"More Than Meets the Eye!"
This isn't going to happen today...actually, April's in the shower or I wouldn't even be posting on one of her rare days off. This new transformer came in the mail today, so I had to play Show and Tell when the chance arose, but that's because I'm secretly (it's still a secret, right?) an adolescent boy playing Science Fair.
About a year ago I built a Madbean Retrograde Octavia clone. It was OK-ish, but I wasn't all that into it so I sold it. It used the transformer on the left, which is a Xicon 42TM022. The published specs for that transformer's primary are 1.5k of impedance and 65 ohms of resistance.
On the right is the Xicon 42TM011 from the same series. You can see it's a larger transformer, but the primary specs are similar. Its primary specs out at 1.5K and 120 ohms.
These transformers aren't rated by the manufacturer for inductance, though, and it's been suggested that the difference in inductance between the two makes a notable difference in the octave's presence in an octave fuzz circuit.
General Guitar Gadgets makes an Octavia board that takes the 42TM011 transformer, though. I also have another Madbean Retrograde board sitting in my desk. Now, a better test would be to put these two transformers on a switch and A/B between them, but the extra wire and stuff would influence the inductance and it's generally a hassle, so the quick first step I'd like to try is a simple A/B between the circuits to see if the bigger transformer yields anything significant.
But later...not today.
"More Than Meets the Eye!"
This isn't going to happen today...actually, April's in the shower or I wouldn't even be posting on one of her rare days off. This new transformer came in the mail today, so I had to play Show and Tell when the chance arose, but that's because I'm secretly (it's still a secret, right?) an adolescent boy playing Science Fair.
About a year ago I built a Madbean Retrograde Octavia clone. It was OK-ish, but I wasn't all that into it so I sold it. It used the transformer on the left, which is a Xicon 42TM022. The published specs for that transformer's primary are 1.5k of impedance and 65 ohms of resistance.
On the right is the Xicon 42TM011 from the same series. You can see it's a larger transformer, but the primary specs are similar. Its primary specs out at 1.5K and 120 ohms.
These transformers aren't rated by the manufacturer for inductance, though, and it's been suggested that the difference in inductance between the two makes a notable difference in the octave's presence in an octave fuzz circuit.
General Guitar Gadgets makes an Octavia board that takes the 42TM011 transformer, though. I also have another Madbean Retrograde board sitting in my desk. Now, a better test would be to put these two transformers on a switch and A/B between them, but the extra wire and stuff would influence the inductance and it's generally a hassle, so the quick first step I'd like to try is a simple A/B between the circuits to see if the bigger transformer yields anything significant.
But later...not today.