[adeadcrab]

cetron 7236 might be easier to get, and is apparently a better match for that amp

 

[JKDJedi]

cetron 7236 might be easier to get, and is apparently a better match for that amp

And they're both probably equal at gain, I take back the 5998 having more gain. Up to what your looking for in sound really. .

 

[mordy]

Tung Sol tubes - the 5998 is harder to get and more expensive; the Tung Sol 7236 is much cheaper. The prices vary a lot right now, but the roughly the market value is $100 and up for the 5998 and around $40 for the 7236 for singles.

6080 - Amplification Factor 2 - Transcond. 7000 µmhos

7236 - Amp Factor 4.8 - Transcond. 12,500 µmohs

5998 - Amp Factor 5.4 - Transcond. 15,500 µmohs

The amplification factor (gain) is very similar for the 7236 and the 5998 and more than two times higher than 6AS7/6080 tubes. It does not mean twice as loud, but you will hear a difference in gain using those tubes.
If you are patient there are bargains coming up here and there.....

 

[fuzzroffe]

Mu around 5 would certainly be enough, it’s really just to drive the power amp a little more when I’m using my iPad or other low level sources. I’ve read that the 7236 is less "tubey" sounding than the other big twin triodes, is that correct?

 

[LoryWiv]

Mu around 5 would certainly be enough, it’s really just to drive the power amp a little more when I’m using my iPad or other low level sources. I’ve read that the 7236 is less "tubey" sounding than the other big twin triodes, is that correct?

I definitely find the 7236 less "tubey", producing excellent detail retrieval, instrument separation and well-balanced frequency neutrality. In a warm-leaning system and with a warm driver tube this is an asset whereas can be less so with other gear.

 

[JKDJedi]

Mu around 5 would certainly be enough, it’s really just to drive the power amp a little more when I’m using my iPad or other low level sources. I’ve read that the 7236 is less "tubey" sounding than the other big twin triodes, is that correct?

That's correct, with a nice warm preamp like a Sylvania and you can get a nice pairing.

 

[Velozity]

Mu around 5 would certainly be enough, it’s really just to drive the power amp a little more when I’m using my iPad or other low level sources. I’ve read that the 7236 is less "tubey" sounding than the other big twin triodes, is that correct?

Yes that's true. Choose a warm-ish driver to pair with it. When I run a pair of TS 7236 in my GOTL I almost always choose a GEC / MOV or Mullard driver tube. Makes for a tasty sweet and salty mix! 7236 is an amazing tube at a great value. I bought 4 extras because I like it that much.

 

[JKDJedi]

@Ripper2860 Maybe continue here? Yes please let me know how that goes with your comparisons, the 7236 have the edge in punch, where the 5998 are just velvety smoother. Like em both.

 

[Ripper2860]

Thanks!! Certainly new to the whole 6AS7 family of power tubes thing, so I'm sure I'll learn lots by hanging out here.

 

[JKDJedi]

So the tube worked in both channels for one session. Next time I powered up the amp (without touching the tube at all let alone removing it) the left channel had completely cut out again... Tried the solder trick today with 30 seconds on each pin plus adding a bit of extra solder to the tip. No luck! Still only one channel. I took the tube out and gave it a dozen good whacks against my mouse pad. Tried it again and voila, both channels are working again! Very strange - I guess I'll just keep whacking it...

Did you ever get this going? If not ship that baby over here to me, I'll fix it for ya.

 

[attmci]

Bold added by me. This reads like it was put together by Western Electric's sales and advertising group. To imply that all one has to do is to pull out an inferior low power 6SN7GT and swap in a more powerful WE421A (or 5998 or 6AS7G) and everything will be better is hogwash. lol

Edit: And I should add, Western Electric didn't make the 6SNGT. Rather, RCA developed it and owned all the patents.

The guy posted ahead of you is going to be a dealer soon. LOL

 

[JKDJedi]

Anybody here have a JAN Chatham 6080?

 

[Ripper2860]

I have one on the way.

Markings are nearly missing, but one can barely make out CHA. Needs a little TLC, but measures strong according to the seller.

 

[JKDJedi]

I have one on the way.

Markings are nearly missing, but one can barely make out CHA. Needs a little TLC, but measures strong according to the seller.

Think we got ours from the same seller. Mine hasn't shipped yet. #anxious

 

[Slade01]

@JKDJedi weren't you happy enough with your sylvania gold brand 6080s? yes i have a chatham 6080.