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Old 31st Aug 2019, 3:56 pm   #21
Techman
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Default Re: HMV Record deck problems

That's very interesting regarding Garrard decks being made at the BSR works, Sharon.
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Old 31st Aug 2019, 3:58 pm   #22
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Default Re: HMV Record deck problems

I would never have believed that untill someone told me

Something else also proving difficult to find is a Garrard RC1
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Old 31st Aug 2019, 4:00 pm   #23
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Default Re: HMV Record deck problems

Yes I do like Garrards but I don't want to let the HMV Beat me
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Old 31st Aug 2019, 4:02 pm   #24
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Default Re: HMV Record deck problems

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Originally Posted by Newgirl2013 View Post
Something else also proving difficult to find is a Garrard RC1
Wasn't that the one that supposedly was made for the American market but the consignment being shipped during the war was lost at sea and only one prototype remains? They were a work of art!
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Old 31st Aug 2019, 4:45 pm   #25
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Default Re: HMV Record deck problems

I don't think so
I've had one a long time ago
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Old 31st Aug 2019, 7:32 pm   #26
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Default Re: HMV Record deck problems

Another autochanger that I like is the Collaro Conquest, just watching them work is a delight in itself.
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Old 1st Sep 2019, 9:39 am   #27
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Default Re: HMV Record deck problems

I have a Collaro Conquest, but I collect 78RPM only decks such as the Collaro RC500
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Old 21st Jan 2020, 7:38 pm   #28
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Default Re: HMV Record deck problems

I'm working on an HMV 1604 radiogram and found a later rim drive deck (45000AG) in better condition that the original one (45000AS) which has the Hysteresis motor and gearbox.

But - not sure what the value shown for the motor capacitors is on the service sheet - see photo attached. Is it 0.6uF?

Bryan
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Old 22nd Jan 2020, 3:16 pm   #29
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I've now got the motor out and am beginning to dismantle it. The good news is that all 4 coils are intact. Although the two capacitors referred to above are reading just over 1uF, I'm not sure that I trust them, so will replace them (as I did with the original deck). Are they supposed to be 0.6uF??

Not yet sure how the rim drive works - what keeps the pressure on the gimbled motor so that the rubber bush on the drive shaft presses adequately against the inner rim of the turntable?

And - why is there no input transformer on the later deck?? Was the cartridge different??

Some photos attached..

Bryan
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Old 22nd Jan 2020, 3:18 pm   #30
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Default Re: HMV Record deck problems

A couple more photos!!
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Old 14th Feb 2020, 12:05 pm   #31
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Default Re: HMV Record deck problems

Well I have worked on another EMI Autochanger
Having finshed I'm delighted to say it works perfectly
Is this an older model than the deck I am having problems with?
If so it's ten times better
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Old 12th Mar 2020, 2:01 pm   #32
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Default Re: HMV Record deck problems

I have just had someone in Norwich, Norwich Restore, recommended to me
I'm going to send him the HMV Record deck to him to see if he can sort it
I have heard very good reports about him
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Old 12th Mar 2020, 3:47 pm   #33
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Default Re: HMV Record deck problems

BSR was an incredibly high tech company. I think their first record deck was the original Monarch of 1953. They produced some very fine 78 rpm recording equipment and workshop diagnostic test gear and go back a long way.

I never had a single problem with them and serviced all their models in record players and radiograms. Incredibly reliable and I never experienced any record wear with the mechanism after many hundreds of playings. They were employed by many leading manufacturers. Hats off to BSR. Birmingham Sound Reproducers. RIP. [The plastic horrors of the 1970's were nasty, produced due to cost cutting mainly demanded by the discount warehouses]

The EMI deck being EMI is an odd one especially looking like something out of a hospital. It took me a very long time to cut all those grooves in the auto drive gear. That was a good while back and I must admit it is still working well. The pick up fitted in the 1902 is only 25ohms and two pick up transformers are fitted in series [original EMI]

Just to finish, another very reliable autochanger but not often uncounted is the PLESSEY unit from around 1955. Extremely simple and as solid as a rock! John.

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Old 12th Mar 2020, 4:38 pm   #34
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Default Re: HMV Record deck problems

Something that really surprised me was I heard a lot of the top of the range Garrard decks were made in the BSR factory
Yes I have to admit I never had any problems with BSR Decks
The first one I bought was a UA8 followed by UA14
Just out of interest, you wouldn't like to sell me your HMV/EMI Autochanger would you, I really would like one of these that works
Just a hope
Sharon
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Old 12th Mar 2020, 4:56 pm   #35
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Default Re: HMV Record deck problems

Two of the very best domestic autochangers ever made. Not for Hi-Fi magnetic heads of course but no changer ever was.
I can't part with it Sharon. It's not mine! Hope you get it sorted. John.
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Old 12th Mar 2020, 6:25 pm   #36
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Default Re: HMV Record deck problems

Hi John
No problem
Thanks very much
Sharon
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Old 15th Mar 2020, 3:34 pm   #37
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Quote:
Originally Posted by brymac View Post
I'm working on an HMV 1604 radiogram and found a later rim drive deck (45000AG) in better condition that the original one (45000AS) which has the Hysteresis motor and gearbox.

But - not sure what the value shown for the motor capacitors is on the service sheet - see photo attached. Is it 0.6uF?

Bryan
It certainly says .6 on the circuit and uF would be the only logical unit!

If the capacitors measure about 1uF on a basic capacitance meter and a resistance check at working voltage shows them to be fairly leaky, then the indicated capacitance will be on the high side. I'd try fitting 0.47uF with some 0.22uF in parallel and see whether function is OK.

Worst case scenario would be to overheat windings if current is too high but this won't be instant and temp rise can be monitored in case it gets excessive.
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Old 30th Mar 2020, 1:32 pm   #38
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Default Re: HMV Record deck problems

Hi everyone
Well my HMV/EMI Autochanger has been dispatched to Norwich to see if Norwich-Restore can work miracles on it
Norwich-Restore has nearly completed the restoration on the HMV Autochanger
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Old 30th Mar 2020, 2:45 pm   #39
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Default Re: HMV Record deck problems

You don't half set yourself some hard tasks don't you?
I know the firm (quite local to me in Norwich) and it will interesting to see how they fare with this. I look forward to your update!!
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Old 30th Mar 2020, 3:30 pm   #40
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Default Re: HMV Record deck problems

Quote:
Originally Posted by Techman View Post
Quote:
Originally Posted by Newgirl2013 View Post
Something else also proving difficult to find is a Garrard RC1
Wasn't that the one that supposedly was made for the American market but the consignment being shipped during the war was lost at sea and only one prototype remains? They were a work of art!
No, that was the RC-100 both-sides-play model.

https://www.youtube.com/watch?v=HfI21OD4gcs
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