tube rectifier

dung0981 · 6th January 2009, 12:45 AM

I am doing comparison between 6D22S and 6CJ3. After a few hours research, but I could not find information about the slow on start of 6CJ3.
6D22S got 30s delay (correct me if I am wrong). The only for 6D22S is the anode cap, which is dangerous for the kids
Anyone have experienced about those tube. Please help me out. Any input will be much appreciated.
Thanks
Dan

ray_moth · 6th January 2009, 06:19 AM

I'd expect the 6CJ3, which can tolerate 900v heater to cathode voltage, to have a warm-up time at least as long as that of the 6D22S, which tolerates up to 600v. It's the high degree of electrical insulation between heater and cathode that causes the long warm-up time. As you say, the 6D22S gives about 30sec.

BTW, the 6D22S uses the top cap connection for the cathode, not anode. I've used this rectifier and it is rugged! It can tolerate at least 50uF in a cap-input filter and forward voltage drop is only around 10-12v with normal current. It also does pretty well if you can only feed it 5v for the heater, but 6.3v is obviously better.

dung0981 · 6th January 2009, 04:39 PM

i am trying to stay away with 5AR4 because of 5V heater. i think i will go with 6CJ3.
Ray-moth, thank you so much for your time
Btw, do you know any vendors have GE 6CJ3 beside ebay. I am new to tube equipment.

Brit01 · 6th January 2009, 07:33 PM

http://www.tubesandmore.com/

I bought my 6X5 from here. Good shop.

I see they have 6CJ3 for 5.13 USD.

dung0981 · 6th January 2009, 10:07 PM

thank you, Brit01. I just called tubeandmore. i spoke to the sale representative. He told me that they have so many brand in stock, RCA, GE, Raythyon...All of them are the same price. What should i pick?

dung0981 · 25th January 2009, 07:28 AM

i got my tubes a few days ago. Now i have another question, what is the max cap value if i use the capacitor input? I am thinking about 47uf.

Tweeker · 25th January 2009, 12:19 PM

That should be fine.

6th January 2009, 12:45 AM	#1
dung0981 diyAudio Member Join Date: Apr 2006 Location: CA	tube rectifier I am doing comparison between 6D22S and 6CJ3. After a few hours research, but I could not find information about the slow on start of 6CJ3. 6D22S got 30s delay (correct me if I am wrong). The only for 6D22S is the anode cap, which is dangerous for the kids Anyone have experienced about those tube. Please help me out. Any input will be much appreciated. Thanks Dan

25th January 2009, 12:19 PM	#7
Tweeker diyAudio Member Join Date: Dec 2004 Location: Cincinnati, Ohio	That should be fine. __________________ Be sure your foil hat has a good low impedance ground.

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
4v for rectifier tube	camotecue	Tubes / Valves	10	20th May 2008 09:20 PM
Tube rectifier help	Cobra2	Tubes / Valves	12	3rd March 2007 01:58 PM
Z2b tube rectifier	bee696	Tubes / Valves	3	4th November 2006 02:45 PM
Anybody heard about Tarzian Silicon Rectifier for Tube Rectifier Replacement?	zxx123	Tubes / Valves	4	21st February 2005 04:02 AM
Tube rectifier for VDIGC tube psu	ebijma	Chip Amps	2	11th March 2004 04:02 PM

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

6th January 2009, 06:19 AM	#2
ray_moth diyAudio Moderator Emeritus Join Date: Jan 2004 Location: Jakarta	I'd expect the 6CJ3, which can tolerate 900v heater to cathode voltage, to have a warm-up time at least as long as that of the 6D22S, which tolerates up to 600v. It's the high degree of electrical insulation between heater and cathode that causes the long warm-up time. As you say, the 6D22S gives about 30sec. BTW, the 6D22S uses the top cap connection for the cathode, not anode. I've used this rectifier and it is rugged! It can tolerate at least 50uF in a cap-input filter and forward voltage drop is only around 10-12v with normal current. It also does pretty well if you can only feed it 5v for the heater, but 6.3v is obviously better.

6th January 2009, 04:39 PM	#3
dung0981 diyAudio Member Join Date: Apr 2006 Location: CA	i am trying to stay away with 5AR4 because of 5V heater. i think i will go with 6CJ3. Ray-moth, thank you so much for your time Btw, do you know any vendors have GE 6CJ3 beside ebay. I am new to tube equipment.

6th January 2009, 07:33 PM	#4
Brit01 diyAudio Member Join Date: Jul 2008	http://www.tubesandmore.com/ I bought my 6X5 from here. Good shop. I see they have 6CJ3 for 5.13 USD.

6th January 2009, 10:07 PM	#5
dung0981 diyAudio Member Join Date: Apr 2006 Location: CA	thank you, Brit01. I just called tubeandmore. i spoke to the sale representative. He told me that they have so many brand in stock, RCA, GE, Raythyon...All of them are the same price. What should i pick?

25th January 2009, 07:28 AM	#6
dung0981 diyAudio Member Join Date: Apr 2006 Location: CA	i got my tubes a few days ago. Now i have another question, what is the max cap value if i use the capacitor input? I am thinking about 47uf.

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