Pilot SP-210 power supply build photos

[kirk57]

Reviving this thread because I am going to build this supply for my SP210 this winter.

Thanks to Nate's detailed photos, I have assembled this parts list:

1 - 186D24 Hammond transformer
1 - 6K49VG Allied transformer
1- Hammond 155H choke
1 - OA2 tube
1 - 6x4 tube
2 - tube sockets for the above tubes
1 - 200uF 350v electrolytic capacitor (Nate used 2 100's)
1 - 2k wirewound 10W (or higher) resistor
1 - Hammond 1590F chassis
1 - fuse holder
1- 11 pin socket for umbilical cord from SP210
1- IEC chassis mount power jack

Should be a fun project. I've had the SP210 for 38 years and never heard it!
Now just need to figure out how to fit tab A into slot B and fold E to cover F, or something like that.
Duct tape will fix the rest...

 

[Redboy]

Now just need to figure out how to fit tab A into slot B and fold E to cover F, or something like that.
Duct tape will fix the rest...

Hah!

I'll be watching this with interest and I look forward to photos!

 

[mfrench]

best of luck to you on this project.

 

[kirk57]

OK, I got the case patched/drilled/painted and parts mounted:

KVD 210 Power Supply

• kirk57
• Jan 17, 2017

Now comes the easy part: getting it to work.

That IS the easy part, right?

 

[spartanmanor]

Reviving this thread because I am going to build this supply for my SP210 this winter.

Thanks to Nate's detailed photos, I have assembled this parts list:

1 - 186D24 Hammond transformer
1 - 6K49VG Allied transformer
1- Hammond 155H choke
1 - OA2 tube
1 - 6x4 tube
2 - tube sockets for the above tubes
1 - 200uF 350v electrolytic capacitor (Nate used 2 100's)
1 - 2k wirewound 10W (or higher) resistor
1 - Hammond 1590F chassis
1 - fuse holder
1- 11 pin socket for umbilical cord from SP210
1- IEC chassis mount power jack

Should be a fun project. I've had the SP210 for 38 years and never heard it!
Now just need to figure out how to fit tab A into slot B and fold E to cover F, or something like that.
Duct tape will fix the rest...

Thanks for posting the parts list. Best of luck on your project.

 

[Redboy]

38 years?! Hah! I missed that little factoid before...

Yes, you should be home free at this point: wiring it all up should be pretty straightforward now.

It looks great, by the way!

 

[kirk57]

Wiring this up now. This OA2 tube is kind of an odd one...it looks like the tube equivalent of a zener diode?

I've never seen a 'cold cathode' tube before, and I thought the heater connection was missing on the schematic until I looked at the data sheet.

 

[kirk57]

OK, the good news is the power supply seems to work, getting 150 volts out of pin 7 (and BTW that OA2 looks really cool lit up).

The bad news is the preamp seems to not be working! Back to the bench...

 

[Tom_r]

Just wondering if you were able to get your preamp working. I too have an SP-210. I'd like to use it with other amps too so am watching this project with interest.

 

[kirk57]

Hi Tom. The answer is not yet, had a series of events that prevented me from continuing this work. But I'm not done yet!

 

[Tom_r]

Just curious, rather than removing the socket from my amp, I'm wondering what kind of 11 pin socket one should be looking for.

 

[kirk57]

OK, after a (ahem) slight delay, I can report that the power supply does in fact work, and worked correctly when I first built it. The problems with the preamp were due to operator error .

Thanks to Redboy for posting this! Here is the schematic Redboy provided:

210_PS_Nate

• kirk57
• Jan 17, 2017