Tungsol KT 170 just landed

[rich121]

I have a pair of QuickSilver V4 mono amps designed for the KT150... I am VERY interested in these tubes!

Over the past few months I have written Tung-Sol and they do not reply... all I want are official data tables
Any more information on these tubes?

 

[montesquieu]

Tube Specs: https://shop.ehx.com/catalog/addimages/kt170-tung-sol-specs-curves.pdf

 

[rich121]

Tube Specs: https://shop.ehx.com/catalog/addimages/kt170-tung-sol-specs-curves.pdf

I was hoping for something 'official' from Tung-Sol.
My QuickSilver V4's, which were designed for the KT150 tube, have a low screen voltage on the output tubes of 300 volts, if these Data Sheets are correct, would that be too low of a voltage?

 

[montesquieu]

I was hoping for something 'official' from Tung-Sol.
My QuickSilver V4's, which were designed for the KT150 tube, have a low screen voltage on the output tubes of 300 volts, if these Data Sheets are correct, would that be too low of a voltage?

This is official - the Tung Sol brand is owned by Electro Harmonics. Link is to the EH web site.

 

[matakana]

I was hoping for something 'official' from Tung-Sol.
My QuickSilver V4's, which were designed for the KT150 tube, have a low screen voltage on the output tubes of 300 volts, if these Data Sheets are correct, would that be too low of a voltage?

If you go to the Audiophonics site and search Tungsol, you will see the KT150/170 and more info along with data sheets for both.

 

[montesquieu]

If you go to the Audiophonics site and search Tungsol, you will see the KT150/170 and more info along with data sheets for both.

Same datasheet as the one I linked to ....

 

[matakana]

Same datasheet as the one I

Same datasheet as the one I linked to ....

For some reason, when the link is shown there are thick lines put through the sentences, this must be an apple issue , maybe to do with codecs? Iam using a Iphone!

 

[matakana]

For some reason, when the link is shown there are thick lines put through the sentences, this must be an apple issue , maybe to do with codecs? Iam using a Iphone!

 

[montesquieu]

Document pdf attached - reads fine on a Macbook.

 

[ACHiPo]

You might want to check these out...

4 each Matched and Cryo treated Premium Tung-Sol KT 150 tubes (96 hours)

4 each brand new (96 hours) KT 150 tubes that were matched and cryo treated by Upscale Audio prior to shipment (they burned them in for 75 hours, I did the rest).Tubes are in the original boxes and in mint condition. I found them to be to bright for my liking which is why I'm selling them.

www.usaudiomart.com

 

[matakana]

Document pdf attached - reads fine on a Macbook.

Not on my iphone, still has the lines through! crackers!

 

[matakana]

You might want to check these out...

4 each Matched and Cryo treated Premium Tung-Sol KT 150 tubes (96 hours)

4 each brand new (96 hours) KT 150 tubes that were matched and cryo treated by Upscale Audio prior to shipment (they burned them in for 75 hours, I did the rest).Tubes are in the original boxes and in mint condition. I found them to be to bright for my liking which is why I'm selling them.

www.usaudiomart.com

Why? these are KT150.

 

[rich121]

You might want to check these out...

4 each Matched and Cryo treated Premium Tung-Sol KT 150 tubes (96 hours)

4 each brand new (96 hours) KT 150 tubes that were matched and cryo treated by Upscale Audio prior to shipment (they burned them in for 75 hours, I did the rest).Tubes are in the original boxes and in mint condition. I found them to be to bright for my liking which is why I'm selling them.

www.usaudiomart.com

Why? Not even a good price...

 

[rich121]

Hm...
I asked the founder/owner of QuickSilver, Mike Sanders, if the KT170 would work in my V4 mono amps, as they were designed around the KT150's and he just sent me an email stating:

"The KT150 sounds much better."
and
"We do have these tubes now and they do put out a lot of power but at much higher distortion than the KT150. They would
work in the V4 but would not sound as good as the KT150."

Was not expecting that response...

 

[matakana]

Hm...
I asked the founder/owner of QuickSilver, Mike Sanders, if the KT170 would work in my V4 mono amps, as they were designed around the KT150's and he just sent me an email stating:

"The KT150 sounds much better."
and
"We do have these tubes now and they do put out a lot of power but at much higher distortion than the KT150. They would
work in the V4 but would not sound as good as the KT150."

Was not expecting that response...

Does not make sense, if this was the case allnic or jadis would not have released KT170 models? time will tell.

 

[rich121]

Does not make sense, if this was the case allnic or jadis would not have released KT170 models? time will tell.

I was very surprised when I read his reply... maybe the tubes don't work with my amp for some reason, maybe the low screen voltage on the output tubes (300 volts) is not high enough for the KT170?

 

[ketcham]

In conversation with KS, my understanding to attain the best benefits the KT170 offers, some circuit and chassis redesign was needed. Larger power transformer, larger chassis with thicker metal and other implementation to reduce vibration. Their new integrated T-2000 30th Anniversary KT170 changes wattage rating from 100 W to 120 W.

 

[rich121]

In conversation with KS, my understanding to attain the best benefits the KT170 offers, some circuit and chassis redesign was needed. Larger power transformer, larger chassis with thicker metal and other implementation to reduce vibration. Their new integrated T-2000 30th Anniversary KT170 changes wattage rating from 100 W to 120 W.

My Quicksilver V4 mono amps will use the KT170 no problem, transformer is already plenty large enough, I have plenty of space between the tubes to fit the KT170, but Mike Sanders of Quicksilver says he tried using the KT170 in his Mono 120 amp and that the KT170 was much noisier than the KT120 tube.

Not sure what it would take to 'quiet' the KT170 so I can use it in my V4 mono amps?