| Replacement Capacitors | Re-Stuffing the Can Capacitors | Pictures | ||
|---|---|---|---|---|
If you have chassis number 071-D, use the following service supplement for re-capping. Click here.
If you have Rev. N of the 2071 system, replace C83 with a 30 MFD. @ 15V+ electrolytic capacitor
| Original Rating | Quantity | New Replacement | ||
|---|---|---|---|---|
| .1 MFD. @ 150V+ | 3 | Mallory C-MD1-400**, Generic C-TD1-400**, | ||
| .22 MFD. @ 150V+ | 2 | Mallory C-MD22-630**, Generic C-TD22-400** | ||
| 30 MFD. @ 15V+, 30 MFD. @ 30V+ | 4-5 (depending on board revision) | Vishay-BC Components MAL202128339E3 (33 MFD. Replacement), Sprague 30D336M035BB2A (33 MFD. Replacement) |
||
| 300 MFD. @ 15V+ | 2 | Sprague TVA1208.5, | ||
| 15 MFD. @ 15V+ | 3 | Vishay-BC Components MAL202128159E3 | ||
| 10 MFD. @ 6V+ | 3 | Vishay-BC Components MAL202129109E3 | ||
| 2 MFD. @ 20V+ | 4 | Cornell-Dubilier 225TTA050M (2.2 MFD. Replacement) | ||
| 20 MFD. @ 6V+ | 3 | Sprague TVA1305.5, Sprague TE-1090-E3 | ||
| 50 MFD. @ 3V+, 30 MFD. @ 10V+ | 4-5 (depending on board revision) | Sprague 30D476M075DC2A, Vishay-BC Components MAL202138479E3 | ||
| 2500 MFD. @ 35V+ | 1 | EPCOS-TDK B41605A0258M008*, EPCOS-TDK B41690A7258Q001, Sprague TVA1318.3 | ||
| 500 MFD. @ 35V+ | 2 | Panasonic EEU-FP1V511 (510 MFD. Replacement)*, Sprague TVA1227, | ||
The 2071 master station has 2 can capacitors. One 2500 MFD. @ 35V (30 MFD. @ 35V for the 071-D chassis revision), and one 500/500 MFD. @ 35V multi-section can capacitor.
I personally use the method of re-stuffing can capacitors as featured in the Restoration Section.
However, instead of using a piece of heat-shrink tubing to secure the capacitor, I use some Permatex RTV and some electrical tape to secure the top-half of the can to the base.
1: Cut open the can capacitor at the ridge as shown in this video.
2: Once the can is open, clip the leads of the "jelly roll" and throw it away. If it's there, remove the tar-like stuff in the top of the can and the layer of plastic under the tar.
3: Make some small holes in the can base with either a drill & bit or a finishing nail. Set the radial capacitor(s) into the holes and wrap the wire leads around the existing leads.
4: Solder the new leads from the new capacitor(s) to the leads of the old capacitor. I use Chip Quik 63/37 leaded solder.
5: Once you have triple-checked the orientation of the capacitor polarity, put a ring of RTV around the base and press the top back on to the base
6: Once the RTV has cured or has solidified somewhat, wrap a layer of Scotch Super 33+ or any electrical tape around the RTV-metal joint.