allows it to be rotated to get the best signal. Little needed to be done to get this working. I replaced the smoothing capacitor, a couple of resistors, and all the valve sockets, which were cheap and nasty. Trimmed allignment, Most of the work was building the power adaptor. Astute ...
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Interview with University of Westminster Journalism BA Honours graduate and Broadcast Journalist for BBC Radio 1 and BBC Newsbeat, Jimmy Blake. Find out more about studying Journalism at http://www.westminster.ac.uk/journalism
This Westminster radio, dating from around 1955, was left untouched, and forgotten, on a shelf for just over twenty-five years. Regardless of not knowing its model number, and not being able to locate a circuit diagram, I decided to go ahead and repair it. Just before clearing space on my bench, I began thinking it might be beneficial to a number of Vintage Radio enthusiasts, who have a few years’ experience of applying their knowledge of electricity, and pre-solid state electronics, if I used my Westminster radio to simulate a radio repair scenario where a repairer, owing to experiencing certain difficulties locating authentic components, has no alternative but to fit substitute parts. I will remain rigid to making alterations/modifications to the audio output pentode valve, and HT (hi...
If there is a specific requirement to make an alteration/modification to a radio deemed currently not ready to apply mains voltage, and there are doubts concerning DC voltage potential possibilities, possible current draw, and possible component values, owing to unavailability of a circuit diagram, it is always a good idea to compare the radio with at least one other working radio that has the same valve line-up. By recording voltages, current draw, and component values (where applicable), relating to DC, HT rails for example, one will get some idea of where to begin when calculating likely values of required resistances.
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BBC Radio 4's Week in Westminster discusses online campaigning in the EU referendum. Featuring Jag Singh (Conservatives In), Mark Pack (Blue Rubicon), and Tom Harwood (Students for Britain). Presented by Jim Waterson (Buzzfeed). www.studentsforbritain.org
Although I have at least implied, in this video, this Vintage Radio repair is complete, it will only be complete once it has been left to run on soak-test. The reason for soak-testing is to determine whether further repairs, adjustments, and subsequent soak-tests, will be necessary. Length of time is discretionary but it is usual to leave a Vintage Radio running on soak-test, adjusted to a moderate level of volume, and within distance of hearing and sight, for two-to-three hours per day for a full week. A repair may be deemed once a Vintage Radio has ran ‘trouble-free’ for at least the duration of that time.
Recorded on Wednesday 7 March 2012 live in the studio
-uploaded in HD at http://www.TunesToTube.com