Hyagain 488 Bi linear

[989]

hello all i aquired a hygain 488 amp tubes are good in it both test at 95% when i turn it on in standby or xmit there is a constamnt buzzing sound is this normal? not real fimiliar with this amp it is a constant buzz

 

[Big Dummy 123]

Hi that is normal it the osalating tradistors on the back Ben