Grampian RA3/RA5 doc / cutterhead repair

This is where record cutters raise questions about cutting, and trade wisdom and experiment results. We love Scully, Neumann, Presto, & Rek-O-Kut lathes and Wilcox-Gay Recordios (among others). We are excited by the various modern pro and semi-pro systems, too, in production and development. We use strange, extinct disc-based dictation machines. And other stuff, too.

Moderators: piaptk, tragwag, Steve E., Aussie0zborn

Post Reply
User avatar
pon ko
Posts: 15
Joined: Thu Jun 13, 2019 2:04 pm

Grampian RA3/RA5 doc / cutterhead repair

Post: # 58927Unread post pon ko
Wed Jul 07, 2021 4:07 pm

Greetings to everyonee

I would be grateful if anyone here has and is ready to share manual and/or schematics for Grampian RA3/RA5 mono cutting amps. All I could find for now is an old presentation sheet.

Also, is there anybody in today's world who could be able to reconnect feedback wires ina grampian Type D head? Tried myself. Really hard thing to do without dedicated equipment/

Any help highly appreciated, will give back if able.

Blessings
pidim
You do not have the required permissions to view the files attached to this post.

User avatar
markrob
Posts: 1643
Joined: Wed Nov 28, 2007 1:14 am
Location: Philadelphia Area

Re: Grampian RA3/RA5 doc / cutterhead repair

Post: # 58928Unread post markrob
Wed Jul 07, 2021 9:14 pm

Hi,

Here is a link to post I made several years ago that may be helpful:

https://www.lathetrolls.com/viewtopic.php?f=1&t=5457&p=33240

Mark

User avatar
pon ko
Posts: 15
Joined: Thu Jun 13, 2019 2:04 pm

Re: Grampian RA3/RA5 doc / cutterhead repair

Post: # 58932Unread post pon ko
Fri Jul 09, 2021 6:22 am

Thanks a lot, great work but I've found these and am going into their restoration so I would need help from original documentation.


pidim

User avatar
pon ko
Posts: 15
Joined: Thu Jun 13, 2019 2:04 pm

Re: Grampian RA3/RA5 doc / cutterhead repair

Post: # 59692Unread post pon ko
Wed Nov 03, 2021 4:46 am

found the RA3 missing RA5 !

Post Reply