G
Gersen777
New member
I picked up a 122 Mk II which cleaned up pretty well. Heads looked good, transport had problems which I spent quite a while fixing. Then cleaned and adjusted the heads, and finally got it playing very well, with excellent top-end response, Dolby OK.
Then when I tried recording, the sound was completely dull, muffled worse than anything in my experience. I tried calibrating the bias, used 3 different types of tape, but no dice. It's as if everything above 3Khz or so is chopped off -- sounds like a 3-way speaker with everything dead but the woofer. The sound is steady... but very dull.
I don't understand this. The heads do not appear to be worn, and everything in the tape well is adjusted correctly as far as I can determine. It does play tapes recorded on other machines very clearly; it just doesn't record worth a cent. Could there be some problem in the bias circuit that is causing it to run too hot and high?
Then when I tried recording, the sound was completely dull, muffled worse than anything in my experience. I tried calibrating the bias, used 3 different types of tape, but no dice. It's as if everything above 3Khz or so is chopped off -- sounds like a 3-way speaker with everything dead but the woofer. The sound is steady... but very dull.
I don't understand this. The heads do not appear to be worn, and everything in the tape well is adjusted correctly as far as I can determine. It does play tapes recorded on other machines very clearly; it just doesn't record worth a cent. Could there be some problem in the bias circuit that is causing it to run too hot and high?
