Hammond 290-series Guitar amp PTs

[prosounddaryl]

Hi Daryl

Um... I don't believe you got it it...

This line is the most important regarding the autoformers:

None of these devices are appropriate replacements for the OT in a tube amplifier.

Regarding the amp you have and what mods you might make, you have to think about what tone you want to have compared to the tone you actually have. Then try to close the gap appropriately. An easy change to make to the PA is to increase the feedback loop values by a factor of ten. Gain remains the same but the tone will be more dynamic.

Have fun

OK, perhaps I didn't get it. As humbly and sincerely as possible, why would that be the case? They are iron and copper windings. If I can provide a reflected impedance load that the supply side wants to "See", why would a higher quality piece of copper and Iron give you less performance?

But thank you for the second part, and that is exactly the type change I would hope to make. I am guessing you have some information on the site that can walk me through this? If not, would you let me know how this is done?

Thanks for your help.