Hacker RP77, tuning drivecord path. - UK Vintage Radio Repair and Restoration Discussion Forum

ouipete · 4th Jan 2010, 11:17 pm

Good evening all,

I own a Hacker Sovereign RP77 that had a loose tuning knob. On opening the Hacker I discovered that the retaining nut and washer was laying at the bottom of the radio. I have now screwed back the tuning knob, however the tuning cord goes through a few wheels / pulleys etc and I have no idea where to start putting this back together.

Does anybody know or had experience putting this back together or could advise a rough cost for repair? Thank you.

Regards,
Peter.

Paul_RK · 5th Jan 2010, 3:46 am

Hello Peter,

Here's a scan of the tuning drive page of the RP77MB/RPC1 manual. Not sure whether it will be clear enough to use, and the original isn't great: if you have trouble send me your email address in a personal message and I'll send on a larger file. There are a couple of sets of photos of the tuning drive arrangements of related models, RP79 and SP80, available at the Hacker group, http://groups.yahoo.com/group/hackerradiogroup/ , which might prove helpful too - I've not done that yet for the RP77 but may get around to it.

Regards,
Paul

Ian E G7OLT · 6th Jan 2010, 10:35 am

Peter,

Some pictures for you. Taken with the scale pointer at the 88MHz end and the tuning control fully anti-clockwise. Having had to replace the drive cord on an SP80 recently (which is similar) the hardest part I found was getting the number of turns around the step pulleys right. I also made the mistake of winding the cord the wrong way round the tuning drive shaft the first time!

Good luck!

Ian E G7OLT · 6th Jan 2010, 10:36 am

Two more for you:-

ouipete · 19th Jan 2010, 7:10 pm

Thankyou very much Paul and Ian for your help.Very much appreciated for your time and sorry I have not been around too check my mailbox earlier.I will let you know how I get on. I think with a little patience I will be able to get it back together with the help you have offered.Many Thanks again.Regards. Peter.

4th Jan 2010, 11:17 pm	#1
ouipete Retired Dormant Member Join Date: Jan 2010 Location: Bexley, Kent. Posts: 2	Hacker RP77, tuning drivecord path. Good evening all, I own a Hacker Sovereign RP77 that had a loose tuning knob. On opening the Hacker I discovered that the retaining nut and washer was laying at the bottom of the radio. I have now screwed back the tuning knob, however the tuning cord goes through a few wheels / pulleys etc and I have no idea where to start putting this back together. Does anybody know or had experience putting this back together or could advise a rough cost for repair? Thank you. Regards, Peter. Last edited by Darren-UK; 4th Jan 2010 at 11:39 pm. Reason: FPK and FSB problems fixed.

5th Jan 2010, 3:46 am	#2
Paul_RK Dekatron Join Date: Nov 2003 Location: Fakenham, Norfolk, UK. Posts: 4,259	Re: Hacker RP77, tuning drivecord path. Hello Peter, Here's a scan of the tuning drive page of the RP77MB/RPC1 manual. Not sure whether it will be clear enough to use, and the original isn't great: if you have trouble send me your email address in a personal message and I'll send on a larger file. There are a couple of sets of photos of the tuning drive arrangements of related models, RP79 and SP80, available at the Hacker group, http://groups.yahoo.com/group/hackerradiogroup/ , which might prove helpful too - I've not done that yet for the RP77 but may get around to it. Regards, Paul Attached Thumbnails

6th Jan 2010, 10:35 am	#3
Ian E G7OLT Pentode Join Date: May 2009 Location: Byfield, Northamptonshire UK. Posts: 112	Re: Hacker RP77, tuning drivecord path. Peter, Some pictures for you. Taken with the scale pointer at the 88MHz end and the tuning control fully anti-clockwise. Having had to replace the drive cord on an SP80 recently (which is similar) the hardest part I found was getting the number of turns around the step pulleys right. I also made the mistake of winding the cord the wrong way round the tuning drive shaft the first time! Good luck! Attached Thumbnails

6th Jan 2010, 10:36 am	#4
Ian E G7OLT Pentode Join Date: May 2009 Location: Byfield, Northamptonshire UK. Posts: 112	Re: Hacker RP77, tuning drivecord path. Two more for you:- Attached Thumbnails

19th Jan 2010, 7:10 pm	#5
ouipete Retired Dormant Member Join Date: Jan 2010 Location: Bexley, Kent. Posts: 2	Re: Hacker RP77, tuning drivecord path. Thankyou very much Paul and Ian for your help.Very much appreciated for your time and sorry I have not been around too check my mailbox earlier.I will let you know how I get on. I think with a little patience I will be able to get it back together with the help you have offered.Many Thanks again.Regards. Peter.