21-07-2011, 08:29 AM
Great to see the forum providing a useful free service to members!
I've found that generally, the Makers' sheets (where the exist) tend to be the best, as we'd expect. The Bush DAC90A is a case in point - the Trader sheet is OK, but a bit scruffy, but the Bush service instructions run to 8 pages, which are cleaner, and more comprehensive. As has been said, it's an annoyance that the Trader Sheets and ERT sheets invariably use different component numbering from the makers', which can result in confusion when someone says for example, 'make sure you replace C22' when on the maker's sheet it's referred to as 'C26', but on the trader sheet 'C26' is a different cap entirely - on the inside of an IFT can for example, and quite harmless!
After the war, radio manufacturers were seeking new ways of getting people to ditch their old AM sets, and with the introduction of FM broadcasts from 1955, they were keen to jump on the bandwagon, just as happened later on with 625 line dual standard TVs, colour TVs, digital, HDTV, and now 3D. The Fenman, with it's FM waveband, capitlised on the then recently introduced FM broadcasts, and I imagine that at the time, they thought AM would fizzle out, just as they thought that DAB would sweep aside FM/AM. The trouble with gazing into crystal balls is that there's a tendancy to see more balls than crystals.
Remember when Sony introduced the 'Walkman?'
Other makers and sections of the media scoffed at the idea, and saw no market for a 'tape recorder' (as they saw it) that wouldn't record, so thought it would be a flop. The rest is history.
Nice set - good luck with the restoration!
David.
I've found that generally, the Makers' sheets (where the exist) tend to be the best, as we'd expect. The Bush DAC90A is a case in point - the Trader sheet is OK, but a bit scruffy, but the Bush service instructions run to 8 pages, which are cleaner, and more comprehensive. As has been said, it's an annoyance that the Trader Sheets and ERT sheets invariably use different component numbering from the makers', which can result in confusion when someone says for example, 'make sure you replace C22' when on the maker's sheet it's referred to as 'C26', but on the trader sheet 'C26' is a different cap entirely - on the inside of an IFT can for example, and quite harmless!
After the war, radio manufacturers were seeking new ways of getting people to ditch their old AM sets, and with the introduction of FM broadcasts from 1955, they were keen to jump on the bandwagon, just as happened later on with 625 line dual standard TVs, colour TVs, digital, HDTV, and now 3D. The Fenman, with it's FM waveband, capitlised on the then recently introduced FM broadcasts, and I imagine that at the time, they thought AM would fizzle out, just as they thought that DAB would sweep aside FM/AM. The trouble with gazing into crystal balls is that there's a tendancy to see more balls than crystals.
Remember when Sony introduced the 'Walkman?'
Other makers and sections of the media scoffed at the idea, and saw no market for a 'tape recorder' (as they saw it) that wouldn't record, so thought it would be a flop. The rest is history.
Nice set - good luck with the restoration!
David.
