Oldfield Amplifiers
User Guide
Performance Notes:
•
For a more “tweed” type tone try replacing the preamp tubes with a high quality 12AY7’s and the
rectifier tube with a 5Y3. If you are unfamiliar with replacing tubes this should be done by a qualified
service technician.
•
For a little higher gain try replacing the preamp tubee with a 12AX7’s.
•
To blend the two channels run a jumper between the low gain input of
channel one and
the high gain input of channel 2. Plug your instrument into the high gain input of channel
1. Adjust volumes to taste.