Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Instruments and Amps Everything that makes music, Especially including instrument amps.

Post Your Pics of Store-Bought Instruments/Amps Here
Post Your Pics of Store-Bought Instruments/Amps Here
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 26th April 2008, 12:55 PM   #21
losaavedra is offline losaavedra  Spain
diyAudio Member
 
Join Date: Apr 2008
Longish post this, mostly from something I posted a couple of years back on another forum under guitar building:

In the late 60's what I now call my "Chimera" was a thru' neck bass guitar I used to play in blues bands around South London. In the 70's I decided to change it to a 'normal' guitar so off came the four elephant winders, the holes were filled in, and on went a six set. I then took out all the frets, sanded away the existing slots, and re-fretted and position marked it to its current two octaves using a non-bass-guitar scale. In those days I had a 9 Volt powered pre-amp embedded in the back end of the bodywork but the control setup was rather more orthodox than today. The early version had home-made wire wound pickups that ran thru'an internal microphone transformer to boost the output a bit.

A bit later the guitars back end cracked off, mainly due to the rather large hole I'd made for the pre-amp so I straightened it across and contoured the remaining body a bit which naturally also reduced the overall weight of the guitar! Since the seventies there have been numerous other changes, mostly by way of pick-up swaps (the two current pickups were moved across from an old Maya strat copy) and re-wiring experiments. I finally dumped the internal pre-amp about four years ago.

The current wiring is a bit unorthodox. The three knobs are Volume 1, Volume 2 and Tone. The output socket is actually a stereo one for a reason explained later. A particular knob doesn't do anything if its related (very small) switch is in the UP position. There are actually five of these tiny switches in a row. Starting at the neck end Switch 1 is OFF/ON for the neck pickup and Switch 2 is OFF/ON for the bridge pickup. Switch 3 is UP for the two pickups to work as single coil and DOWN for the two pickups to be humbucked together (took me ages to figure the wiring for that!). Switch 4 is UP to de-activate the volume and tone control and DOWN to activate. The reason for this switchable activation and de-activation is that I rarely fiddle with the rotary controls while playing, I just switch in whatever preset I've adjusted them to beforehand! Another oddity lies in switch 5, a three position switch. Its 'neutral' position is upright, nothing is activated when in that position. UP, however, activates the other volume control which happens to be the knob nearest to the pickups. The connections from that control feed to the second signal output on the stereo socket already mentioned.

So, if I use a mono guitar cable the second connection in the socket gets grounded. But when I use a stereo guitar cable its split into two mono jacks at the other end where I have a Digitech processor (an RP50 actually, cheap as they come!). One of the mono jacks goes into the INPUT socket on the Digitech and the other goes into the EXPRESSION PEDAL socket. Depending on the Digitech's effects settings any variable resistance plugged into the EP socket will control either Volume, Wah or Whammy. So what I'm doing here is moving an EP onto the face of the guitar as an alternative to having it on the floor.

Finally there is the DOWN position of Switch 5. That re-directs the signal away from the EP knob to a miniature jack socket at the end of the line of switches. This accepts a device I call a RAT TAIL. Actually all that amounts to is a mini jack plug with about 9 inches of coax attached, on the other end of which is a very small modified push button. Normally such a push button would have a simple ON/OFF action. The modification was to dismantle it and insert something called Quantum Tunnelling Composite (a metal-filled polymer) between the contacts, then re-assemble it. QTC is interesting stuff. First it's very cheap, less than 2 Quid for a pack of 4 tablets about 2mm square. In its normal state it presents a resistance of around 1M Ohm, but squash it and its resistance drops progressively thru' to 0 Ohms. So ... DOWN on Switch 5 wakes up the RAT TAIL!!!! The tail is long enough for the end to be held in the right hand along with a pick. Push the button at the same time as picking and some pre-determined effect comes into play on the Digitech. I'm working on ideas for a 'pressure plectrum' (the harder you grip it the more effect you get) and even a pressure device that can be bitten upon, putting it on the end of a cable threaded down clothing to inside a shoe, you name it! As I'm currently learning to play alto saxophone it has occurred to me that even a pressure sensitive mouthpiece for that is possible ... a painless way of bending notes perhaps!

Finally on the Chimera there is also a further straightforward push button override. That is mounted near the neck pickup and is reachable with some playing styles using r.h. 2nd or 3rd finger pressure. High resistance to low resistance in one button push in this case and it overrides the Rat Tail.

Another mod I've done is to make the scratch plate in sections so that I can get at my wiring without slackening or removing strings etc. to free the pickups which are on a separate plate.

The guitar at the moment weighs 5 pounds which is pretty light. It's kinda hard to nail down what production guitar it sounds like, if any, as so much can be done with the particular effect used. A couple of my tracks, where on both all the guitar sounds, including 'bass' via an octave dropper, come from the Chimera, can be found at:

http://www.soundclick.com/rojalesbluesband

The following pictures are of the Chimera face-on, control plate, and the back. The funny looking thing sticking out of the back is a recent add-on. It just plugs in for the times I'm using the guitar standing up on a strap and holds the guitar more-or-less in place against my waist and also tilts it up a bit so I can see what I'm playing!!

