Gentlemen,
I currently am using a VTA ST70 in my system. Pio caps etc.
I also have another st70 I'll keep reasonably stock, that will be getting a 7199 circuit driver board.
The old board , a replacement, has carbon film resistors, and metal oxide in the higher wattage positions
Coupling caps are 716 orange drop.
All in all sounds pretty good.
I would like to take the opportunity to experiment a little with a mix of new carbon comp and metal film .
From what I read metal film is a must in the "grid to ground", and perhaps a couple other positions.
Is this reasonable? If so,what are the positions where metal film is best,and what are the functions of the given resistors.
Also should I stick with the 716's or would it be worth using something else like k40y pios in the circuit.
As for the VTA amp, Is the new octal driver a worthwhile upgrade over my current board? I was unable to see a rev. number on it but its slightly different from your pictured "classic" board. Id guess I did it about two years ago.
Thanks in advance
I currently am using a VTA ST70 in my system. Pio caps etc.
I also have another st70 I'll keep reasonably stock, that will be getting a 7199 circuit driver board.
The old board , a replacement, has carbon film resistors, and metal oxide in the higher wattage positions
Coupling caps are 716 orange drop.
All in all sounds pretty good.
I would like to take the opportunity to experiment a little with a mix of new carbon comp and metal film .
From what I read metal film is a must in the "grid to ground", and perhaps a couple other positions.
Is this reasonable? If so,what are the positions where metal film is best,and what are the functions of the given resistors.
Also should I stick with the 716's or would it be worth using something else like k40y pios in the circuit.
As for the VTA amp, Is the new octal driver a worthwhile upgrade over my current board? I was unable to see a rev. number on it but its slightly different from your pictured "classic" board. Id guess I did it about two years ago.
Thanks in advance