Chieftain by Motor Spares Ltd., Melbourne
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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Marcc I actually changed that electro yesterday I did not have a 2μF in my stock so I picked one up at Jaycar. No testing was done till I changed it.
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6689
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Looking forward to seeing that set's case.
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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GTC The case appears on page three. I am a little perplexed by this one but its a learning experience apparently I was counting the pins wrong and was testing the wrong ones lol oh well now I know.
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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Well I got the case back last night and had a look into the inside top and low and behold there is a loop antenna well hidden there . I think it may be on the outside but well hidden by the leatherette covering the outside of the case. what I will do is attach some lugs to it so it can be easily serviceable in the future. who ever had it before had donned his stripped apron and did a bit of butchery to it but its all fixable.
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Location: Belrose, NSW
Member since 31 December 2015
Member #: 1844
Postcount: 2373
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Aha!
See my other post about loop antennas, already posted when I saw this!
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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One question? what pins are the speaker wires connected to on the output valve?
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Location: Belrose, NSW
Member since 31 December 2015
Member #: 1844
Postcount: 2373
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Assuming the speaker transformer is on the speaker and we are talking about the primary of the transformer, pins 3 (anode) and 4 (G2) of the 1Q5.
Pin 4 should also be connected to B+, btw.
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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I have double checked all that and they are correct. The next step is to disect the on/off volume switch and give it a clean. I do get the ABC clearly but no volume at all. The volume pott has no effect at all on it. Three things I am going to check are the switch, Resistors and valves ( Heater filaments are ok ) .
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Location: Belrose, NSW
Member since 31 December 2015
Member #: 1844
Postcount: 2373
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ABC is coming in courtesy of the crystal set syndrome - picked up by the 1H5. You are close to the transmitter.....
So the front end - 1R5, 1N5 - is not working or is somehow disconnected it would seem.
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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I have been advised that the problem may be in the volume control . so if I have the energy tonight when I get home I may pull it apart and give it a clean.
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Location: Belrose, NSW
Member since 31 December 2015
Member #: 1844
Postcount: 2373
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Quick way to tell before you pull it apart:
Set the volume half-way.
With the shaft facing you and the 3 pins facing up, short the far left pin to the centre. If the pot is open circuit that will bypass it and give you full volume.
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Location: Hobart, TAS
Member since 31 July 2016
Member #: 1959
Postcount: 544
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There is an "Imperial Vintage Radio" on Ebay at present, which from the pictures, appear to have a very similar chassis.
Maybe worth investigating.
JJ
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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It certainly looks similar which leads me to the first question. Who Made these , I don't think Motor spares Melbourne made them . They just branded them.
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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Well I have sent this one to the doctor for a specialist look. There is one thing that I really need to do is read your comments with much deeper insight, maybe I'm just plain tired but I have been missing some very important clues but in reality that's why this site is so important because the information is there for us to read and read and read.
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2158
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Well Marcc is going to be chuckling to himself and saying I told you so lol. This little radio is working very well now. We found 4 resistors that were duds and it is now performing very well. We had it running strongly at 65 volts high tension when it should be 90 volts . So all I have to do now is tidy it up and put it back together. Oh and there was a broken wire on the switch as well.
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