VW Judson Type 1 for 30/36hp engines pre Aug 1960- this is the original Judson instructions issued with the VW Model supercharger kit.
VW Judson Type 2 for 34/40hp engines after Aug 1960- this is a transcript of the original Judson instructions issued with the Type II supercharger kit.
Model Judson VW-24  later model with idler pulley- this is a transcript of the original Judson instructions issued with the Type VW-24 supercharger kit for engines including 1970 models.
Fitting a Belt Tensioner- This is an extremely useful add-on for VW Type 1 and early VW Type 2 Superchargers.
Einbau - anleitung des Judson Supercharger. Leider kann der Redakteur bei Erkundigungen nur auf englisch antworten.
Judsonのインストール
Fitting  VW Judson Type II/Type 24  to a 1600 Dual Port Engine By Richie Webb - A step by step guide to Richie's Installation.
Austin Healey SP Model. Updated Judson fitting instructions for the SP Model. Our grateful thanks to member Mike Youles for providing them.
Corvair CO Model. Judson fitting instructions for the CO Model. Our grateful thanks to member Marcus Miller for providing them.
Flathead Ford Model Installation instructions for the Judson M-178 Model, from the March '55 issue of "Motor Life" 
Mercedes 190 Model. Judson fitting instructions for the 190 Model with additional Operational Data, Service Data and Parts list. Many thanks to Register member Lorenzo Fortuna for kindly supplying these rare instructions.
MG-A Model. Judson fitting instructions for the MG-A Model with additional Operational Data, Service Data and Parts list. Our grateful thanks to Swiss member Dominic Clancy for providing them.
Renault RD Model. Judson fitting instructions for the RD Model including a Service Data sheet. Our grateful thanks to members Ken Gladyszewski & George Folchi for supplying these instructions.
Triumph TR Model.  Judson fitting instructions for the TR range including TR3 & TR4. Our grateful thanks to member Murray Hopkins for supplying these instructions.
Volvo Model. Judson fitting instructions for the Volvo Models 122S & PV544. Our grateful thanks to Gary Cox for supplying these instructions.
Marvel Inverse Oiler- this is a transcript of the original instructions issued with the oiler used in conjunction with all Judson Superchargers. 
Vintage Marvel Inverse Oiler - This is the style of oiler that preceded the 1950s version that most Judson users are familiar with. Because of the long supply line needed these are not suitable for rear engined cars.
Judson Karmann Ghia Air Scoop - Fitting template for air scoop modification to Karmann Ghia deck lid.  
Judson Boost Gauge. Installation and running instructions.
Judson Electronic Magneto (coil) - Installation instructions for negative and positive earthed units. Note that the same unit will operate on both 6 volt and 12 volt cars.
Judson See/Dee Electronic Ignition - Installation instructions.
Judson Cycle-Tron Motorcycle Magneto (coil) - Installation instructions for the negative earthed unit. Note that the same unit will operate on both 6 volt and 12 volt motorcycles.
Fram By-pass Oil Filter - Fitting Instructions and picture illustrations of fixtures for a 36hp engine. Also a link to supplier of Filter oil lines.