Can I replace 6H9C (6SL7) with 6SN7?

[supernut]

6H9C (6SL7) is a high mu (70) and Ih of 0.3A

6SN7 is a medium mu (20) and Ih of 0.6A

Can I replace 6SN7 to 6H9C?

 

[DF96]

I am unsure which direction you are going, as the thread title and your last sentence seem to say opposite things.

Obviously you need to be able to supply the required heater current.

It is unlikely that a well-designed circuit for one of them will also be a well-designed circuit for the other, as the two valves have different characteristics. However, if you are not fussy about sound quality or the circuit is badly designed for the valve it has then a swap may be worth trying.

 

[supernut]

Sorry for my English.

I try to put 6SN7 (that I have) to replace 6H9C in 300B amp which I don't have (6H9C)

just curious that Can I replace 6SN7 to (6H9C in 300B amplifier).

 

[supernut]

https://world.taobao.com/item/17174726212.htm?spm=a312a.7700825.1997196601.25.KaWIK1

I am interested in this amplifier. But I just curious. Can I replace 6SN7 into this amp?

 

[DF96]

6SN7 has much less gain than 6SL7, and typically requires different component values.

 

[supernut]

Thank you so much Mr DF96. I understand now

 

[famousmockingbird]

Wait......so you already bought one? I know you were choosing between two models. Did you get the lower voltage model? Did they ever disclose a schematic to you?

Post some internal pics if you can, we love tube porn over here

 

[supernut]

I bought many 6SN7s for my Cary AE1 project. However I want to purchase 300B integrated amp that I can utilized 6SN7s in my inventory.

I just found 1 product SSRP
https://world.taobao.com/item/17174726212.htm?spm=a312a.7700825.1997196601.25.KaWIK1

However it is 6H9C. So it can't be replace. I have to find other.

 

[supernut]

I try to find 300B 6SN7 Push pull for about 25 watts. So I will buy it and purchase Dali Zensor 3 which is good to my ears and very cheap.

Anyone can suggest not expensive product that use 5U4G 6SN7 and 300B?

I have to post new thread instead.