Great bench supply for tube work. - Page 3

kevinkr · 20th August 2007, 05:31 PM

My ex-wife worked for UPS for a while, and I got to see one of their freight forwarding centers, and no lie, there were conveyors that ended in free space with a drop of up to 6 feet to the receiving area below. I even saw a few packages come falling off the end of such a conveyor. I was just stunned..

Just imagine what that would do to a $2K pair of NOS/NIB WE300B even well packed.

richwalters · 20th August 2007, 08:57 PM

Standard air-mail parcel in Europe i.e 10kg will set you back around £80 ($160) for 500 Miles i.e one way as the crow flies.. That's a rip off considering a return passenger flight with a body weight of 100kg can easily be done for this. Freight does take handling but this price hike in such an excess is no excuse.
Seems the price watchers have missed. The snail mail companies will tell you they are loosing head over fist. Howcome ?

richj

Sheldon · 20th August 2007, 09:12 PM

This thread has gone way OT. But, the subject is one of general interest here. Perhaps the shipping stuff should be given its own title.

Sheldon

richwalters · 20th August 2007, 09:32 PM

Quote:

Originally posted by gearheaddruid
the supplies are constant voltage, constant current, or constant wattage. The norm seems to be 0-3000 volts with a max output of 300 watts. There are lots of them on Ebay for under 100 dollars.
I use mine for checking/reforming capacitors also.

A 300W 3kV psu capable of suviving short circuits on any bench application is worth looking at. However 100mA is a bit low for me. For $100 I would buy two and redesign front panel for sep screen supply with all the clocks too. I use sim but with neg grid bias supply thrown in. 500V is enough.

richj

planet10 · 20th August 2007, 09:35 PM

Quote:

Originally posted by richwalters
The snail mail companies will tell you they are loosing head over fist. Howcome ?

Not Canada Post

http://www.canadapost.ca/common/corp....asp?prid=1153

and as i understand it some of the lower rates in the world (USPS had some scary low rates)

seems USPS is profitable too

http://www.hoovers.com/us-postal-ser...actsheet.xhtml

dave

Original Burnedfingers · 21st August 2007, 11:54 AM

There are several ISCO power supplies on ebay now. One is a 493 and the other is a 494.

20th August 2007, 05:31 PM	#21
kevinkr diyAudio Moderator Join Date: Sep 2004 Location: Boston, Massachusetts Blog Entries: 6	My ex-wife worked for UPS for a while, and I got to see one of their freight forwarding centers, and no lie, there were conveyors that ended in free space with a drop of up to 6 feet to the receiving area below. I even saw a few packages come falling off the end of such a conveyor. I was just stunned.. Just imagine what that would do to a $2K pair of NOS/NIB WE300B even well packed. __________________ www.kta-hifi.net

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20th August 2007, 08:57 PM	#22
richwalters diyAudio Member Join Date: Sep 2003 Location: Alps:Tube amp designs over 150W, SMPS guru.	Standard air-mail parcel in Europe i.e 10kg will set you back around £80 ($160) for 500 Miles i.e one way as the crow flies.. That's a rip off considering a return passenger flight with a body weight of 100kg can easily be done for this. Freight does take handling but this price hike in such an excess is no excuse. Seems the price watchers have missed. The snail mail companies will tell you they are loosing head over fist. Howcome ? richj

20th August 2007, 09:12 PM	#23
Sheldon diyAudio Member Join Date: Dec 2003 Location: San Diego	This thread has gone way OT. But, the subject is one of general interest here. Perhaps the shipping stuff should be given its own title. Sheldon

21st August 2007, 11:54 AM	#26
Original Burnedfingers diyAudio Member Join Date: Nov 2002	There are several ISCO power supplies on ebay now. One is a 493 and the other is a 494.

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