Granada Television Brochure, 1970s
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Memories of a Derwent Field Service Engineer
PYE Australia Circa 1971
Radios-TV VRAT
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Thorn TX10 Chassis
Crusty-TV Museum, Analogue TV Network
Philips N1500 Warning!
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Thorn’s Guide to Servicing a VCR
Ferguson 3V24 De-Robed
Want to tell us a story?
Video Circuits V15 – Tripler Tester
Thorn Chassis Guide
Remove Teletext Lines & VCR Problems
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Humbars on a Sony KV2702
1972 Ultra 6713
D|E|R Service “The Best”
The one that got away
Technical information
The Line Output Stage
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Tales of a newly qualified young engineer.
Tales of a Radio Rentals Van Boy
Sanyo SMD
Disastrous Company Rebranding
1969 Philips G22K511
Memories Of The TV Trade
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Dirty TV screens
Dual Standard and Single Standard CTV’s
Radios-TV on YouTube
The Winter of 62/63
A domestic audio installation
1979 Ferguson Videostar Deluxe 3V16
Music centre modifications
Unusual record player modification
B&K 467 Adapters
Mishaps In The Trade
1971 Beovision 3200
1971 Bush CTV1120
Granada Television Brochure, 1970s
Long Gone UK TV Shops
Memories of a Derwent Field Service Engineer
PYE Australia Circa 1971
Radios-TV VRAT
Fabulous Fablon
Thorn TX10 Chassis
Crusty-TV Museum, Analogue TV Network
Philips N1500 Warning!
Rumbelows
Thorn EMI Advertising
Thorn’s Guide to Servicing a VCR
Ferguson 3V24 De-Robed
Want to tell us a story?
Video Circuits V15 – Tripler Tester
Thorn Chassis Guide
Remove Teletext Lines & VCR Problems
Ceefax (Teletext)
Suggestions
Website Refresh
Colour TV Brochures
1970s Lounge Recreation
CrustyTV Vintage Television Museum
Linda Lovelace Experience
Humbars on a Sony KV2702
1972 Ultra 6713
D|E|R Service “The Best”
The one that got away
Technical information
The Line Output Stage
The map
Tales of a newly qualified young engineer.
Tales of a Radio Rentals Van Boy
Sanyo SMD
Disastrous Company Rebranding
1969 Philips G22K511
Memories Of The TV Trade
Crazy house
Dirty TV screens
Dual Standard and Single Standard CTV’s
Radios-TV on YouTube
The Winter of 62/63
A domestic audio installation
1979 Ferguson Videostar Deluxe 3V16
Music centre modifications
Unusual record player modification
B&K 467 Adapters
Mishaps In The Trade
1971 Beovision 3200
1971 Bush CTV1120
B&W TV Bush Tv148U broken tube
This is the set I got from a friend with the broken tube. I thought it was an early A640 chassis when I got it but according to the chassis sticker it is an A591. Very similar to the A640 but with separate tuners and a valve If panel. I collected the set today from my lockup and had a look inside, it has a bit of woodworm in the base and more worrying there was fresh wood dust on the floor of the cabinet. There are two date stamps inside the cabinet, it looks as if it was on the assembly line for a couple of days.... I have decided to strip the set outside and treat the cabinet before bringing it into the house. The tube neck looks as if it was dealt a hefty blow, most of the phosphor has been blown off the screen and there is a small chip in the glass on the inside of the screen where presumably a bit of the gun impacted it! For now I removed the chassis and broken tube, I intend to soak the cabinet in woodworm killer tomorrow. The woodworm is no where near as bad as the tube donor Top Rank set. the front on that set is crumbling! Once I am happy with the cabinet I will fit the replacement tube, reform the smoothers and decide what to do about a lopt. What is that bl@@dy wood worm like about these Rank sets!? I do have a Mother in law with a large chest (careful!) freezer... If I treat it with woodworm killer and then freeze the cabinet for a week or so is that a fairly guaranteed cure? Rich.
Given that we are due a heatwave this week, putting it in a car in full sun with all the windows shut will also do the trick - but the freezer is more certain. I'd do it the other way round though: freeze it for a couple of weeks then treat it. More domestically acceptable, apart from anything else!
This is the set I got from a friend with the broken tube. I thought it was an early A640 chassis when I got it but according to the chassis sticker it is an A591.
For days I've been wondering what the chassis before the A640 was called and now you've finally put me out of my misery. The A591 was of course also used in a lot of interesting Murphy sets.
Such as the V159U that I have . although mine doesn't work that well on 625 as the picture is very washed out and definitely not watchable even in a dark room . Cheers Neil.
Yes I had always (incorrectly) thought that the A640 chassis covered all of the series and that there were just three versions of the If panel. The early ones having valves, the middle model having germanium transistors and the last being silicon. I have a few sets with this series of chassis I will check the numbers, but it looks as if the chassis number was different depending on the If panel. A640 being the last dual standard guise with silicon transistors. Anyway I have taken Mike's advice and wrapped the cabinet in a big plastic bag and dumped it in the freezer for a while. It can have a freezing fortnight while we have a sweltering one! I stuck my head in the loft today, I was going to see if I could find my spare lopt ... it was much too hot up there, so I will resume the search later when it has cooled down a bit ! Rich.
For those that wish to follow along with this repair, I've loaded the three ( Service and cct/Tuner/Alignment) Trader service sheets 1812,14 &15 into the library. I have combined them into one file called Bush TV148U Trader, R&TS data was already present but I know most prefer Trader.
CrustyTV Television Shop: Take a virtual tour
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Thanks Chris. Most useful! I have got the set all back together now. I gave the cabinet a good douse of woodworm killer. I poured a little inside and then rotated the cabinet around so as the inside including the front got a good soak. It's time in the freezer caused on or two joins to loosen but nothing major that a bit of wood glue couldn't sort. I then filled the holes and refitted everything back into the cabinet. A good polish and it really has come up well. The set works quite well considering it has had almost nothing done to it. there are a few minor issues to sort. It is still running on the borrowed lopt at the moment. I have been experimenting with the duff one. First I tried replacing the overwind with one I had from a Plessey transformer. It worked for a while but still ballooned badly. once switched to 625 the EHT fell off and the DY heater went out. I then removed the overwind and fitted a 1500 3 stick tripler with a 180pf from top cap of the PY to chassis. This gave me a dim big picture but it is stable, doesn't balloon and works on 625. I guess I need a 5 stick tripler... Apart from that the sync is a bit weak, if the contrast is advanced it cogs and bends, and the sound goes distorted after a while. So still plenty to do! Rich.
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