Diodes and Noise

[tubeswell]

Does the type of diodes used in an amp have anything to do with slow amp or fast amp?

My rocket octal power section using IN4007 diodes verses Henry's Red Plate Blackverb (Dumble) style circuit the Red Plate is fast and easier to play compared to my Rocket both are 50-60 watts range. Or is that more in the filter stages and choice of choke etc?

I think its probably more to do with CRC vs CLC filtering and the rating of the PT and whether you have considerable voltage drop in the B+ somewhere (like in the rectifier) etc than what type of diodes you use in the rectifier. I can't see how the choice of diodes would make any difference to the sag and bloom etc (if that's what you mean by 'fast' and 'slow').