Hello all,
My power transformer only supplies 1.2 amps to my 2x 12AX7 and 2x 12AU7 tubes (ei. just barely enough). This makes it impossible for me to swap in some 12BH7s in place of the 12AU7s because the 12BH7s draw .6 amps each, which would push my current draw up to 1.8 amps.
I've just purchased a 120v primary to 6.3v @ 3 amp secondary filament transformer and will need some tips on installing it. Here's what I think I need to do.
1) Extend the leads on the new (to me ) transformer (they are fairly short)
2) Find a suitable mounting position in the chassis
3) Disconnect the existing 6.3v leads which power the 12**7 tubes, roll them up and isolate them (maybe use marettes, tape?)
3) Roll up and isolate the centre tap on the new transformer
4) Twist the new 6.3v leads and route them along the side of the chassis (shortest path) - solder where old 6.3v supply was connected
5) Solder primary leads to back of mains plug, parallel to existing leads.
Please correct any mistakes I have made in my thinking or provide any other tips which you think might be helpful. I am very new to this.
My power transformer only supplies 1.2 amps to my 2x 12AX7 and 2x 12AU7 tubes (ei. just barely enough). This makes it impossible for me to swap in some 12BH7s in place of the 12AU7s because the 12BH7s draw .6 amps each, which would push my current draw up to 1.8 amps.
I've just purchased a 120v primary to 6.3v @ 3 amp secondary filament transformer and will need some tips on installing it. Here's what I think I need to do.
1) Extend the leads on the new (to me ) transformer (they are fairly short)
2) Find a suitable mounting position in the chassis
3) Disconnect the existing 6.3v leads which power the 12**7 tubes, roll them up and isolate them (maybe use marettes, tape?)
3) Roll up and isolate the centre tap on the new transformer
4) Twist the new 6.3v leads and route them along the side of the chassis (shortest path) - solder where old 6.3v supply was connected
5) Solder primary leads to back of mains plug, parallel to existing leads.
Please correct any mistakes I have made in my thinking or provide any other tips which you think might be helpful. I am very new to this.