YG, NEVER replace a fast blow fuse with a slow blow fuse. This is a sure-fire recipe for...fire, if something goes wrong.
Also, I believe Telefunken 12AT7/Ecc81 tubes will throw your Shindo preamp off-balance. Tele 12AT7s sound very detailed and crisp. These are great to improve the sound of low-resolution tube gear, not so good if your preamp is voiced with other tubes.
I hope this helps
Also, I believe Telefunken 12AT7/Ecc81 tubes will throw your Shindo preamp off-balance. Tele 12AT7s sound very detailed and crisp. These are great to improve the sound of low-resolution tube gear, not so good if your preamp is voiced with other tubes.
I hope this helps