Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!uwm.edu!csd4.csd.uwm.edu!info-high-audio-request From: ag@sics.se (Anders G|ransson) Newsgroups: rec.audio.high-end Subject: Re: Leaving components turned on. Message-ID: <8614@uwm.edu> Date: 31 Dec 90 15:09:02 GMT Sender: news@uwm.edu Lines: 28 Approved: tjk@csd4.csd.uwm.edu Originator: tjk@csd4.csd.uwm.edu >>>>> In article <8587@uwm.edu>, hqyy@vax5.cit.cornell.edu writes: hqyy> In the case of tube amps or pre-amps, use your judgement: hqyy> if left on, tube life will be considerably shortened and you also risk hqyy> damage from voltage spikes. I used my judgment to effect of a "burnout" of one my modified Dynaco Mark VI. It is now repaired and I got the pair up for sale. The difference between warmed up and cold amplifiers were with this equipment really great, that's why I left them on. But, there is the consideration of the tubes lifetime as well. I read somewhere that the lifetime in hours were somewhat prolonged by never turning the amp. off but then again they're on so many more hours so you'll have to replace the tubes more frequently. In Sweden, at least, that's an affair costing about 2000 SEC, (appr. 400$). Could someone give an estimate what a pair of these mark VI would cost in U.S.A. How many of them were sold? For information I can tell that I paid 10 000 SEC for my pair. (aprrox. 1 200 $). I guess that was a bit too expensive even for the Swedish market. -- name(!): Anders G|ransson, (Not a very serious character).