Reliance Sky-Raider from Ebay
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Location: NSW
Member since 10 June 2010
Member #: 681
Postcount: 1301
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Location: Wangaratta, VIC
Member since 21 February 2009
Member #: 438
Postcount: 5389
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Sometimes you can predict, by which winding fried, what scenario caused it. I must say the at it is only in recent times, that I have seen more than one transformer fail in a short period. Up until around 2010, it was only a couple.
There is one variety used in the 132L & several other Philips sets around its era, where the windings exit the side & mine was one that did it: I was saved.
I would note that when repairing: Here there is only one standard be it an internal, or commercial repair. I know that wax paper capacitors are not reliable and leaving them in, is tempting fate and will adversely effect the performance. Experience has and still is in practice constantly reminding me that wax paper caps leak, more often than not well below 1Meg. So it is actually pointless and risky fault finding with them & tired electrolytic caps anywhere: They are most likely to be the problem. The price of a new cap does not justify leaving a leaking cap in circuit.
Methodology is everything. In a commercial fix, my business depends on making the thing as reliable as I can. Rework is not good.
Do note that If you have old test equipment: They use the same parts. Viz: Avo 7X; two Palec VCT; Heathkit Oscilloscope & Grid Dip meter; Leader Sig gen (several) (Oil filled caps); Peak 200H (Audio output cap) Vesta Ignition Coil Tester: Are all bits of test equipment that I have had, or have had come in, where the old caps & other components in some, have failed.
Marc
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Location: Clare, SA
Member since 27 March 2016
Member #: 1894
Postcount: 510
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Whoops, so sorry guys not oc but dead short! It has continuity, zero ohms straight through it, killed the rectifier valve too!
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Location: Belrose, NSW
Member since 31 December 2015
Member #: 1844
Postcount: 2476
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You didn't use a DBT, did you?
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Location: Wangaratta, VIC
Member since 21 February 2009
Member #: 438
Postcount: 5389
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Seen that & reason Number1 for never powering an unknown set. I did note recently the effort of two, one who was told never to power. That did not fry the transformer but it destroyed an #80.
Old unused electrolytic's can be open but more often than not they present as a short after loosing "form" (polarity). Never be of the illusion that only B+ goes short. I have seen the 5V rail of a 5Y3 short & it only presented when DC was generated.
Turning a 5Y3 sideways can cause a spectacular fail (short) # 80 should do the same.
If its a B+ short some 6X5's were notorious for shorting. disconnect all B+ electrolytic caps, & beware if its got top trimmer IF's. One trimmer screw is often on the primary of the IF can feeding a plate. (live) & there can be a short if the can top is damaged.
Marc
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2174
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Um when did 2FC change its name. When was it not used as a station marker?
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2174
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702 ABC Sydney was Australia's first full-time radio station. Using the call-sign 2SB, the station went to air at 8.00pm on November 23, 1923. Another station, 2FC, which later became Radio National, went to air two weeks later. As a result of listener confusion, 2SB was later renamed 2BL. Both stations became part of the Australian Broadcasting Commission (ABC) when it was formed on July 1, 1932.
Although over half of programs on the station's in the early years were music-based, there were also sports programs (including the famous "synthetic" cricket broadcasts), along with live-to-air drama, and later, schools broadcasts.
From 1932 to 1936 ABC stations in each State produced their own news bulletins, although they were mostly read directly from the newspapers. It wasn't until 1947 that the ABC established its own independent news service.
Over the years, there were two significant shifts in program focus. The first came in 1946 when 2BL became a 'National Programme' and featured serious items and 2FC carried an 'Interstate Programme' which had a lighter emphasis. From 1946 until 1988, 2BL also carried parliamentary broadcasts.
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Location: Belrose, NSW
Member since 31 December 2015
Member #: 1844
Postcount: 2476
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Pity ABC news is not still independent.
"Without bias or agenda!" ??
Who do they think they're kidding?
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7395
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A lot of older people still refer to 2BL as 2BL. It was played over the MATV system at a hospital I used to work at and for some reason, if it wasn't available, I'd get a lot of complaints from the patients. It's callsign, as far as I know, is still 2BL but the station ident is ABC 702. 2FC is now 2RN and the station ident is Radio National. Parliament is broadcast on 2PB (684kHz I think) and the station ident is ABC News Radio.
On the issue of ABC bias - Emma Alberici is in hot water for seemingly inaccurate reporting.
https://www.theaustralian.com.au/business/media/abc-revise-emma-albericis-analysis-after-removing-it-last-week/news-story/3a85134ee3932e4b4e1f4a90152838a8 (Paywall)
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A valve a day keeps the transistor away...
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Location: Belrose, NSW
Member since 31 December 2015
Member #: 1844
Postcount: 2476
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Did it have one of those black boxes that put the radio callsigns on the video channels?
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7395
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Yep, we had four radio stations at that place and there was a character generator to display the callsigns on the tellies - one for each station. They were in jiffy boxes.
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A valve a day keeps the transistor away...
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6761
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2174
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Ok I actually got to this one today. Fixed the wire through the speaker. Thankfully no damage done. Under the chassis wasn't as bad as I was expecting. Still he kept the old caps in service and used them to terminate the new ones omg not good. He must have buggered up the band change switch as he put a dummy switch in its place and got it to run on AM only. Well I thought considering it's running very strongly now I thought I better replace the dummy switch with a double pole switch seeing as it had no on/off switch and install my new cotton covered power cable. This little radio is performing very strongly now even though no short wave. Oh well I can take that later hey.
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7395
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Photos uploaded to Post 43.
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A valve a day keeps the transistor away...
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Location: Latham, ACT
Member since 21 February 2015
Member #: 1705
Postcount: 2174
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With regards to the positioning of the transformer under the tuning gang , this radio shows no sign of interference from it. In fact it's a very strong and clear performer.
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