I want one of these...like rillyrilly bad...>>PS520<<

  • Thread starter Thread starter sweetbeats
  • Start date Start date
Status
Not open for further replies.
PM-ed ya

The power supply should not be too hard....

+- 15 are fused at 4 amps each

+ 48 at 2A

+6 at 4 amp and it is shared with the 11VAC

+-18 are fused at 2A

--Ethan

The +- 15 feed the majority of the opamps inthe board with the +-18 feeding the output stages. This being a +4dBm the higher voltage is needed. The balanced out max is speced at +28 dBm (19.5V). I would guess a little more headroom and more isolation. Output does not get fed back into a gain stage through the PS rails.

the total power is speced at 70 watts.

The 11 VAC is novel in that it feeds 2 meter lamps in series.
 
Last edited:
Folks, don't worry about getting scans put up or finding a link.

My M520 includes the original manual.

I have been catching up on this thread and I really appreciate the input.

Most of it is over my head. I will need some hand-holding on this if anybody can spare the time when I get to that point. I'm good with repairing exisiting coarse circuitry or swapping components...fabrication is new territory for me to a relatively grreat degree.
 
Folks, don't worry about getting scans put up or finding a link.

My M520 includes the original manual.

I have been catching up on this thread and I really appreciate the input.

Most of it is over my head. I will need some hand-holding on this if anybody can spare the time when I get to that point. I'm good with repairing exisiting coarse circuitry or swapping components...fabrication is new territory for me to a relatively grreat degree.

Give a holler when you get stuck. I can come across the river (well I work in beaverton).

I printed off a manual for you but the schematic section sucks so perhaps I could borrow yours some time for a quick trip to Kinkos to copy the schematics.

I am envious as that I "think" that I wouuld like to have a M520 some day.

Regards, ethan
 
Status
Not open for further replies.
Back
Top