JGlatz
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Posts: 26
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Post by JGlatz on May 7, 2015 17:15:46 GMT
As I mentioned I have both versions. I would recommend the version that is clear it is a better build and the board is labeled as to which is plate and which is grid. Also the way they glue the white version together when you put it in the Ember it is not parallel with the front of the amp. That bothered me it may not others.
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Post by richard51 on May 8, 2015 2:17:08 GMT
As I mentioned I have both versions. I would recommend the version that is clear it is a better build and the board is labeled as to which is plate and which is grid. Also the way they glue the white version together when you put it in the Ember it is not parallel with the front of the amp. That bothered me it may not others. thank you for all your passiuon and information.. i will order the transparent version.....I think about the HYTRON VT232 E1148 CV6 i think its an equivalent of the 7193 tube......Is this tube correct ? perhaps Solderdude or Jeremy will know the answer....
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JGlatz
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Posts: 26
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Post by JGlatz on May 8, 2015 16:48:36 GMT
From what I can see the VT232 appears to be pretty equivalent to the 7193. There is not a lot of information available for this tube. The only thing you would have to be aware of is the placement of the grid and plate caps. On the 7193 tube the plate cap is above pins 1 and 8 (where the key notch is on the tube socket). I can't find information that tells you which one it is on the VT232 and the pictures are not clear. These also seem to be less available unless you have a good source for them.
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Post by richard51 on May 9, 2015 0:17:07 GMT
From what I can see the VT232 appears to be pretty equivalent to the 7193. There is not a lot of information available for this tube. The only thing you would have to be aware of is the placement of the grid and plate caps. On the 7193 tube the plate cap is above pins 1 and 8 (where the key notch is on the tube socket). I can't find information that tells you which one it is on the VT232 and the pictures are not clear. These also seem to be less available unless you have a good source for them. thank you for your kind help...But i dont have a clue about your remark about pins 1 and 8.... I was thinking that the vt232 connection or the 7193 was the same... is not the same adapter? i am not an engineer.... i apologize for my ignorance thanks for your help.... i will buy it and communicate here if i had problem..i hope you will help me with that ...thanks to you.... the vt232 is a cv6 tube type... the adapter connect this family tube vt 232 or 7193 to 6ns7 basis or adapter... the two similar little horns on the tube are connected by the adapter ( one for the anode the other for the grid) i dont understand your remark about pins 1 and 8... this is the same adpter for the vt 232 and the 7193....where is the problem? thanks and i am sorry for my ignorance....
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Post by richard51 on May 9, 2015 0:47:25 GMT
let me explain : HYTRON VT232 E1148 CV6 tube.... with the same adapter you described may i connect directly this tube on the 6ns7 adapter made by Jeremy?
(Dual 6C8P 2C22 7193 CV6 CV3601 TO 6SN7GT B65 CV1988 tube converter adapter) i understand that this adapter transfer any cv6 tube to a 6ns7 basis like the adapter i purchase from Jeremy.... My hytron is a cv6 family tube .... what is the problem.... Is it necessary to look for another kind of adapter ? thanks and sorry for my limitation
this is a description of the Hytron : Interesting and rare 1940's octal-based glass triodes manufactured for US miltary in the United States by Hytron. These tubes are designed as VHF oscillators or audio amplifiers, some say the letter E designates for export; similar in many ways to triode 6J5. Two top caps, one for the grid, and the other for the anode. Bottom getters, solid horizontal black plate construction wit h mica spacers. Tube bases are printed HYTRON VT-232 MADE IN U.S.A., SC7382A. Glass etched U.S. E1148 MADE IN U.S.A. and production date (varies, mostly early 1940's). VT232 vacuum tube
Antique NOS Hytron VT-232 / E1148 / CV6 HTN (8-pin octal base Triode) made in USA, Joint Army Navy (JAN). New in box (NIB) available for $17 (35% off) per tube. Match pair available. Worldwide shipping with tracking (See fees and conditions)
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JGlatz
valued member
Posts: 26
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Post by JGlatz on May 9, 2015 1:32:28 GMT
The adapter we are talking about will plug into the adapter that Jeremy made. This allows the two tube setup. The adapter will work with both the VT232 and the 7193. My remark about pins1and 8 meant that the anode cap on the 7193 is on the same side as pin s 1&8 on the base of the tube. If this still does not make sense let me know and I will try and come up with a picture.
If you do a search for the tube data sheet for a 2C22 (same as 7193) I think you will see what I am talking about. Please don't worry we'll get through this and you will be happy you tried it.
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Post by richard51 on May 9, 2015 1:57:24 GMT
thanks very much for your help.......if i understand you : we dont know if on the vt 232 the anode cap correspond to the same pin than in the 7193 tube,,, is this the problem you are stating? if this is the case i cannot use the adapter in the same manner you use it with the 7193 tube.....
