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TonyDuell · 28th Jul 2017, 7:58 pm

Looking at the circuit diagrams (again), I don't think it would need any more sensors or mechancial parts. There are already end-of-tape (foil detection) sensors on the deck, and that's all that's needed.

But I can't see any way to make the reset/autoreverse module act as a toggle flip-flop. So my guess is that the kit was (at least) a replacement for that plug-in board. I could probably work out something to do it, but most likely it would not be the offical way.

Other than the (bare) PCB, I would think the electronic components (on said PCB) were all standard (there's nothing custom in the control circuity at all).

28th Jul 2017, 7:58 pm	#6
TonyDuell Dekatron Join Date: Jun 2015 Location: Biggin Hill, London, UK. Posts: 5,219	Re: Philips N4450 Looking at the circuit diagrams (again), I don't think it would need any more sensors or mechancial parts. There are already end-of-tape (foil detection) sensors on the deck, and that's all that's needed. But I can't see any way to make the reset/autoreverse module act as a toggle flip-flop. So my guess is that the kit was (at least) a replacement for that plug-in board. I could probably work out something to do it, but most likely it would not be the offical way. Other than the (bare) PCB, I would think the electronic components (on said PCB) were all standard (there's nothing custom in the control circuity at all).