sovtek 300B

Gluca · 20th July 2005, 08:08 PM

I just won a bid on e-bay for a pair of 300b by sovtek. I could not find any reference about them. I had them for 77 euro ... it seems good isnt it?

Anyone anything to report on them?

Gianluca

tubelab.com · 21st July 2005, 01:13 AM

Sovtek is the brand used by New Sensor in the USA for tubes made in Russia by the Reflektor factory. They are no longer selling 300B tubes using the Sovtek name. They are currently selling 300B's using the Electro Harmonix brand. I used the Sovtek 300B's in my 300Beast push pull amp. These tubes had a great sound, but I had bad luck with them. Over a period of one year, I had 4 of these tubes fail in the same manner, half of the filament went open. I found out that other people had the same problem. The details are explained on my 300Beast web page. www.tubelab.com/300Beast.htm
New Sensor would not replace any of them, and only suggested "buy our new EH300B, it has an improved filament". I have not purchased any Sovtek tubes since.
I would state that if the tubes are good now they will probably stay ok. I have 6 good ones that have worked great for years. All of the failures happened in the first 6 months. The 300Beast still has Sovtek tubes in it. At the time I was getting these for 45 to 60 USD each.
For my 300B amps, I am currently using the Chinese 300B tubes made in the Shuguang factory and sold under various brand names. They are sometimes called 300B-98. They sell for 45 to 60 USD in the USA. I have bought 10 with no issues. With the current Dollar to Euro ratio they should be a good deal in Europe.

tomchaoda · 21st July 2005, 01:15 AM

to use it as a first start is ok...

see reference here:
http://www.enjoythemusic.com/magazin...ent/1201/300b/

http://www.penguinlovers.net/audio/300BSE_proj.html
(and check "Some Tube Reviews" section

Gluca · 21st July 2005, 08:22 AM

Thanks for your replies... interesting links. I hope these sovteks survive as long as I need to finish my next project.

On ebay I noticed the EH gold grid sell for 100euro per matched pair, it seems to be quite a good price. Every now and then I also spot TJs.

WE are utterly out of my budget.

Gianluca

20th July 2005, 08:08 PM	#1
Gluca tarmac ripper diyAudio Member Join Date: Nov 2004 Location: Back to Italy	sovtek 300B I just won a bid on e-bay for a pair of 300b by sovtek. I could not find any reference about them. I had them for 77 euro ... it seems good isnt it? Anyone anything to report on them? Gianluca

21st July 2005, 01:13 AM	#2
tubelab.com diyAudio Member Join Date: Jul 2005 Location: South Florida	Sovtek 300B tubes Sovtek is the brand used by New Sensor in the USA for tubes made in Russia by the Reflektor factory. They are no longer selling 300B tubes using the Sovtek name. They are currently selling 300B's using the Electro Harmonix brand. I used the Sovtek 300B's in my 300Beast push pull amp. These tubes had a great sound, but I had bad luck with them. Over a period of one year, I had 4 of these tubes fail in the same manner, half of the filament went open. I found out that other people had the same problem. The details are explained on my 300Beast web page. www.tubelab.com/300Beast.htm New Sensor would not replace any of them, and only suggested "buy our new EH300B, it has an improved filament". I have not purchased any Sovtek tubes since. I would state that if the tubes are good now they will probably stay ok. I have 6 good ones that have worked great for years. All of the failures happened in the first 6 months. The 300Beast still has Sovtek tubes in it. At the time I was getting these for 45 to 60 USD each. For my 300B amps, I am currently using the Chinese 300B tubes made in the Shuguang factory and sold under various brand names. They are sometimes called 300B-98. They sell for 45 to 60 USD in the USA. I have bought 10 with no issues. With the current Dollar to Euro ratio they should be a good deal in Europe. __________________ Too much power is almost enough! Turn it up till it explodes - then back up just a little.

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
Sovtek 6B4-G	Lowrider	Tubes / Valves	11	25th February 2009 11:43 AM
FS: Matched Pair SOVTEK 300B	cartman	Swap Meet	0	29th January 2007 07:28 PM
Fs: Sovtek El34wxt	transducer	Swap Meet	0	20th December 2005 07:32 PM
* 35 watt * 300B SE = super 300B + Class A2	rick57	Tubes / Valves	4	13th July 2005 04:18 PM
FS: 2A3 Sovtek	NickC	Swap Meet	0	17th October 2004 12:52 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

21st July 2005, 01:15 AM	#3
tomchaoda diyAudio Member Join Date: Sep 2003 Location: New Jersey	to use it as a first start is ok... see reference here: http://www.enjoythemusic.com/magazin...ent/1201/300b/ http://www.penguinlovers.net/audio/300BSE_proj.html (and check "Some Tube Reviews" section

21st July 2005, 08:22 AM	#4
Gluca tarmac ripper diyAudio Member Join Date: Nov 2004 Location: Back to Italy	Thanks for your replies... interesting links. I hope these sovteks survive as long as I need to finish my next project. On ebay I noticed the EH gold grid sell for 100euro per matched pair, it seems to be quite a good price. Every now and then I also spot TJs. WE are utterly out of my budget. Gianluca

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