02-06-2020, 04:02 PM
There's a couple of those things in the shop. Now that I have some limited freedom I'll go there tomorrow and take a look at them. I kinda remember it wasn't a FET but nothing more than a general purpose video transistor of the BF458 type. A firm called LEDCO made the ones I used. The other trick to replace the PL802 was to cut off a certain pin of an EF184 frame grid pentode. Not a long lasting solution but it got the set going for the customer. LEDCO made a complete all transistor module to replace the CDA board fitted in the Pye CT70/1 and 691/3/7 hybrid CTVs.
From the Radiomuseum: https://www.radiomuseum.org/tubes/tube_pl802t.html
Geordie McBoyne.
From the Radiomuseum: https://www.radiomuseum.org/tubes/tube_pl802t.html
Geordie McBoyne.
