Conversion Necks

cur · Post by **cur** » Tue Aug 03, 2010 5:54 pm

[quote="truejacqueline"]I also want to know if I can use a 24" scale CV Duo Sonic neck to replace the 22" neck on a 90's Chinese Affinity Duo?
I got the guitar for a 30 rack of Schaefer and have since made it incredibly awesome. The scale is like just barely impractical.

What does the neck measure nut to butt?

cooter · Post by **cooter** » Wed Aug 04, 2010 12:25 am

truejacqueline wrote:I also want to know if I can use a 24" scale CV Duo Sonic neck to replace the 22" neck on a 90's Chinese Affinity Duo?

Is your 90's DuoSonic neck 22" scale or did you mean 22.75" scale?

I've got a CV DuoSonic and a Squier mini strat neck which is 22.75" scale, 20 frets (same as the 90's Chinese Duo if it's 22.75") and it measures out to to be a yes. Some very slight saddle adjustments but it should work.

mongoose69 · Post by **mongoose69** » Wed Aug 04, 2010 12:42 pm

I tried putting my CV Duo neck on my Strat body, and it totally didn't work. When I bolted it on, there was a huge gap between the butt of the neck and the bottom of the pocket, plus the scale was off. When I moved the neck all the way down into the pocket, it was close; but would've required filling and drilling the neck for the bolts (hardly a "hot-swappable" deal).

Is the current Jagmaster neck more readily "swap-able?" (ie- no filling or drilling required)? I'm actively searching for one of those necks to use for a project (PM me!), and really want it to be a "surprise-free" experience!

BTW- Here's (kind of) what a long-scale Mustang would look like (albeit with a JM pu and trem/bridge setup):

My JAZZSTANG by ANDREW GUITARS

truejacqueline · Post by **truejacqueline** » Wed Aug 04, 2010 8:48 pm

I should have been more specific. I'm pretty sure it's 22.75" but I'll measure it later to be sure. It's definitely stock. I got a Japanese Mustang neck from eBay assuming it would just fit. The neck itself seems to be slightly too wide to fit into the pocket and the screw holes are also too far "back" on the neck, leaving the previously mentioned gap between neck and body. What I really want to do is bring a tape measurer, screw driver, and the neck from my Duo into my local music shop and pull the neck off of one of these CV Duos. I think a visual inspection would do it. I'm going to guess that as long as those screw holes are in the right place the neck will be compatible.
I know this is hardly scientific but:

As you can (maybe kind of) see, the saddles line up (more or less for intonation) and the butt of the necks and the last fret line up as well.

I bet it works. Anyone want to part out a CV? I've been watching the 'Bay with no luck.

cur · Post by **cur** » Wed Aug 04, 2010 9:44 pm

Don't worry about the screw holes in the back of the neck. You can plug them with golf -tees or something. Or just re drill.

Measure from the nut to 12th fret on the neck. Then multiply this number by two. That is the scale of the neck. Now put the neck in the pocket and measure from the nut to the saddles. If you can adjust the saddles to with in the scale of the neck you should be good to go.

truejacqueline · Post by **truejacqueline** » Sat Aug 07, 2010 3:40 pm

Cool. So I need a CV neck. Anyone have one? Want to trade for a Japanese Mustang neck?

mongoose69 · Post by **mongoose69** » Sun Aug 08, 2010 2:12 pm

truejacqueline wrote:Cool. So I need a CV neck. Anyone have one? Want to trade for a Japanese Mustang neck?

I DO! PM sent.

serfx · Post by **serfx** » Mon Feb 21, 2011 7:05 pm

an update to this.
i never got a chance to measure the MIM duo neck nut to butt, but next time i'm at my folks i'll take the neck off the duo i have there and do so.

Jaguar/Mustang neck = 17 3/4" Butt to Nut

Jagmaster/CV Duosonic neck = 17 3/16" butt to nut

not a huge difference but certainly one that makes it impossible to use a CV duo or JagMaster neck on a Mustang/Jag/MM/Bronco/etc.. and vice versa

(note, funny how i'm in the land of metric and i measure everything in imperial..)

rps-10 · Post by **rps-10** » Tue Feb 22, 2011 3:11 pm

Adrian Belew's customised Mustangs were 25.5 scale, he had the neck of that battered stat copied and fitted to them. Plenty of pics of them on the net.

honeyiscool · Post by **honeyiscool** » Tue Feb 22, 2011 7:34 pm

Yeah, I just got a CV Duo neck and it left a huge gap in the neck pocket and totally didn't work.

