samgraysound
Well-known member
Hi,
I'm working on repairing a Vox Jaguar. The A# oscillator card was pretty messed up so I rebuilt it: replaced all caps, replaced a couple bad transistors, checked all the resistor values. Now its working but I can't get it in tune, the lowest I can get it is about 30 cents sharp of A#.
How can I tweak the values to bring the frequency down? Currently C1 and C2 are 22000pf each.
Schematic attached.
I'm working on repairing a Vox Jaguar. The A# oscillator card was pretty messed up so I rebuilt it: replaced all caps, replaced a couple bad transistors, checked all the resistor values. Now its working but I can't get it in tune, the lowest I can get it is about 30 cents sharp of A#.
How can I tweak the values to bring the frequency down? Currently C1 and C2 are 22000pf each.
Schematic attached.
