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Old 16th Feb 2020, 10:35 am   #157
DMcMahon
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Join Date: Apr 2019
Location: Worthing, West Sussex, UK.
Posts: 6,604
Default Re: Grundig TK 819 Any Useful Info

After finding a suitable sized drive belt for the Take up table, re-tested the tape transport (post cleaning the reel table hubs). Everything basically still works, but as before the spools are still slow to come to a stop and sometimes accelerate initially when stop is pressed.

Forward Play & FFD are worse than before in that they sometimes struggle due to the reel table upper hubs slipping on the lower hubs.

I assume because all the previous decomposed friction rubber material has now been remove during the cleaning, so less friction between upper and lower hubs. Also of course the Take Up reel table solenoid does not work (no wires) so no hard locking of those hubs in FFD.

So would need to experiment with adding some suitable friction material like drive belt etc into the grooves in the upper hubs.

But at this time am not going to spend time doing this as it might be a waste of time if the playback heads turn out to be totally useless.
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