AVForums South Africa

Audio/Video Hardware => Reel to Reel & Cassette Tapes => Topic started by: MusicMan_ZA on July 13, 2019, 04:12:42 PM

Title: What's it called?
Post by: MusicMan_ZA on July 13, 2019, 04:12:42 PM
I removed these today from an old Pioneer tape deck. One came off fine; the other hit me in the forehead and then bounced into the stratosphere... gone.
So now I need to start looking for a replacement, but I don't even know what it is called!
Can anyone please help with the correct term for these little black caps that secure the supply and take-up pulleys on their shafts?
And/or know where I can buy one (or a few) from?

Thanks,
Johan

(https://scontent.fcpt4-1.fna.fbcdn.net/v/t1.0-9/66619450_1326919130792406_8802762681216925696_n.jpg?_nc_cat=105&_nc_oc=AQlqAE02yxq-AhTR6A1-MLvaT-h5FWLF0Zdlm9kM9704LvAuZnzaXGRl5s0MDIqBipM&_nc_ht=scontent.fcpt4-1.fna&oh=4719c1330f6a84b414652bfa22817ff4&oe=5DB91B12)



Title: Re: What's it called?
Post by: chrisc on July 13, 2019, 05:40:22 PM
Revox call them spindle post clamps. 

At a pinch (no pun) you can use a furniture foot/door stop, suitably drilled out so its a positive fit on the shaft

There is a shop near me in Wynberg that has them in black, red and white.  They cost about R1,00 each

(https://i.imgur.com/9q4z0I4.jpg)
Title: Re: What's it called?
Post by: MusicMan_ZA on July 13, 2019, 07:16:01 PM
Thanks Chris, but this is not a reel-to-reel deck. It is a standard cassette tape deck, and these "nubs" are about 3mm diameter and 3mm deep.
Title: Re: What's it called?
Post by: Carnajo on July 13, 2019, 09:35:27 PM
Sorry, not a helpful comment, but were you outside or something? Surely it must be lying around somewhere?
Title: Re: What's it called?
Post by: Steerpike on July 13, 2019, 10:14:29 PM
i have used a piece of pvc insulation stripped off an ordinary piece of multistrand copper wire - pvc piece about 2 or 3mm long.
Not too pretty but it worked.
Title: Re: What's it called?
Post by: chrisc on July 14, 2019, 09:14:46 AM
What about a small rubber grommet?

You get various sizes for inserting in the wall of an enclosure, to protect the cable from abraiding.  In my drawer I have several, the smallest is 2.5mm.   They are also called "bushes" and "cable entry sleeves"

Then there is a company called Multiplex Rubber Rollers in Ottery who manufacture things like that.  They are customers of mine and I have seen them making tiny O-rings for a University project

(https://i.imgur.com/3m7QFMJ.jpg)

Title: Re: What's it called?
Post by: MusicMan_ZA on July 14, 2019, 04:38:30 PM
i have used a piece of pvc insulation stripped off an ordinary piece of multistrand copper wire - pvc piece about 2 or 3mm long.
Not too pretty but it worked.

Thanks - yes, I have done this in the past.
I does not look pretty, but mostly works.  :thumbs:
Title: Re: What's it called?
Post by: MusicMan_ZA on July 14, 2019, 04:41:59 PM
What about a small rubber grommet?
You get various sizes for inserting in the wall of an enclosure, to protect the cable from abraiding.  In my drawer I have several, the smallest is 2.5mm.   

Thanks Chris - but these spindle shafts are about 1mm, if not less.

Then there is a company called Multiplex Rubber Rollers in Ottery who manufacture things like that. 
(https://i.imgur.com/3m7QFMJ.jpg)

Thanks, I will file this away - I might need them for a few other items!  :thumbs:
Title: Re: What's it called?
Post by: MusicMan_ZA on July 14, 2019, 04:44:35 PM
Sorry, not a helpful comment, but were you outside or something? Surely it must be lying around somewhere?

After almost 2 hours on my knees on the cold cement looking for it, and giving up, I did not really enjoy this comment.
But then, this morning, I went out again, and spotted it about 3m away within 5 minutes!
So, thanks for making me look again.  :2thumbs: :thumbs:
Title: Re: What's it called?
Post by: MusicMan_ZA on July 14, 2019, 04:46:08 PM
I would still really like to know what this part is called - I'd like to google it and see if there are any for sale on Ebay!  :teach:
Title: Re: What's it called?
Post by: dieOrg on July 14, 2019, 05:58:16 PM
Sprocket? Look at the read more.

https://electronics.howstuffworks.com/gadgets/audio-music/cassette2.htm

Sent from my SM-A530F using Tapatalk
Title: Re: What's it called?
Post by: MusicMan_ZA on July 14, 2019, 06:53:44 PM
Sprocket?

Close, but no. The sprockets are the "feed pulley" and the "take-up pulley". These little knobbies keep the sprocket seated in place
on a thin shaft/spindle, and almost act like tiny circlips (they might actually have a type of circlip inside, as there is a groove in the thin shaft they "clamp" onto). But we are getting closer!
Title: Re: What's it called?
Post by: Carnajo on July 14, 2019, 08:25:43 PM
After almost 2 hours on my knees on the cold cement looking for it, and giving up, I did not really enjoy this comment.
But then, this morning, I went out again, and spotted it about 3m away within 5 minutes!
So, thanks for making me look again.  :2thumbs: :thumbs:

Um, sorry, and uh, you're welcome :)

I didn't mean to come across negatively, I was just wondering that surely it must be somewhere or perhaps there was some funny story like it went out a window and down a drain (the sort of thing that would happen to me actually!)