b2
Well-known member
Hi All ,
For some days,I walk in the "garden of electron tube" :...I've explored ;D ;D and found some references which were designed for computer system .
Thoses are very nice 7pin and SQ tube design,long life,low microphonics as E90cc and E92cc,AND CHEAP
E92cc and E90cc are both Triode BUT with a Common Cathode ;D ;D.
For E90cc/
Heaters run on 6.3V/0.4A.
Va=100V
Ia around 6mA.
S=6
µ=27
With Ra=20K ,Rk=250R and Rg might be around 50K.
I was wondering to used this tube in LineAmp, ;D ;D running the 2 triode sections in an output transformer which can passed Ia and the HT
OR
In the 2 section, the grid connected together + the anode connected together + nice output caps and a transformers .
The E90cc as a µ=27 and the E92cc as a µ of 45,so I was wondering if we can do a Gain stage with E92cc.................... .........Yes I think if we used it in Symetrical just after the input transformer...one section for one side of transformer and the 2 section for the other side ;D
With a 1:10 input transformer + E92cc Gain stage+pot Level+E90cc LineOutput+Output tranformer... :
This might work as a mic preamp????
Didn't have a tube simulator..... BUT I think it's would be interesting to simulate it ...just to see what thoses computer tubes will do ;D
E92cc and E90cc are cheap tube
Best regards,Bruno.
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For some days,I walk in the "garden of electron tube" :...I've explored ;D ;D and found some references which were designed for computer system .
Thoses are very nice 7pin and SQ tube design,long life,low microphonics as E90cc and E92cc,AND CHEAP
E92cc and E90cc are both Triode BUT with a Common Cathode ;D ;D.
For E90cc/
Heaters run on 6.3V/0.4A.
Va=100V
Ia around 6mA.
S=6
µ=27
With Ra=20K ,Rk=250R and Rg might be around 50K.
I was wondering to used this tube in LineAmp, ;D ;D running the 2 triode sections in an output transformer which can passed Ia and the HT
OR
In the 2 section, the grid connected together + the anode connected together + nice output caps and a transformers .
The E90cc as a µ=27 and the E92cc as a µ of 45,so I was wondering if we can do a Gain stage with E92cc.................... .........Yes I think if we used it in Symetrical just after the input transformer...one section for one side of transformer and the 2 section for the other side ;D
With a 1:10 input transformer + E92cc Gain stage+pot Level+E90cc LineOutput+Output tranformer... :
This might work as a mic preamp????
Didn't have a tube simulator..... BUT I think it's would be interesting to simulate it ...just to see what thoses computer tubes will do ;D
E92cc and E90cc are cheap tube
Best regards,Bruno.
-