SVT-CL - Ticking

[nevetslab]

Please begin a new thread and be a bit more specific with the problem you're having. BTW, Pin 1 of the 6550 power tubes are NOT connected to any hex spacers, on the power tube PCB. This 'thread' was involved with a 'ticking' sound from an SVT.

[Joss]

I only had four photos of the SVT-CL power tube PCB, and those being close-ups of the tube sockets to show the solder fractures in my records. I didn't see Pin 1 being connected to the hex spacer as I see on the SVT-VR PCB assy. I don't recall seeing any attempt on the SVT-CL chassis nor power tube cover plate for insuring ground continuity.

My post was for info purposes about the 6550 pin 1 being connected or not to chassis via hex spacers in CL vs VR models. I'm not talking about any problem, just confirming ( if any doubt ) that pin 1 is not connected in CLassic model

[Enzo]

Hi Joss, I am old and probably confused. I am unclear on your meaning. By connected via hex spacer, are you telling us pin 1 is not grounded, and a hex spacer is what connects ground on the board to the chassis? Do you expect pin 1 to be grounded?

Where do the pin 1 traces on the board go?

[Joss]

Hi Enzo. The hex spacers are the mounting hardware between pcb and octal sockets. They are connected to pin 1 of power tubes in VR model and chassis if all the stuff is properly mounted. In the CL model the pin 1 of power tubes is not connected to anywhere ( no trace there ). My post was just to make 100℅ clear what i'm saying about pin 1 on CL model, but my english seems to sucks more than i thought. Sorry guys ..