Dynatron GR8 cartidge help - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

wd40addict · 13th Mar 2021, 11:24 am

ST17 fits fine, at least on my example.

ben · 13th Mar 2021, 11:55 am

Some of the later made ST16/7 had a very slight difference in their construction, in that the area of the body where the flag meets the 'tail' is 'flatter'. See pics below. This may explain the 'compatibility' problem especially where clone carts are concerned, any minor difference in the moulding will be apparent.

I will investigate this more fully in due course!

PaulR · 13th Mar 2021, 12:22 pm

I assume that all the ST range started out with the same configuration. I have just been comparing ST12s and 17s on ebay and the 17s are different. On the 12s I have seen the rubber suspension fits into the plastic holder whereas on the 17 it fits over it like a cap. The plastic on the ST12 also looks chunkier.

This is mirrored on the original ST12 I have and the stylus on the Chinese cart which looks like the ST17 on ebay. It could be that the Chinese cart was designed to fit the modern clone replacement stylus.

Anyway I have risked ordering an ST17 because as others have found I think the "78" stylus on the Chinese one is the the same diameter as the "LP" one. Having said that I have been very pleased with the sound quality from the Chinese cartridge.

ben · 13th Mar 2021, 1:35 pm

The ST16/17/20/21 series are totally different in size from the older, larger ST3/4/5/8/9/10/12/14/15/19 series.

PaulR · 13th Mar 2021, 1:41 pm

Thanks Ben, that confirms my feeling. It is also good to know that replacement styli are available for the Chinese carts. That was a concern when I bought them.

wd40addict · 13th Mar 2021, 3:54 pm

Quote:

Originally Posted by Edward Huggins

The BSR ST range of styli are not compatible with these.

ST17 is, see picture!

Edward Huggins · 13th Mar 2021, 6:38 pm

Thanks. I stand corrected. Having fiddled with ST12 and ST14 and not been happy with the adequacy of the fit, it looks like the very last ST versions were better suited.

13th Mar 2021, 11:24 am	#21
wd40addict Octode Join Date: May 2009 Location: Stevenage, Herts. UK. Posts: 1,518	Re: Dynatron GR8 cartidge help ST17 fits fine, at least on my example.

13th Mar 2021, 11:55 am	#22
ben Dekatron Join Date: Aug 2006 Location: Madrid, Spain / Wirral, UK Posts: 7,498	Re: Dynatron GR8 cartidge help Some of the later made ST16/7 had a very slight difference in their construction, in that the area of the body where the flag meets the 'tail' is 'flatter'. See pics below. This may explain the 'compatibility' problem especially where clone carts are concerned, any minor difference in the moulding will be apparent. I will investigate this more fully in due course! Attached Thumbnails __________________ Regards, Ben.

13th Mar 2021, 12:22 pm	#23
PaulR Dekatron Join Date: Oct 2003 Location: Southport Lancashire, UK. Posts: 3,233	Re: Dynatron GR8 cartidge help I assume that all the ST range started out with the same configuration. I have just been comparing ST12s and 17s on ebay and the 17s are different. On the 12s I have seen the rubber suspension fits into the plastic holder whereas on the 17 it fits over it like a cap. The plastic on the ST12 also looks chunkier. This is mirrored on the original ST12 I have and the stylus on the Chinese cart which looks like the ST17 on ebay. It could be that the Chinese cart was designed to fit the modern clone replacement stylus. Anyway I have risked ordering an ST17 because as others have found I think the "78" stylus on the Chinese one is the the same diameter as the "LP" one. Having said that I have been very pleased with the sound quality from the Chinese cartridge. __________________ Paul

13th Mar 2021, 1:35 pm	#24
ben Dekatron Join Date: Aug 2006 Location: Madrid, Spain / Wirral, UK Posts: 7,498	Re: Dynatron GR8 cartidge help The ST16/17/20/21 series are totally different in size from the older, larger ST3/4/5/8/9/10/12/14/15/19 series. __________________ Regards, Ben.

13th Mar 2021, 1:41 pm	#25
PaulR Dekatron Join Date: Oct 2003 Location: Southport Lancashire, UK. Posts: 3,233	Re: Dynatron GR8 cartidge help Thanks Ben, that confirms my feeling. It is also good to know that replacement styli are available for the Chinese carts. That was a concern when I bought them. __________________ Paul

13th Mar 2021, 6:38 pm	#27
Edward Huggins Dekatron Join Date: Sep 2015 Location: Southwold, Suffolk, UK. Posts: 8,328	Re: Dynatron GR8 cartidge help Thanks. I stand corrected. Having fiddled with ST12 and ST14 and not been happy with the adequacy of the fit, it looks like the very last ST versions were better suited. __________________ Edward.