On the other hand, it gave me idea to customize a body for that neck. I absolutely love the neck and think it deserves a life of its own in its own body. Unfortunately, I don't like the CV Duo pickguard one bit and would want to redo it with rear-routed controls.

How much does it cost to do things like fill body cavities, reroute, refinish a body? It's a lot of work, I know, and I'd do it myself but I have zero tools.

serfx · Post by **serfx** » Tue Feb 22, 2011 7:46 pm

you'd have to fill in the holes on the back of the CV neck and re-drill to place it properly in a different body.
same with the conversion jagmaster neck.

honeyiscool · Post by **honeyiscool** » Tue Feb 22, 2011 7:48 pm

That's why I'd rather mod a CV Duo body.

serfx · Post by **serfx** » Tue Feb 22, 2011 7:54 pm

?

instead of some toothpicks and wood glue?

*shrug* to each their own i say.

cur · Post by **cur** » Tue Feb 22, 2011 8:20 pm

Ok the question I have is: if you fit the neck tight in the pocket will you be able to get the correct scale at the bridge?

serfx · Post by **serfx** » Tue Feb 22, 2011 8:21 pm

you may need some longer screws for intonation, it really depends upon the body.

cur · Post by **cur** » Tue Feb 22, 2011 8:37 pm

Yea, that was what I was wanting to know. With his set up would it work without changes. I did the measurements once on one of my strats and it would be close.

honeyiscool · Post by **honeyiscool** » Tue Feb 22, 2011 10:05 pm

serfx wrote:?

instead of some toothpicks and wood glue?

*shrug* to each their own i say.

I just don't like the idea of drilling a neck, I guess.

JohnnyTheBoy · Post by **JohnnyTheBoy** » Wed Feb 23, 2011 6:57 pm

This is an interesting thread!.....
It has certainly helped me out, so thanks very much!...
I wanted to clarify the differences between the conversion scale 24" Jagmaster necks Vs CIJ/AVR Jazzmaster/strat 25.5" scales
for a shortscale Jazzmaster build im starting...its bewildering that there are even differences between Japanese build Fenders and American Build Fenders, prob due to the Imperial/Metric scale differences!...

Not a thread hijack as i think its more than relevant, but Sorry if im stating the obvious...Its helping me work it all out in my mind as i write this!..

I think the major problem in all this is whether you can get it to intonate easily, whether you have to move the bridge (drastic), buy longer saddles (strat bridges) or just lengthen the saddles on a tele bridge...
The amount of frets, pocket size and distance from 12th fret to bridge etc will all need to be taken into consideration...

In my case i would think it would be easier to build a body around a conversion neck with a slightly different neck position, bridge position, or slight intonation adjustment dependant on bridge style...
If i was using a conversion neck on another body, i would probably just drill new holes in the neck rather than the body, and use the tooth pick/matchstick and glue method serfx mentioned...

When i offer my CIJ Jazzmaster pickguard upto my 09 Jagmaster, its clear that the bridge position for intonation isnt far out at all..so if i use the Jagmasters body and scale length as a template and the CIJ Jazzmaster pickguard i should be able to pull this build off nicely!
Fingers crossed...

Maybe there needs to be a sticky with a list of what can and cant be done with these conversion necks..plain and simple

serfx · Post by **serfx** » Wed Feb 23, 2011 7:05 pm

i'm in the process of building a body around a cv duo neck
http://www.shortscale.org/forum/viewtopic.php?t=35643

JohnnyTheBoy · Post by **JohnnyTheBoy** » Wed Feb 23, 2011 7:40 pm

serfx wrote:i'm in the process of building a body around a cv duo neck
http://www.shortscale.org/forum/viewtopic.php?t=35643

Cool project!
have just read thru your post...funnily enuff im using Oak for the body, as i got it cheap off a friend...that's what you were intially using yes!
How far forward are you now?...im gonna start routing everything out tomorrow hopefully...
I agree the necks on cv duos are fab!..mine feels slightly different to my Jagmaster, but im sure its the shorter body length on the Duo...
Parts over here in Blighty are sodding hard to come by!...im after a Jazzy or Jag tremolo and theyre like hens teeth...