Ceramic and Crystal cartridge specs.

[wd40addict]

Excellent work!

Does anyone know what the difference between the various BSR stylus types such as ST12/14/15/19 actually is?

Also the list is a bit light on Ronnette, see further attached data from a Finnish website.

The TX88 showed what could be achieved in frequency response and fidelity from a crystal cartridge. Even 'Gramophone' magazine were impressed!

Regards,

Paul

[ben]

Originally Posted by wd40addict

Does anyone know what the difference between the various BSR stylus types such as ST12/14/15/19 actually is? Paul

I was going to add an explanatory bit on the different BSR styli but forgot! There is a chart in the document indicating the characteristics of sonotone 2509/3509 styli types, so a similar BSR chart would probably be a good addition. Will get to it.
To answer your question: ST12 is LP/78, both sapphire. ST14 LP/78, but LP tip is diamond. ST15 dual diamond LP tips. ST19 is single diamond tip (not flipover).

Thank you for the Ronette info. Will add it to the next update.

[david freeman]

Excellent information Ben.

The TC8S had a recommended tracking weight of 5 to 9 gms, usually set to 7 gms in the BSR changers.

Regards
David

[ReelToReel]

Thanks for this Ben, I have saved a copy

Cheers Mark

[RojDW48]

Really useful! Many thanks - Roger

[Nickthedentist]

Following on from post 24, I have an instruction leaflet for the BSR Ful-Fi TC.8SM

Styli: TC8RS (yellow, microgroove), TC8G (green, 78s)
Tracking Weight: 5 to 9g
No output voltage stated.

HTH,
Nick.

[ben]

Just a quick update to say I'm working on a second edition of that chart incorporating data contributions made since the first was uploaded.

I'm still after the following data:
BSR
-SX5M, SX5H: output, tracking force.
-SC7M: output, tracking force.

SONOTONE
-8T: tracking force
-9TA (original): tracking force.

RONETTE:
-TO284 : Stylus reference.

I also have a new section for PHILIPS heads and am after data for the following modules:
GP214, GP215.

[lazythread]

Hi Ben,

I think the Ronette 284 came in 2 versions, the screw held Pfanstiehl ref. 700 (Collaro Studio type) and later ones had the clip-in version, Pfansteihl ref. 702 (Ronette 105 type). I have a later one but it's packed somewhere safe so I can't check for you, sorry.

Looking at a Vernitron leaflet that came with a 9TAHC I bought recently it says the following:

2T: 9 grams
8TA4: 5 grams
9TA: 2-4 grams. All to be loaded with 1-2 megohm


HTH

Regards

[GeoffK]

Hope this is useful.

[ben]

Thanks! Will add to the document in due course.

[lazythread]

Copied from this thread: https://www.vintage-radio.net/forum/...d.php?t=143847

I have a Compat C cartridge, the box and information sheet say "Stereo Compatible Mono Cartridges" and contain the following data:

"Compat X - Medium Output Crystal Cartridge, output 225mv, VTF 3-5g, load 1MΩ 100pF
Compat X2 - High Output Crystal Cartridge, output 525mv, VTF 6-9g, load 1MΩ 100pF
Compat C - Medium Output Ceramic Cartridge, output 170mv, VTF 5-6g, load 1MΩ 100pF

Electronic Reproducers (Components) Ltd. Hedley Road, St. Albans, Herts."

These cartridges were also boxed and sold by Goldring.

[Restoration73]

Addendum to #32 ; the production of ERC cartridges was taken over by Musonic who
seem to make them in batches dependant on demand. All the specs you may find useful
are on the website. The 2SB is an excellent stereo ceramic cartridge with high compliance
and channel separation (I have no commercial link);
https://www.musonic.co.uk/index.php?...ducts_id=18711

[ssnjimb]

Hello

Is there a nude eliptical stylus for a bsr sc12m/h

James

[Restoration73]

Hi James

As far as I can remember, the only ceramic cartridge that had an elliptical stylus option was the Decca Deram.

Tony

[Chris55000]

Hi!

Whilst I have plentiful knowledge of circuits, I've just realised one small piece of knowledge is missing from my knowledge store!

The High Output Crystal and ceramic cartridges are mostly quoted as 600-1200 mV per cm/s, can someone enlighten me:-

Is this linear or circumferential velocity, and what would the recorded velocity of a typical 45 rpm 1960s single, equated in cm/s be?

This would enable me to estimate the p-p voltage at the cartridge O/P terminals, for use with valved or transistorised amplifiers!

When I last repaired record-players I'd no oscilloscopes to hand in those days!

Chris Williams

[John10b]

Chris i asked this question a while ago, if you look under Components and Circuits, Cartridge Specification, you should find your answer.
I found it very interesting.
Cheers
John

[John10b]

I should have said Page 7
Cheers
John

[Chris55000]

Hi!

Thanks John!

I knew I can't have been the only one puzzled by this!

Chris Williams

[Restoration73]

Addendum to #35 ; I had forgotten that Goldring produced an elliptical stylus for the
CS90 cartridge, which was denoted as CS91E.

[Alf Fisher]

Hi, does anybody have the spec particularly the output of a Garrard GCS10 cartridge please.
Cheers, Alf