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Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only. |
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25th Jun 2018, 9:10 am | #21 |
Hexode
Join Date: Jul 2009
Location: Wokingham, Berkshire, UK.
Posts: 437
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Re: Radio ID please. No markings, possibly a kit set.
I built the Premier Radio (Edgware Road shop) version in this case and it was LW/MW/SW. Valve lineup 6K8, 6K7, 6SQ7,and 6V6 so I suspect this is a Pilot Radio job. Also the Premier kit I built had an autotransformer for the 6.3V heaters and a selenium rectifier for HT so was "live chassis". I developed a healthy respect for the mains, As my boss said, "Until the fuse blows you have Battersea Power Station on the end of that cable" a lesson well learnt!
John Last edited by John Caswell; 25th Jun 2018 at 9:18 am. Reason: Extra info |
27th Jun 2018, 7:42 am | #22 |
Octode
Join Date: Feb 2007
Location: Ely, Cambridgeshire, UK.
Posts: 1,976
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Re: Radio ID please. No markings, possibly a kit set.
pulled this out last night to see what valves it had
12A6 12k7 the other has lost most of its screen coating can no markings |
4th Aug 2018, 3:42 pm | #23 |
Octode
Join Date: Mar 2015
Location: Yorkshire, England.
Posts: 1,303
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Re: Radio ID please. No markings, possibly a kit set.
Ref.#19.
Here are some pictures of my kit radio, which is on the bench as I am ordering components for a Bush radio and I might as well save on postage. The selenium rectifier has been replaced with a diode and a capacitor. More info to follow.
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4th Aug 2018, 3:43 pm | #24 |
Octode
Join Date: Mar 2015
Location: Yorkshire, England.
Posts: 1,303
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Re: Radio ID please. No markings, possibly a kit set.
...and more.
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4th Aug 2018, 3:59 pm | #25 |
Octode
Join Date: Mar 2015
Location: Yorkshire, England.
Posts: 1,303
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Re: Radio ID please. No markings, possibly a kit set.
V1 no markings, possibly 6K7.
V2 6J7. V3 6V6. Can anyone confirm this as a kit radio or a commercial item? Can anybody provide a circuit diagram? Currently working but has a lot of buzz / interference, opening the fridge door makes it go crazy! (it's the light that's causing the problem).
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4th Aug 2018, 6:04 pm | #26 |
Dekatron
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,580
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Re: Radio ID please. No markings, possibly a kit set.
I'll stake 99% that it's a kit. Lots of kit sets at the time used that cabinet, a variation of a Pilot Little Maestro from around 1946. It could be a Barton or a Premier. Yours is a TRF so probably good for local stations.
I have a Barton using an identical cabinet but it is superhet with three wavebands. The only circuit that will exist for yours will be the one supplied with the kit. You could try a Google search using Barton kit set or Premier kit set and see what comes up. However it was common for them to use whatever valves were available cheaply at the time so you may not find an exact circuit. One Premier TRF used a small transmitting valve as an output valve! With that valve complement it's likely to be 6K7 RF amp, 6J7 anode bend detector (or possibly leaky grid detector) and the 6V6 as output.
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5th Aug 2018, 9:40 am | #27 |
Octode
Join Date: Mar 2015
Location: Yorkshire, England.
Posts: 1,303
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Re: Radio ID please. No markings, possibly a kit set.
Thanks Sideband, I'll do some more research.
First thing on the list will be a snubber to kill the interference from the fridge... And the central heating and the fluorescent lights and the dishwasher!
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5th Aug 2018, 1:47 pm | #28 |
Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
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Re: Radio ID please. No markings, possibly a kit set.
There's one of the Premier 3 valve TRF schematics here:
https://vintage-radio.net/forum/atta...0&d=1144184530 It would appear that the component values are also included in what might be the same schematic available from here: https://www.radiomuseum.org/r/premie...radio_kit.html Anode bend detector in the above schematics, the cathode bias resistor in series with the detectors cathode is the give away. Lawrence. |
5th Aug 2018, 7:40 pm | #29 | |
Rest in Peace
Join Date: Sep 2010
Location: Ripley, Derbyshire, UK.
Posts: 785
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Re: Radio ID please. No markings, possibly a kit set.
Quote:
Make sure the aerial series capacitor is a high-voltage type for safety's sake. Is there a capacitor across the mains input? If not, this can sometimes help to reduce locally generated hash. Tony. |
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