Tektronix 475 PFP Capacitors

[Saberwind]

Picked up a Tektronix 475 (high serial) at the local ham fest. Powers on, no trace or dot.
Picked up the service manual, ran through low voltage system checking TP voltages and resistances on the A9 board against the tables. Voltages seem fine. Resistances mostly fine, except the -15 power shows a very high Ohm reading and the related C1472 capacitor's resistance readings aren't showing similar behavior to its neighbors.

C1472 is 290-0583-00, 3000uF & 35vDC. Appears to be this guy:
https://www.qservice.tv/vpasp/shopexd.asp?id=9332&bc=no

I'm not familiar with these PFP type electrolytics.
Am I looking at 4 pins that would need to be desoldered?
Can't seem to find exact replacement available right now. Any suggestions for alternative part?



More details:
vDC testpoint readings
+50v = 50.06
+15 = 15.01
-15 = -15.01
+5 = 4.987
-8 = -7.96
+110 = 111.2
+105/+160 = 141.7
+50 UNREG = 68.4
C1452 = 9.19
C1462 = 13.02
C1472 = 24.52
U1454 pin 8 = 23.73
Pin 3 = 15.00
Pin 1 = 16.92
Pin 5 = 4.986
Pin 6 = 4.986
Pin 7 = 6.52
Pin 2 = 15.01
Pin 4 = GND
.... Need to double check U1464 pins still.
VR1418 = 24.83

Ohm testpoint readings, + on component, - on component
+50v = 2.740k, 2.714k
+15 = 65.5, 65.2
-15 = 41.08k, 67.4k  <-- C1472 is related
+5 = 44.5, 44.5
-8 = 33.6, 33.3  <-- Need to double check
+110 = 32.90k, 32.15k
+105/+160 = 35.59k, 34.46k
+50 UNREG = 47.60k (69.20k), 38.00k
C1452 = 8M  <--  +5 rail
C1462 = 0  <--  -8 rail. Second test showed value.
C1472 = 0  <--  -15 rail

[Bruce1956]

Hi Saberwind,

I had a 475 with a similar problem in the C1472.  I'm not at home right now, or I'd give you the replacement capacitors I used (I changed out all of the big capacitors in that section), but I'm not at home to check.  I got tons of great information from the knowledgeable, helpful, and friendly folks at TekScopes@groups.io, and I highly recommend you search there. 

There are also some excellent adapters available at https://www.ebay.com/itm/275258776339?hash=item4016b39b13:g:vwsAAOSwMxRgeyzu from seller cuog.  These little PC boards make the job of upgrading capacitors much easier, and they are made specifically for the 475.

Good luck with your new project!