Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Noise Suppressor

1. Disconnect coupler of noise suppressor.
2. Using ohmmeter, check to be sure that condensers are not conductive and resistor has resistance of about 2.2 kohms.
3. If check result is not satisfactory, replace noise suppressor.