Quote Originally Posted by Maggusch View Post
Hi there,

I habe a 25RS phono integrated. It should be one of his first RS cause it originally came with two 300VA toroids in a seperate silver housing different in dimensions. Glenn (Rip) was so kind to sell be an empty black enclosure in wich I had turned in the PSU.

My MM phono tends to sound a bit distorted and somehow a bit decraised in gain lever. Is it possible that I have to change the tubes cause I bought it second hand and don't know the age of the tubes. I own this amp for 4 ys, now.

Tubes that are used:

2 Philips Miniwatt ECC83
1 EH 12BH7AEH Goldpin
2 Watford Valves Cryo ECC83S
1 Valvo 85A2 OG3

Maybe some pins are black/detoriated so bad contact




Thank you for your insights
Maybe you can try your linestage valves in the phono section and see if the problem is still there?