LOPT of Philips 663A - UK Vintage Radio Repair and Restoration Discussion Forum

Jac · 12th May 2024, 1:38 pm

I'm trying to get some information about the LOPT of the Philips 663A; also used in the 383A and similar Philips and Mullard sets.

Many 663A's have been scrapped, or were offered for very low prices, and I would be very grateful if anyone could help me with such a LOPT or even with some info about it.

Such a chassis with LOPT (circled in red) (click for larger photo):

Click image for larger version

Name: 2016-06-27 663A TB chassis ok klein.jpg
Views: 155
Size: 88.9 KB
ID: 297433

The chassis as, unfortunately, it is now:

Click image for larger version

Name: 2024-05-02 663A ok klein no LOPT.jpg
Views: 154
Size: 86.0 KB
ID: 297434

A photo of the LOPT itself:

Click image for larger version

Name: 2016-06-27 663A wanted LOT schuin klein.jpg
Views: 150
Size: 51.9 KB
ID: 297435

Dimensions are about 5,5 cm each side.

All information is welcome.
Thank you in advance!

Jac

12th May 2024, 1:38 pm	#1
Jac Heptode Join Date: Jun 2006 Location: Eindhoven, Netherlands. Posts: 655	LOPT of Philips 663A I'm trying to get some information about the LOPT of the Philips 663A; also used in the 383A and similar Philips and Mullard sets. Many 663A's have been scrapped, or were offered for very low prices, and I would be very grateful if anyone could help me with such a LOPT or even with some info about it. Such a chassis with LOPT (circled in red) (click for larger photo): The chassis as, unfortunately, it is now: A photo of the LOPT itself: Dimensions are about 5,5 cm each side. All information is welcome. Thank you in advance! Jac