New Posts New Posts RSS Feed - Help needed: Configuring 78rpm cartridge
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Welcome to the Graham Slee Audio Products Owners Forum

 

Open to all owners plus those contemplating the purchase of a Graham Slee HiFi System Components audio product and wishing to use this forum's loaner program: join here (Rules on posting can be found here)

This website along with trade marks Graham Slee and HiFi System Components are owned by Cadman Enterprises Ltd


Help needed: Configuring 78rpm cartridge

 Post Reply Post Reply Page  <12
Author
shashirao View Drop Down
Senior Member
Senior Member
Avatar

Joined: 04 Apr 2015
Location: Minneapolis
Status: Offline
Points: 156
Post Options Post Options   Thanks (0) Thanks(0)   Quote shashirao Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jun 2017 at 12:12am
Thanks Chris....perhaps I need to temper my expectations...after all these are well worn shellac records from the 40s, 50s and early 60s :) But coming out of a 6 month LP archival work with Accession/Elevator...I am expecting the impossible. 

As I mentioned the sound is absolutely amazing...what remains is the noise of a well worn shellac...these are localized as mostly crackle. I will look into software based cleaning...VinylStudio promises to be gentle and not erase off complete sound frequencies :) 

Cheers
Shashi
Back to Top
tg [RIP] View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 19 Jan 2008
Location: Sydney
Status: Offline
Points: 1866
Post Options Post Options   Thanks (0) Thanks(0)   Quote tg [RIP] Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jun 2017 at 5:28am
Shashi,
IIRC the 2M mono is actually a trick wired stereo generator - I might suggest trying an AT-Mono3/SP as a relatively inexpensive true mono cartridge with a 78 stylus.  The Mono3/LP is a smaller radius tip for microgroove records.
If that makes a difference then there are Miyajima cartridges tipped for 78 shellac records or the Ortofon CG (G shell SPU shape).
The use of a stereo generator may well be exacerbating the groove noise.
For restoration software try the free to try offerings from B. Davies at http://www.clickrepair.net/



Edited by tg - 07 Jun 2017 at 5:32am
Tony G
Back to Top
shashirao View Drop Down
Senior Member
Senior Member
Avatar

Joined: 04 Apr 2015
Location: Minneapolis
Status: Offline
Points: 156
Post Options Post Options   Thanks (0) Thanks(0)   Quote shashirao Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jun 2017 at 5:38am
Tony,

Thanks - that makes sense....Ortofon has the following to say about their 2M 78:
2M 78 uses a strapped output to deliver the same output signal from both sets of pole pins. This effectively eliminates the need for mono-specific equipment, making it possible to enjoy true mono reproduction on any stereo playback system. 

So it does seem like a stereo generator with strapped output. Surprisingly I found Ortofon Cadenza a fine mono cartridge with lower noise than Miyajima Zero.

And yes - I have been eyeing the 78 version of Miyajima Zero...I have been offered a discount for being a frequent customer...however the cost is still something I need to think twice about. 

I will look up the AT-Mono3/SP option for the meanwhile inexpensive upgrade.

Thanks for the suggestions
Shashi
Back to Top
 Post Reply Post Reply Page  <12
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.156 seconds.