mercury vapor rectifier tubes on e-bay

karma · 4th June 2005, 05:57 AM

if anyone is looking for somthing different for that next project
try these

http://cgi.ebay.ca/ws/eBayISAPI.dll?...778481775&rd=1

i would but i dont bid out of canada

Tekko · 4th June 2005, 09:20 AM

Why not ? Everyone else bids on stuff on the other side of the globe.

Colt45 · 4th June 2005, 12:43 PM

I've got some 866's, they are cool tubes, other than the warmup, which is a little pain to design in.. no big deal though.

that and theyve gotta be choke loaded, etc.

I'm not sure if the glass used is opaque to UV, or if it lets it through... don't want to be burning my eyes out

kmtang · 5th June 2005, 03:30 AM

This tube is a half wave rectifier tube which take 2.5V 5A for the filament. I would rather go with the 83 rectifier tube instead.

With this kind of mercury vapor tube, please don't forget to add a standby switch for delaying the HT applied to the tube. It needs some warm up time.

Colt45 · 5th June 2005, 04:51 AM

Quote:

Originally posted by kmtang
This tube is a half wave rectifier tube which take 2.5V 5A for the filament. I would rather go with the 83 rectifier tube instead.

An 83 can't do 10kV though

audiousername · 5th June 2005, 05:06 AM

... and 83s don't glow as nicely

kmtang · 5th June 2005, 05:16 AM

What kind of amplifier you want to go with? 10kV power supply is only good for the broadcast transmitters.

I believe you need to be more practical.

Johnny

Miles Prower · 5th June 2005, 06:29 AM

What kind of amplifier you want to go with?

Those are used for powering max legal (+) ham rigs. A bit excessive for most audio applications. And, no, glass is not transparant to UV. "Fused quartz", however, is quite transparant to UV, which is why Hg vapor lamps require shielding.

valveluver · 19th June 2005, 03:17 PM

Dont waste your time with mercury rectifiers. Those of you that think solid state rectifiers are a problem should try mercury! You can see the trash on a scope!

amperex · 19th June 2005, 03:30 PM

Coolest MV out there. Whole globe glows. Only issue with MV is they are noisy, thus I use vacuum type rectifiers. Of course, the noise or sometimes called 'hash' can be filtered out.

4th June 2005, 05:57 AM	#1
karma diyAudio Member Join Date: Feb 2003 Location: hamilton,ontario	mercury vapor rectifier tubes on e-bay if anyone is looking for somthing different for that next project try these http://cgi.ebay.ca/ws/eBayISAPI.dll?...778481775&rd=1 i would but i dont bid out of canada

5th June 2005, 05:06 AM	#6
audiousername diyAudio Member Join Date: Jul 2004 Location: Melbourne, Victoria	... and 83s don't glow as nicely __________________ Jason

5th June 2005, 06:29 AM	#8
Miles Prower diyAudio Member Join Date: May 2005 Location: USA	What kind of amplifier you want to go with? Those are used for powering max legal (+) ham rigs. A bit excessive for most audio applications. And, no, glass is not transparant to UV. "Fused quartz", however, is quite transparant to UV, which is why Hg vapor lamps require shielding. __________________ There are no foxes in atheistholes

19th June 2005, 03:17 PM	#9
valveluver diyAudio Member Join Date: Mar 2003 Location: florida	Mercury Rectifiers are bad news! Dont waste your time with mercury rectifiers. Those of you that think solid state rectifiers are a problem should try mercury! You can see the trash on a scope!

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4th June 2005, 09:20 AM	#2
Tekko diyAudio Member Join Date: Jan 2005 Location: SWE	Why not ? Everyone else bids on stuff on the other side of the globe.

4th June 2005, 12:43 PM	#3
Colt45 diyAudio Member Join Date: Feb 2002 Location: Canada	I've got some 866's, they are cool tubes, other than the warmup, which is a little pain to design in.. no big deal though. that and theyve gotta be choke loaded, etc. I'm not sure if the glass used is opaque to UV, or if it lets it through... don't want to be burning my eyes out

5th June 2005, 03:30 AM	#4
kmtang diyAudio Member Join Date: Nov 2004 Location: Vancouver	This tube is a half wave rectifier tube which take 2.5V 5A for the filament. I would rather go with the 83 rectifier tube instead. With this kind of mercury vapor tube, please don't forget to add a standby switch for delaying the HT applied to the tube. It needs some warm up time.

5th June 2005, 05:16 AM	#7
kmtang diyAudio Member Join Date: Nov 2004 Location: Vancouver	What kind of amplifier you want to go with? 10kV power supply is only good for the broadcast transmitters. I believe you need to be more practical. Johnny

19th June 2005, 03:30 PM	#10
amperex diyAudio Member Join Date: Feb 2005 Location: MI	Coolest MV out there. Whole globe glows. Only issue with MV is they are noisy, thus I use vacuum type rectifiers. Of course, the noise or sometimes called 'hash' can be filtered out.

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