Hello Miguel,
The 55A was offered in two different versions.6550 or EL34.There were 2 versions of the EL34 model.One version has 8-16 ohm taps while the other has 4-8-16 ohm taps.Which version do you have?
Best regards,
Rich
The 55A was offered in two different versions.6550 or EL34.There were 2 versions of the EL34 model.One version has 8-16 ohm taps while the other has 4-8-16 ohm taps.Which version do you have?
Best regards,
Rich