Quad ESL Cap mods

Sadly I could not find any photos of the inside showing how I mounted the cap. I remember I took a bunch of them but I could not find them anywhere now. Mine were sold in Sept.
Take a picture of yours and I can guide you on how to easily mount them.

My first Quad Mod was along the lines you suggest, Tsushima1. I simply removed the existing lines from the WBT connectors and insulated the ends. Then I routed new lines (15 AWG silver coated copper) from the connectors to the downstream side of the signal shaping network (cap and resistors). Then I put my caps and resistors in another box with WBT connectors on both sides, et voila! I connected amps to my new box, and the new box to the Quads.

To restore to original condition, one need only remove the new wiring from the WBT's, and re-solder the old, which you have carefully preserved in the black electronics box.

I found that the more film and foil, and the less metallized, the better. Changing to Plitron transformers was better. But, be careful, please. Since you are talking about modification, I assume that you know about the required safety practices. Otherwise, I suggest leaving it to a tech.

i have a photo attached to my Quad listing on my system page that shows my caps mounted - maybe this will give you an idea. Best mod

Hi Tsushima1, if you need some photos of the quad 988/989 mods/info, I can email photos of the mods I installed. I would leave the stock electrolytic cap/resistor in place and clip out the PTC that connects them on the PC board to the wire going to the step-up transformer, then reroute the speaker input wires. You need to wire in a separate bank of film capacitors/input resistor that are ideally mounted in the base (an not on the PC board).

My apologies for the Tardy Reply gents , I have only just returned to this project and thread.

Terry9 and MKsj2 , Thank you kindly for your assistance, I have emailed you both .Likewise Grateful , just off to admire your system.