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Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc.

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Old 25th Oct 2019, 7:30 pm   #1
vintage_8bit
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Default Philips 4307

2 questions gents. See attached photos.

Can someone explain how the felt clutches and the 4 clutch rubbers, which are handed, work?
My understanding so far is, that the spool retainers can be directly driven for rewinding, and I understand that tape tension has to be maintained despite changing speeds due to the amount of tape on a reel. I can also see how the brake works.

As my clutch rubbers have dissolved, I'm trying to think how I can make replacements. This might be easier when the question above is answered.

I have a new set of drive belts to fit, after I've removed the goo that used to be the 4 drive belts.
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Old 26th Oct 2019, 7:05 pm   #2
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Default Re: Philips 4307

I think you need some of these?

I was having a clearout and found some new ones in a packet. These are not black and are possibly made of different material. They ARE genuine Philips (ex stock from a workshop clearout. The pack is unopened and they seem to be in excellent condition.

If these are what you want they are yours for cost of postage. Let me have your details by PM.
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Old 26th Oct 2019, 7:27 pm   #3
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Default Re: Philips 4307

Thank you so much. I will certainly take up your offer. I didn't think that there would be any new ones around now. P.M. On its way.
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Old 28th Oct 2019, 3:41 pm   #4
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Default Re: Philips 4307

You'll need some Swarfega, baby wipes and old clothes! Amazed you've found some of those rubber fingers - lucky.
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Old 29th Oct 2019, 1:29 pm   #5
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Default Re: Philips 4307

Yes I do feel lucky, maybe I should try the lottery this week.
Thank you Richard. As you can see from the attached images they fit perfectly. Philips made a good decision to change the material to silicon? I'm not putting the new clutch rubbers or drive belts anywhere near the chassis until all remains of the goo are removed. Colin
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Old 29th Oct 2019, 4:49 pm   #6
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Default Re: Philips 4307

What a lucky find, and a top forum.

Perhaps you should take some measurements of them in case the future requires more that have to be somewhat...'handcrafted'.
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Old 29th Oct 2019, 9:49 pm   #7
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Glad they've found a home. I have no idea how long they have been in the box I found.
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Old 29th Oct 2019, 11:02 pm   #8
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Good idea about measurements for future "Handcrafting" see attached.
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Old 11th Nov 2019, 11:51 pm   #9
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Default Re: Philips 4307

Gents. The tape reorder is now complete and working well. It's got some work to do as there are around 35 tapes to go through. The only other trouble, apart from the rotten rubber was fixed with switch cleaner. The brake for the left hand spool carrier, which is only used during "pause" was made from the rubbery plug from an I C tube. Think that idea came from this forum?

Thanks again to Sideband for the donated clutch rubbers, Colin.
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Old 13th Nov 2019, 3:52 pm   #10
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Default Re: Philips 4307

Well done!

That CRT wedge thing idea was probably mine ;-) I still have a Pye I did this to back in the '90s and rubber's still fine.

I also used to use the rubber bungs from old N1500 video cassette boxes (that kept the spools slackening).
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Old 13th Nov 2019, 6:47 pm   #11
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It's quite satisfying when something scrap is put to a different use, and it looks like it was made for the job....
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