@rocky1313 : Thanks for your post! Otherwise I would have done an unnecessary cap job on the Andromeda amp - and still had the right channel hum problem!
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- 12 posts total
- 12 posts total
@rocky1313 : Thanks for your post! Otherwise I would have done an unnecessary cap job on the Andromeda amp - and still had the right channel hum problem! |
Tone button IN means the tone control circuit is engaged. Just leave it IN to eliminate hum. Probably just a quirk of some of the RGR 4’s. Any other owners notice the same thing? My first RGR 4 back in 1980 was hum-free for all its life (20+ years). No.2 bought five years ago has the right channel hum problem with tone circuit OUT. |