Hi @scm - I just got my Modwright 9.0X PSU moded to use tube rectification. I am ready to try some vintage tubes. There is a white ceramic resistor right next to the tube socket. Tubes with wide bases (like the coke bottle style RCA 5R4GYs) seem to tilt the resistor a little bit. Not a lot but surely noticeable. Modwright assured me that this was not a problem - but my OCD is kicking in to high gear. What was your experience like? See pics below. https://imgpile.com/images/C3jlIl.jpg Thanks!
|
@scm - thanks. I did listen to the Sovtek. It defintely sounds more refined and there is a little more 'meat on the bone' - so to speak when compared to the SS rectifier. But I am waiting for the tonal richness and the big sound stage that Dan talks about. I hope the vintage tubes will deliver that! |
@scm - I managed to get my hands on a NOS Mullard 5AR4 - boy what a transformational difference it made! Rich tonality, clean sound and wide sound stage. @theflattire - the upgrade is worth the $. |
Kristen did mention that the 5AR4 has the lowest forward voltage drop - I assume it just means more output DC voltage. Presumably this makes it possible for the unit to deliver the full spectrum of audio frequencies and hence sounds more dynamic. I still badly want to try the RCA Double Getter 5R4GY - they are supposed to rival the WE 274Bs. But I am still concerned about the wide base of the 5RrGY tilting one of the ceramic resistors. I got an email from Mod saying the tilt is fine and I should ptobably trust them. But in all my years of using tube gear - never have I seen any component touch each other with the exception of shielded wires. Still curious if others had similar issues with this particular tube rectification mod. Please share |
