I desoldered most of the connections that go from the switch to the input board. There are also a handful of connections that run to the phono board PC-6. I just snipped those off, since I'll be removing that board and replacing it.
There are two nuts that hold the switch in place - one on the outside of the front panel as we saw previously, and one right on the front of the chassis.
I'm so strong that I can just loosen the nut by hand! (Kidding). It took the 1/2 inch wrench to loosen it but then I can remove it by hand.
Here we have the whole selector switch removed from the preamp. Good thing I didn't try to unsolder everything from the switch wafers...I'd still be going at it.
I think as an experiment I may put the switch up for sale on e*a* and see if anyone takes it. If you wanted to be totally original, you *could* clean it up and reuse it.
Don't know if I mentioned the mods I did before - mainly put Orange Drop caps on the PC boards. Those I will scavenge. I also put a sprinking of Riken Ohm resistors on there too...and I'll save them as well.
Here's the semi-barren PAS chassis. Both PC boards are removed, the selector switch is gone, as is the Wacky Mod.
Here's what remains to be done:
- Clean up the input board.
- Clean up the pots. I am not going to use the tone controls (bypassing them) so I want to take off most of the unnecessary wiring and the caps mounted to the pots.
- Add a sprinking of different components to the new PC boards. I want to replace a couple of the Illinois Capacitors that came on the new boards with Orange Drops (716Ps), and I want to switch out a couple of the signal resistors with the old carbon comp ones. I know, call me crazy. I also have a Big Secret Plan for replacing the output caps on each board. Bwahahaha!
- Take off the old filament rectifier and filter caps.
- Install the new SDS board.
- Install the new PC boards.
- Install the new selector switch.
- Install the new Alps volume pot.
- Wire the whole enchilada.
Sounds like quite a bit, but it should go quickly.
Impressive. You have an amazing eye for detail. A question though: When you 'Wire the whole enchilada' are you going to re-stuff it with the original beef and cheese mixture and use a vintage tortilla to wrap it? I understand these will leak less.
ReplyDelete