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JGlatz
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Posts: 26
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Post by JGlatz on May 9, 2015 2:13:25 GMT
The adapter is ok to use. I just don't know if the anode cap is in the same location on the cv6 as it is on the 7193. Everything is still ok to use we just have to figure out which is the anode cap on the cv6.
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Post by richard51 on May 9, 2015 2:23:00 GMT
i had made a net research.....my result are that the distribution of the pins in the vt 232 and 7193 are similar....is not it? www.tubecollector.org/cv6.htmwww.tubecollector.org/7193.htmthey say that : This valve (7193) is very similar in construction to the CV6 hence the octal distribution of the pin is similar.... i think i can use the same adapter for my hytron tube... what do you think?
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JGlatz
valued member
Posts: 26
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Post by JGlatz on May 9, 2015 2:29:33 GMT
Yes you can use the same adapter.
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Post by richard51 on May 9, 2015 2:44:27 GMT
thanks i will order it.... your experience before with the 6ns7 convince me... thanks for your time....
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Post by musicman on May 9, 2015 15:05:31 GMT
Okay no one is allowed to post ANYTHING that I would want any more, just ordered an adapter and two tubes. Boy just when you thought you were done, when these get here, if they work as well for me, then I better not frequent this place anymore! Thanks for the heads up on this combo, looks really nice, always liked the tubes with the external connections.
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Deleted
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Post by Deleted on May 10, 2015 15:08:55 GMT
So.. My Project Ember Mk2? I love it. I do have a question though & yet again it's related to the variable output resistance. When I had the Project Ember tour unit for some weeks it was clear to me that the best sound (to my ears) was achieved by using the lowest R setting. At that time I only had the stock valve though. Now that I have several to choose from I'm finding that it's not quite so cut & dried as it was before. The Mk2 shipped with a JJ ECC82 and curiously I noticed the output R was set to medium. Perhaps Jeremy was trying to tell me something, I don't know. That is the best setting with that valve though. What I found with the stock valve was that the higher the resistance the darker the sound got. To the point of muddiness on high R. Now my two favourites are a Sylvania 'Chrome Dome' 6SN7GTA & a GE VT231 6SN7GT. What's strange is that with both of those when I increase the output R I actually lose bass. This is clearly contrary to my expectations so what's happening? And my two favourites? The differences between them are slight but noticeable. The Chrome Dome is the warmer of the two, smoother across the board. The VT231 on the other hand is punchier & more dynamic. I also own a National Union 6SN7Gt but to be honest it seems to add nothing. It's darker, like the Sylvania, but without the detail retrieval. Any thought on this would be most welcome. Gordon. edit 1 - I should also point out that all this is with bit-perfect & no EQ. Anything else would just muddy the waters. edit 2 - This is all assessed using the HD 650 (what do you mean, there are other headphones out there?)
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solderdude
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measureutternutter
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Post by solderdude on May 10, 2015 17:58:35 GMT
When I had the Project Ember tour unit for some weeks it was clear to me that the best sound (to my ears) was achieved by using the lowest R setting. At that time I only had the stock valve though. Now that I have several to choose from I'm finding that it's not quite so cut & dried as it was before. The Mk2 shipped with a JJ ECC82 and curiously I noticed the output R was set to medium. Perhaps Jeremy was trying to tell me something, I don't know. That is the best setting with that valve though. What I found with the stock valve was that the higher the resistance the darker the sound got. To the point of muddiness on high R. The best output R setting depends on the headphone used. The HD600 may work best on high output R, the HD650 may become too warm and a low output R may be more suited. There is no true 'right' or 'wrong' here... just personal taste. Now my two favourites are a Sylvania 'Chrome Dome' 6SN7GTA & a GE VT231 6SN7GT. What's strange is that with both of those when I increase the output R I actually lose bass. This is clearly contrary to my expectations so what's happening? dunno, don't have those tubes but it should work exactly the same for other tubes (the output R thing)
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Post by richard51 on May 10, 2015 18:20:21 GMT
Okay no one is allowed to post ANYTHING that I would want any more, just ordered an adapter and two tubes. Boy just when you thought you were done, when these get here, if they work as well for me, then I better not frequent this place anymore! Thanks for the heads up on this combo, looks really nice, always liked the tubes with the external connections. i am with you on that.... Just thought after my bugle boy that the game was over...... But after that the 6ns7 tube annihilated my amperex and bugle boy.... Then i thought that i may relax now.... Damn it, i had just ordered 3 1193 national union tubes with an adapter .... the good point is this wil be the third revolution in sound, perhaps the last i hope....My point is nobody had heard the Ember true sounding potential.... If i had the bad fortune to have bought any amp less than one thousand dollars, what I would have had for this 1000 dollars ? a unique sound , a unique revolution not three , i had read some review comparison between the Ember ans some other Amp, not one has done true justice to the Marvellous Ember...The ember doesnt have any sound of his own, but he had multiple possibilities of sound... i am truly convinced that if you have speakers and multiple headphones no other amp fit the bill...Of course if you pay more than 0ne thousand dollars perhaps...thanks to you all
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