Hi there
Just having the classic ono led issue. tried to now and have 1.24k over 67/53
have tried changing their values but the only thing that changes the reading is changing the Led. Any chance you could tell me the specs of the led you used please.
regards
dave
Hi, guy
How do I increse bass response of ONO ? because when I compared to CAT SL-1 result was ONO there's a less bass about 20%, why ?
What's type of 2SK170 on the MC stage ? GR,BL or V
Thanks
Anadigit
How do I increse bass response of ONO ? because when I compared to CAT SL-1 result was ONO there's a less bass about 20%, why ?
What's type of 2SK170 on the MC stage ? GR,BL or V
Thanks
Anadigit
The type of 2SK170 can be either BL or GR. It is important that the total rurrent thrugh the fets is not too much so the drain voltage is around 5-10V of the four fets.
Base response can be improved by adding a 220u cap in parallel of the 10u coupling caps.
You also may check the values of thee RIA correction components.
Base response can be improved by adding a 220u cap in parallel of the 10u coupling caps.
You also may check the values of thee RIA correction components.
Hi there,
my ONO just does not working any longer. I am reading the following voltage :
Q 24 E: 6,8 V
Q 14 E: 0,3 V
Q 15 D. 0,6 V
R67/53 Voltage: 1V
R 28 Voltage: 0,35V
What could be the problem ?
Thanks in advance and best Regards
my ONO just does not working any longer. I am reading the following voltage :
Q 24 E: 6,8 V
Q 14 E: 0,3 V
Q 15 D. 0,6 V
R67/53 Voltage: 1V
R 28 Voltage: 0,35V
What could be the problem ?
Thanks in advance and best Regards
Hi there,
problem solved.
Q24 ZTX 450 in the MC input was gone and Q6-2SA991 in the main circuit died as well.
Thanks for reading anyway. Probably this is useful for someone sometime.
problem solved.
Q24 ZTX 450 in the MC input was gone and Q6-2SA991 in the main circuit died as well.
Thanks for reading anyway. Probably this is useful for someone sometime.
I tried this and the voltage readings R53 & R67 has dropped to 1.18v from 1.24v and the voltage across the led is 1.78v. Do I need to drop it further by altering the values of R67 & R53? The 9110 still run quite hot.
