Re: SX-28A Hum
开云体育Tom I’m glad I have company on that. Because the switch makes the difference and is before the 6V6s, I tend to think it is up there. Perhaps put a sizable cap on each grid to see if the switch affects the hum. Do you have a scope? Nasty little problems keep us busy on the forum. ? From: [email protected] [mailto:[email protected]] On Behalf Of thoyer via groups.io
Sent: Saturday, February 15, 2025 5:34 PM To: [email protected] Subject: Re: [HallicraftersRadios] SX-28A Hum ? “When it comes to the switch area, that schematic is spinning my head” ? Glad it is not just me…… ? ? I have not had time to get back to this, maybe tonight. ? I believe it is in the 6V6 area because when I pull the 6SA7 the symptom remains. Maybe the choke has some leakage to ground? I was going to pull it last night and check it on my Sencore inductance tester. Got side tracked and didn’t get there. I’ll try tonight. ? Tom W3TA
-- don??? va3drl |
don Root