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Post by André on Jan 14, 2024 16:36:33 GMT
One bad habit people have is buying an old item that more than likely not even seen a service in its lifetime plug it in & tell the world how shit it is & whats all the fuss about. It happens, They for some reason don't grasp that things like that need a service & will need many parts replacing.
Top & bottom of it is Vintage amps need money spending on them most times far exceeds the cost of the actual item & if you are useless & need some engineer to do the work you are talking big money, a guess at £30 an hour.
The amp i used cost me around £300 to rebuild no labour, my own time. Out lawed Bell wire mains cable replaced. It will without a doubt see another 50 years & is totally safe i soak tested after set up it for a solid week.
Im not a fan of all that spec malarky, but this amp sounds as good as anything ive heard for 13 watts it has some real bollox to it now ive upped a Cap values on output coupling & PSU. Before i rebuilt it, on full volume i could hear some hiss & hum. Replacing the 2SC458 Transistors of which were renown for being one of the worse silicone transistors long term, for KSC1845 gave me total silence, not changing the sound of the amp. The only original design parts left are some New old Stock SANKEN output transistors i managed to get hold of.
Why do i do all this! I do it because old amps just make my music sound how i want it too, where as modern amps just do not. Also the build quality & most important the design/Aesthetic. Yeah you can get high build quality today at a price but being on a new boring looking amp is not the same thing. Each to their own tho.
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Post by Westie on Jan 14, 2024 17:18:55 GMT
And if someone picks up your amp in 40 year time, it will again be serviceable a good for another 40 years. Unlike most stuff made today which will be landfill.
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Post by dsjr on Jan 14, 2024 18:50:46 GMT
I've already told you that my main rig amp is a fifty year old pre and power. The pre will fully cave in on worn out pots rather than anything else going tits up and both my inherited samples have things not right (hf filter working on one channel only on one and the muting delay on switch-on not working on the other). The D-150 is fugly as anything, but the offsets are well within spec still and so far it's fine when I can use it. I keep thinking about the Quad 33/303. the 33 is derided by some but the Dada updates seemed to work well on mine (re-made boards have been available too either from Quad or an eBay chap who's an engineer too - www.ebay.co.uk/usr/nbattysmith?_tab=2 - and if the speakers are chosen well, the 303 is a fatigue free charmer of an amp still which runs cool and without drama... It seems that some of the 'better' 1970's amps (there was a lot of great looking crap as well) are beginning to suffer dry solder joints and worn out caps and in some cases, the amp blows up due to this (Sony 5650 V-Fet sadly) and some parts are unobtainable now. There's a Youtube vid of a service engineer repairing a Technics SU-3500 (which I used to rate along with its tuner). This one is black so maybe not a UK model but he has a proper solder suction device which leaves the fragile solder pads free and intact. Apologies all, I can go on and on and on and on and on........ Too much time gone and oceans under my HiFi bridge now...
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