Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Tung Sol ECC803S reissue - thumbs down
Tung Sol ECC803S reissue - thumbs down
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 11th March 2012, 11:54 PM   #31
speakerfritz is offline speakerfritz  United States
diyAudio Member
Join Date: Jul 2008
added " and TELEFUNKEN discusion" to thread title. lots of good info about TELEFUNKEN tubes and someone might search for it.
  Reply With Quote
Old 12th March 2012, 01:49 AM   #32
Jim McShane is offline Jim McShane  United States
diyAudio Member
Join Date: Dec 2006
Location: Southwest Chicago Suburbs
I handle 100s of the Tung-Sols, and I have almost none come back from customers. I reject a few from my own testing of each batch, but not many at all. I'd use them in my own gear without hesitation.

For those of you who think that NOS stuff is virtually 100% reliable - I just rejected almost 50% of a batch of (30) 12AT7 1950s NOS GEs, and about 20% of a batch of (20) GE 12AY7s of the same vintage.

One last thing... In doozerdave's post he wrote:

At first I thought it must be a bad socket, or solder joint, but I've swapped in several other tubes since then without problems. I will try that tube again tonight (I stopped using it completely since it was affecting my tone tweaking) to see if it was a dirty socket contact, or something like that.
Often just the act of plugging in and unplugging tubes into a given socket will at least temporarily restore good contact. Get some small dental brushes or something similar and a god contact cleaner (I use DeOxit D5 by Caig), clean the socket and the Tung-Sol's tube pins thoroughly, then try the tube again.

As far as comparing reliability with NOS - keep in mind that NOS tubes are almost always screened by the sellers before shipping them out, whereas some current production tube sellers just send out the stock they receive and hope it all turns out okay. Obviously this skews any comparison. Also, the fact that at the present time (in the case of many tube numbers) the new stuff outsells the NOS by a large factor. So the mathematics dictates more bad examples of current production will enter the market and are more likely to be reported.

That's my $0.02 anyway...
  Reply With Quote
Old 12th March 2012, 10:26 AM   #33
doozerdave is offline doozerdave  Canada
diyAudio Member
doozerdave's Avatar
Join Date: Feb 2012
Location: Kitchener, Ontario
It seems that I have to retract my previous statement about Tung Sol reliability. I spent about an hour last night testing the suspect tube (and others) and could not make it fail again. It must have been a dirty socket connection. I'm quite happy about this, but sorry I prematurely polluted this thread. I cleaned all the sockets before starting the project, but must not have done a good enough job on that one.
  Reply With Quote
Old 12th March 2012, 06:27 PM   #34
Kay Pirinha is offline Kay Pirinha  Germany
diyAudio Member
Join Date: Oct 2011
Location: Somewhere in Germany
Originally Posted by Wavebourn View Post
I am happy with this one, it can be soldered under the socket as well:

Click the image to open in full size.
Here is a 6N17B datasheet in both Russian and English language. Enjoy!

But bear in mind that this subminiature double triode dissipates more than those common tubes in the 12AX7/12AT7/6SL7 range to which it can be compared. Due to it's much smaller envelope I think that it necessitates adequate cooling, e.g. by fins or by mounting it with a clamp to the metal chassis.

Best regards!
  Reply With Quote
Old 16th March 2012, 01:45 PM   #35
Kay Pirinha is offline Kay Pirinha  Germany
diyAudio Member
Join Date: Oct 2011
Location: Somewhere in Germany
Originally Posted by riccoryder View Post
It would be overly polite to call what J/J does a joke or marketing. Look at what's on Ebay listed under EL509 or 6KG6A. The real tubes are magnoval (large diameter 9 pin) with a plate cap, able to handle peak current of 1400 mA and pulse voltage to 7000 V in horizontal deflection service (line amp) in television sets, much like a 6LQ6, yet those being sold, with the number printed on them no less, have an octal base, no plate cap, and require so-called modifications.
Well, this is not J/J's unique feature:

Click the image to open in full size.
  Reply With Quote


Tung Sol ECC803S reissue - thumbs downHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tung-Sol 6SN7 flancfuster Parts 1 15th September 2010 06:48 PM
EL34 B review Tung-Sol kach22i Tubes / Valves 2 31st December 2009 05:49 PM
Experience please: Tung-Sol 6L6GC STR Johan Potgieter Tubes / Valves 0 4th June 2009 12:00 AM
tung sol gianis Tubes / Valves 0 24th February 2007 03:46 PM
Tung-Sol (new production) 6550s alexmoose Tubes / Valves 6 30th November 2006 09:48 PM

New To Site? Need Help?

All times are GMT. The time now is 09:28 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio