UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Pamphonic Pam 600 17" 1959 TV

Heatercathodeshort · 21st Sep 2019, 7:12 pm

We have a PAM Polaroid 800 series at the museum. It also appears to have faded over the years. That also gives a cracking picture.
To get the linearity spot on, almost every resistor in the odd frame timebase required changing due to rises in value and of course all the wax caps. Well worth the effort.

For guys not familiar with the PAM Polaroid screen, these receivers must not be confused with the dual standard ITT 'Deep Scene' that just has an almost black sheet of what ITT described as Oraglas over the face of the tube. The PAM is a true Polaroid filter screen. John.

21st Sep 2019, 7:12 pm	#8
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: Pamphonic Pam 600 17" 1959 TV - my first TV restoration We have a PAM Polaroid 800 series at the museum. It also appears to have faded over the years. That also gives a cracking picture. To get the linearity spot on, almost every resistor in the odd frame timebase required changing due to rises in value and of course all the wax caps. Well worth the effort. For guys not familiar with the PAM Polaroid screen, these receivers must not be confused with the dual standard ITT 'Deep Scene' that just has an almost black sheet of what ITT described as Oraglas over the face of the tube. The PAM is a true Polaroid filter screen. John.