135W / 70W Ultralinear Recap Kits
These amps hit the market in late 1977, and are considerably different from their 100W & 45W predecessors, with different transformers and power filtering requirements. To see which model Twin Reverb, Pro Reverb or Super Reverb you have, look under the speaker output jack in the back. If it reads 135W or 70W, you have an ultralinear model. If it reads 100w or 45w, you have a standard model and will need the standard silverface recap kit.
These kits use high quality F&T caps for the main power filters, bias caps, and Sprague Atoms for the cathode bypass caps in the preamp.
The power filters & bias caps in this kit are all F&T electrolytics. The cathode bypass caps in the preamp are Sprague Atoms. These kits have the 220uf main power filters required for the UL models.