For 6AS7G tube rollers here .....
Jun 10, 2015 at 7:09 PM Post #2,042 of 9,574
  yes you are correct....good memory  
smile.gif

 
It is a 5AW4


You got to look for those angled plates. You got the right version. Very dynamic if I remember correctly. Dynamic is what you want in a rectifier.
 
Jun 10, 2015 at 7:12 PM Post #2,043 of 9,574
Yes, you are correct again..
 
Jun 10, 2015 at 9:49 PM Post #2,044 of 9,574
Jun 10, 2015 at 10:44 PM Post #2,045 of 9,574

I have stacks of tubes with me at work. I keep a big supply with me here so that if my house burnt down I would have a back up supply. Sad aye! Well I have 6 x CBS 5AW4 with me. This one is labeled GE. Look at the upside down V. You can thank Glenn for this tube. It is a gem he found.
 

 
Jun 10, 2015 at 11:54 PM Post #2,046 of 9,574
I've got one of those the only difference is the lettering is red it's GE..
 
Jun 11, 2015 at 5:31 AM Post #2,047 of 9,574
 

I have stacks of tubes with me at work. I keep a big supply with me here so that if my house burnt down I would have a back up supply. Sad aye! Well I have 6 x CBS 5AW4 with me. This one is labeled GE. Look at the upside down V. You can thank Glenn for this tube. It is a gem he found.
 

Yes, Glenn told me about this tube, also.
We have made changes in my amp, it will no longer use 5 volt rectifiers....but Glenn told me what he is going to do to it will be better than any 5 volt rectifier...so of course...I am all in  
smile.gif
 
 
Jun 11, 2015 at 8:16 AM Post #2,048 of 9,574
I think I have posted this before, but for those of you bargain hunting, these are actually nice sounding tubes, quiet, and true NOS/NIB...

http://www.parts-express.com/6as7ga-ge-jan-vacuum-tube--072-612

arrived the other day, not too bad..

How do these compare to RCA 6AS7G?
 
Jun 11, 2015 at 8:41 AM Post #2,049 of 9,574
  Man, all this talk about the Mullard 6080 makes me wanna give mine another shot. I bought a quad set from Langrex a while ago to use in my LD MK6 and they were very noisy. I think I'll just have to treat them with a little Deoxit and see what happens. I absolutely love the 5998's I use at the moment but you never know...
 
These are the ones I got: http://www.ebay.com/itm/311154206725?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
 
I'm currently trying out a bunch of driver tubes also, but that's for another thread:)

I cleaned the Mullards and the noise level is nowhere near what it was before. The pins looked fine before cleaning but it made a huge difference! Soundwise they're not even competing with the 5998's as far as I'm concerned though. Soundstage is much smaller and they lack the clarity and slam of the 5998's. Back in the box they went.
 
Jun 11, 2015 at 10:03 AM Post #2,050 of 9,574
I cleaned the Mullards and the noise level is nowhere near what it was before. The pins looked fine before cleaning but it made a huge difference! Soundwise they're not even competing with the 5998's as far as I'm concerned though. Soundstage is much smaller and they lack the clarity and slam of the 5998's. Back in the box they went.

Might look into those 5998s.
 
Jun 11, 2015 at 10:15 AM Post #2,051 of 9,574
Might look into those 5998s.

Interested in your impression of the 5998.  I have the stock 6080 that came with my BH Crack and used it for about a week before I got a pair of TS-5998 and a pair of Chathem 5998.  The TS-5998 have the best overall sound IMO but the Chathem 5998 are not to far behind and for about 1/4 the price a pretty good deal IMO.  The 6080 was ok but the sound seem to lack bass kick and the highs were somewhat bright with some songs.
 
Jun 11, 2015 at 10:55 AM Post #2,052 of 9,574
  Interested in your impression of the 5998.  I have the stock 6080 that came with my BH Crack and used it for about a week before I got a pair of TS-5998 and a pair of Chathem 5998.  The TS-5998 have the best overall sound IMO but the Chathem 5998 are not to far behind and for about 1/4 the price a pretty good deal IMO.  The 6080 was ok but the sound seem to lack bass kick and the highs were somewhat bright with some songs.

 
I am quite sure that all 5998s were manufactured by Chatham. No other company manufactured this tube. Of course, after Tung-Sol acquired Chatham in the late 1950's, the TS name began to appear on this tube. Therefore, I would guess that any apparent sonic differences between your TS and Chatham pairs is most likely due to their having been manufactured at different times.
 
Jun 11, 2015 at 12:36 PM Post #2,053 of 9,574
  Interested in your impression of the 5998.  I have the stock 6080 that came with my BH Crack and used it for about a week before I got a pair of TS-5998 and a pair of Chathem 5998.  The TS-5998 have the best overall sound IMO but the Chathem 5998 are not to far behind and for about 1/4 the price a pretty good deal IMO.  The 6080 was ok but the sound seem to lack bass kick and the highs were somewhat bright with some songs.

1/4 the price for Chatham vs Tung-Sol 5998's? Strange, they usually cost the same on ebay. I can't hear a difference between the two either. Internally they look the same, one thing I've noticed though is some of my Chathams have copper rods and some don't. None of my Tung-Sols have copper rods. Oh, and some have black, kind of shiny, plates and some have matte grey plates. 
I'd like to try the bottom getter version of the 5998 but they're very hard to find. There are some 421A's on ebay, which i guess are the same tube as bottom getter 5998, but they cost two legs and one arm, lol.
 
Jun 11, 2015 at 4:13 PM Post #2,054 of 9,574
  I cleaned the Mullards and the noise level is nowhere near what it was before. The pins looked fine before cleaning but it made a huge difference! Soundwise they're not even competing with the 5998's as far as I'm concerned though. Soundstage is much smaller and they lack the clarity and slam of the 5998's. Back in the box they went.


These are not the same labeling or box that my Mullards came with.  I can't make out any plate structural differences but I think despite the nominal 6080 designation that those tubes are CV 2984s.  Why this matters I am not sure, but the blue box Mullard 6080 is a very good tube with a full rich and clean sound.  I might add that they don't demonstrate the tendency towards warmth that Mullard is known  for.  I find I like them  more than my Chatham/Tung Sol 5998s.  I was surprised myself having really liked the 5998s.
 
Jun 11, 2015 at 4:32 PM Post #2,055 of 9,574
These are not the same labeling or box that my Mullards came with.  I can't make out any plate structural differences but I think despite the nominal 6080 designation that those tubes are CV 2984s.  Why this matters I am not sure, but the blue box Mullard 6080 is a very good tube with a full rich and clean sound.  I might add that they don't demonstrate the tendency towards warmth that Mullard is known  for.  I find I like them  more than my Chatham/Tung Sol 5998s.  I was surprised myself having really liked the 5998s.


Mine are rather late production, 1975, maybe that's why they're different.
 

Users who are viewing this thread

Back
Top