Physically small rectifier tube with 5V heaters

dsavitsk · 13th June 2006, 06:45 AM

Can anyone suggest one? Thanks.

Geek · 13th June 2006, 08:28 AM

All the ones I know of with 5V heaters are octal

rpapps · 13th June 2006, 08:38 AM

Like 5Y3 for example.

i_should_coco · 13th June 2006, 08:51 AM

Quote:

Originally posted by dsavitsk
Can anyone suggest one? Thanks.

With what PIV and current ratings?

SHiFTY · 13th June 2006, 09:32 AM

GZ34 / 5AR4 is the god of all rectifiers. Small, slow starting, high current and low voltage drop. Needs 2.3A for heater.

arnoldc · 13th June 2006, 09:55 AM

I searched the TDSL database for FW rectifiers with 5V heaters and nly octal or UX4 came out.

I use 5Y3 when I need to drop lotsa voltage

and 5AR4 for efficiency and slow turn on

But I guess you know that already.

Sheldon · 13th June 2006, 03:44 PM

Quote:

Originally posted by dsavitsk
Can anyone suggest one? Thanks.

If you don't mind breaking "rules", you could use one of the smaller 6.3v jobs that were designed for car radios. They will tolerate a pretty wide range of heater voltages. The 6x4, for instance is rated from 5 to 8 volts, http://www.mif.pg.gda.pl/homepages/f...137/6/6X4.pdf. Should be ok, especially if your 5v winding is rated for higher current and puts out a little more than 5v.

Sheldon

Geek · 14th June 2006, 02:47 AM

Speaking of those.... I like 6X4's (or EZ81 for higher current) and just use a bridge and filter cap, then dropping resistor. Not KISS, but a way to use a little 6V heater from a 5V supply

13th June 2006, 06:45 AM	#1
dsavitsk diyAudio Member Join Date: Jan 2005 Location: Chicago	Physically small rectifier tube with 5V heaters Can anyone suggest one? Thanks.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Tube heaters in series.	nigelwright7557	Tubes / Valves	5	4th July 2008 09:11 PM
Rectifier and amp heaters on one supply?	rman	Tubes / Valves	1	16th April 2008 02:19 AM
Tube heaters AC or DC?	soundbadger	Tubes / Valves	105	1st March 2008 10:04 AM
Series heaters = small problem?	Klimon	Tubes / Valves	5	13th May 2007 11:12 AM
Anybody heard about Tarzian Silicon Rectifier for Tube Rectifier Replacement?	zxx123	Tubes / Valves	4	21st February 2005 04:02 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

13th June 2006, 08:28 AM	#2
Geek diyAudio Member Join Date: Sep 2004	All the ones I know of with 5V heaters are octal

13th June 2006, 08:38 AM	#3
rpapps diyAudio Member Join Date: Jul 2004 Location: nowhere of interest	Like 5Y3 for example.

13th June 2006, 09:32 AM	#5
SHiFTY diyAudio Member Join Date: Jul 2002 Location: New Zealand	GZ34 / 5AR4 is the god of all rectifiers. Small, slow starting, high current and low voltage drop. Needs 2.3A for heater.

13th June 2006, 09:55 AM	#6
arnoldc diyAudio Member Join Date: Apr 2003 Location: Makati	I searched the TDSL database for FW rectifiers with 5V heaters and nly octal or UX4 came out. I use 5Y3 when I need to drop lotsa voltage and 5AR4 for efficiency and slow turn on But I guess you know that already.

14th June 2006, 02:47 AM	#8
Geek diyAudio Member Join Date: Sep 2004	Speaking of those.... I like 6X4's (or EZ81 for higher current) and just use a bridge and filter cap, then dropping resistor. Not KISS, but a way to use a little 6V heater from a 5V supply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)