WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
I have problem with rgn mesh 2504 and 4004 are little spark up on mesh when switch on. Any idea what is the cause and how to tackle it?are is no problem?
Rgn 2504 i use in preamp 27
Rgn 4004 i use in power 300b
Thanks.