Post
by vh junkie » Thu Jan 01, 2015 8:17 am
Yes what Neil said about being sure the screens are wired to the choke side of the 8.2k/10k. If its not that, it sounds like something it mis-wired downstream.
If the choke is feeding the 8.2k, then the 10k... the 10k should only be connected to the junction of the 82k/100 that feed the PI (v3); and a 10k that connects to one side of the preamp cap, and feeds the cathode follower (v2); then through another 10k to the other side of the preamp cap, and on to the 100k/100k junction that feeds v1. Makes sure there are no extra connections and that the connection to the tube anodes are wireds right.
Pics might help.
"With all due respect, sir, you're beginning to bore the hell out of me."
- Gunny Highway