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  #21  
Old 31st July 2007, 07:36 PM
colin.hepburn colin.hepburn is offline
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Default Re: A cautionary tale.

Nop Crossed Legs Thou.. Thou..
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Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s
Other turntables AR EB101/Thorns TD150mk2/Thorns TD160mk2


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  #22  
Old 1st August 2007, 11:54 AM
Marce Marce is offline
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Default Re: A cautionary tale.

Re-aranged all equipement in living room over the weekend due to delivery of new tellt for Her. Spent ages trying to get cables as neat as possible etc.
Switched it all on, and no left channel (I've got monoblock power amps) sooo
I started pulling equipement off to find which wire I'd yanked out or forgoten to plug in etc, checked all connections, panickewd cos they were all correct, suspected out put of digi box, then pre-amp then this then that.
Over an hour later I was rather perplexed!!!! so decieded to calm down with a coffee,
sat back, reviewed the mess in front of me and saw the left speaker wire neatly coiled up on top of the speaker where I'd put to keep it out of the way
while I moved everything.
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  #23  
Old 1st August 2007, 02:50 PM
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Shane Shane is offline
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Default Re: A cautionary tale.

Quote:
Originally Posted by Shane View Post
If like me you are of a nervous disposition when it comes to PSU caps, then you could follow my tip when about to move the unit and switch the DMM you were using to monitor the output voltage to the DC current range to make sure the caps are fully discharged.


Just don't forget to switch it back to voltage measurement before switching on again.


Those rectangular white power resistors do a very pretty imitation of the old Vesuvius type fireworks of my youth...
Seems like this little error wrote off a perfectly good GZ34 . I assume it's not supposed to measure short-circuit between one anode and the cathode?

Bugger...
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  #24  
Old 15th December 2007, 06:29 PM
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Shian7 Shian7 is offline
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Default Re: A cautionary tale.

I've just spent most of the day recharging a rechargeable torch.
Except I haven't - The fuse is missing from the plug on the charger lead. Ahem!
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  #25  
Old 15th December 2007, 08:54 PM
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Martin213 Martin213 is offline
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Default Re: A cautionary tale.

Quote:
Originally Posted by Shian7 View Post
I've just spent most of the day recharging a rechargeable torch.
Except I haven't - The fuse is missing from the plug on the charger lead. Ahem!
HEHE .....Put ur finger on ur chin n say 'red' backwards m8
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  #26  
Old 15th December 2007, 09:51 PM
Sid and Coke Sid and Coke is offline
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Location: Scotland - East Coast
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Default Re: A cautionary tale.

Quote:
Originally Posted by bikerhifinut View Post
Are any other forum users prepared to relate similar experiences, we've all done it! And how far did you go before you realised it was something simple?
Its all in fun guys.

Iwired my LH speaker out of phase during a recent system re-build. Noticed that something was very wrong with the sound straight away , but took a 'triple' check of all the wiring before i spotted my mistake ( this time using a torch so i could actually see what i was doing.


I bought and fitted 4 new EL84's and 2 NOS Brimar ECF80's off ebay the other day. I fitted the valves and turned the KEL84 on to warm up. I then left the room with these barnd new bur untested components fitted.
5 minutes later My wife asked me why my amp was making a funny noise. I raced into the room to find i had loud buzzing coming from both speakers and the LED was glowing deep bright red ( not normal the normal orange).


After a system shut down, remove, remove and refit of original valves, then methodical and progressive replacement of each valve in turn with the new items everything seems to both work oK and sound OK.

If there is ever a Nuclear strike on the UK I'm going to hide behind my KEL84, it seems to be bombproof.
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  #27  
Old 16th December 2007, 11:55 AM
systemx systemx is offline
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Default Re: A cautionary tale.

Hi Tim.
You may have seen from other posts that I an not a lover of the led fit. I think that there may be a problem that showed up when you changed the valves (I am thinking of movement around the valveholders).
Have a good look around yours to see if there is a duff connection.

Terry
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