Interesting thread and have poked around for clarification on the 190. Wilde Sau (wild boar) refers to the concept thought up by Hans-Joachim "Hajo" Herrmann, day fighters would be sent up and look for the bombers from the light of flares dropped from light bombers, searchlights set to a wide beam or illuminating lower clouds, or the fires on the ground below. A few Wilde Sau night-fighters were actually fitted with "FuG-217 Neptun" radar, with the transmitting aerials on the aircraft's spine and receiving antennas on the nose and wings. This scheme went no farther than operational trials, possibly because the workload of trying to fly the aircraft and read the radarscope at the same time was simply too high for a single-seat aircraft.
A-8/F-8 series airframes were often used for different armament and equipment testing. Unfortunately, only a small part of the documentation concerning these tests survived, making it impossible to describe in detail all of the modifications and resolve some the contradictory information. In spite of this, we know of the following armament modifications:
1. SG 113 Zellendusche - 3-tube battery based on the MK 103 cannons mounted in the rear fuselage. Firing was made by a photosensor impulse. - SG 117 Zellendusche - 6-tube modification of the previously described battery.
2. Rohrblock 108 - similar construction with 7 tubes based on the elements of the MK 108 cannon, fired by photosensor impulse. Probably, it consisted only of MK 108 cannons barrels with a single cartridge; after firing of the first barrel others were fired automatically by the recoil force of previous barrel. This kind of armament was used for bombers interception and was tested on the Fw 190A-8 (W.Nr. 733713), prototype designation V74.
Anti Tank - Doubled SG 113 A Forstersonde missile launchers were mounted obliquely inside the wings directed downward. Firing performed automatically using Forstersonde magnetic field detection principle, when the plane flew low (30 feet) over a tank. In October 1944, at the research facility FGZ (Forschungsansalt Graf Zeppelin) this device was mounted on the prototype Fw 190 V75 (W.Nr. 582071) and W.Nr. 586586 planes. In December 1944, the system was also mounted on the Fw 190 (W.Nr. 933452). This system was found to have low accuracy, so development was abandoned.
For the anti bomber role aircraft were fitted with,
R1 field conversion - The outboard MG 151/20 cannons were removed and gun pods mounted under each wing with a pair of 20 mm MG 151/20 cannons in each, giving a total weight of fire of six 20 mm and two 7.9 mm guns. This conversion reduced speed by 25 mph and range by 19 miles.
R2 field conversion - Replacement of the R1 20mm gun pods with a 30mm MK 108 cannon under each wing. (not to be confused with the R3 conversion which was a long barrel slow firing 30mm MK 103 cannon for anti tank use).
R6 field conversion - Installation of a pair of WGr. 21 (21 cm) mortar-rocket tubes under the wings.
The best, and seemingly most accurate, 190 site I found is
http://ipmsstockholm.org/magazine/20...g_fw190_01.htm
rotorfossil - could find no mention of 50mm. do you have further info. One thing the Germans certainly did with the 190 was experiment and innovate.