UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

barrymagrec · 29th Aug 2019, 10:57 am

The test for the Gaumont Kalee 1740 involved two oscillators and a resistive mixing pad - when I tried this (more than 45 years ago) it gave a 25% lower reading than I expected and was also out of kilter with the inbuilt calibration on a model 564 so I gave up and relied on the 564 readings which also seemed to tie in with the BBC`s 1741.

The Woelke also has the DIN weighting, which will complicate matters of course.

29th Aug 2019, 10:57 am	#7
barrymagrec Octode Join Date: Dec 2017 Location: Morden, Surrey, UK. Posts: 1,557	Re: NTC preset? The test for the Gaumont Kalee 1740 involved two oscillators and a resistive mixing pad - when I tried this (more than 45 years ago) it gave a 25% lower reading than I expected and was also out of kilter with the inbuilt calibration on a model 564 so I gave up and relied on the 564 readings which also seemed to tie in with the BBC`s 1741. The Woelke also has the DIN weighting, which will complicate matters of course.