Here are the pics:

http://i85.photobucket.com/albums/k5...IC/CHIMERA.jpg

http://i85.photobucket.com/albums/k5...C/CHIMFRON.jpg

http://i85.photobucket.com/albums/k5...C/CHIMBACK.jpg

Hmmm ... I think a re-paint might be in order!!

Anyway I'm always interested to hear what others have done or any other general comments.
__________________
Mike
  Reply With Quote
Old 18th May 2008, 07:10 AM   #22
camusmuse is offline camusmuse  United States
diyAudio Member
 
Join Date: Dec 2003
Location: Eastern Missouri
Default My half completed project.......

Yeah, disability and the lack of a real shop have slowed progress significantly......but here is a Epi SG body and EpiLP neck that I got ahold of for cheap and been molesting for a while.....getting ready to finish it soon.....just need a paint booth.......(I hate sanding......lol)

Click the image to open in full size.

Click the image to open in full size.

and this is the "practice rig", Ive been putting together......look for the "knight amp" thread for details.......

Click the image to open in full size.

may not be pretty,, but it makes me smile.....
  Reply With Quote
Old 2nd April 2010, 05:06 PM   #23
chris661 is offline chris661  United Kingdom
diyAudio Member
 
chris661's Avatar
 
Join Date: Feb 2008
Location: Sheffield
Well, every other section has something similar, so - let's post pics of our instruments!
So, what do you guys play?
Chris

Edit: I use a 3.00 mm pick, because using a thin one means you never learn things exactly right.
Attached Images
File Type: jpg 164618.jpg (248.2 KB, 1456 views)
__________________
My work: www.grimshawaudio.com

Last edited by Variac; 15th August 2019 at 07:52 AM.
  Reply With Quote
Old 9th April 2010, 05:17 AM   #24
TechnoBeaver is offline TechnoBeaver  Canada
diyAudio Member
 
Join Date: Apr 2010
Location: Ontario
Sorry heres the Les Paul. I guess you have to click on it, not sure why. It's really small too, I just copied it from my facebook page, guess I didn't need to resize it any more.
Oh well, beats using PhotoBucket.
Attached Images
File Type: bmp BFG.bmp (50.8 KB, 326 views)

Last edited by TechnoBeaver; 9th April 2010 at 05:19 AM.
  Reply With Quote
Old 9th April 2010, 05:33 AM   #25
bob91343 is offline bob91343  United States
diyAudio Member
 
Join Date: Mar 2010
What's with all the guitars? Doesn't anyone play anything else any more?

I own 23 instruments and only one is a guitar. Six saxes, several clarinets, a grand piano, a double bass, set of drums, trombone, two cornets, trumpet, bass clarinet, chromatic harmonica, flute, more....
  Reply With Quote
Old 14th April 2010, 08:21 AM   #26
Fabius_PR is offline Fabius_PR  Italy
diyAudio Member
 
Join Date: Feb 2007
Location: Plugged to my amps...
Send a message via AIM to Fabius_PR
Default My gears.

Hi all,
These are my babies...
Hope you guys will enjoy the show...
Amps: Blackstar HT-5 head - H&K Vortex - Marshall Silver Jubilee model 2558.
Ext cab: Marshall 1922.
Effects: Boss SD-1, Boss MT-2, Boss CS-1, Ibanez Tube King TS-999, Dunlop Cry Baby.
Here we go:
Jackson DR-X [1996]
Click the image to open in full size.
Hamer Slammer series Diablo [ca. 1997]
Click the image to open in full size.
Ibanez JS-100
Click the image to open in full size.
American Std. Strat. [1996]
Click the image to open in full size.
Takamine
Click the image to open in full size.
  Reply With Quote
Old 14th April 2010, 02:42 PM   #27
chris661 is offline chris661  United Kingdom
diyAudio Member
 
chris661's Avatar
 
Join Date: Feb 2008
Location: Sheffield
Very nice. Green is my favourite colour, but if that one goes missing, it wasn't me - honest.

At the moment, I play a Squier Strat, neck pickup, tone controls set to 4. The pedal is a boss ME-20, the amp is very very old, made by Intermusic (anyone heard of them?). In the future, I'd like a 1x12" combo, with a 1x12" extension cab, preferably Marshall for both.
__________________
My work: www.grimshawaudio.com

Last edited by Variac; 15th August 2019 at 07:44 AM.
  Reply With Quote
Old 15th April 2010, 09:34 AM   #28
Fabius_PR is offline Fabius_PR  Italy
diyAudio Member
 
Join Date: Feb 2007
Location: Plugged to my amps...
Send a message via AIM to Fabius_PR
Quote:
Originally Posted by chris661 View Post
Very nice. Green is my favourite colour, but if that one goes missing, it wasn't me - honest.
Thanx Chris...
Right: the green one is one of my favourite, along with the Jackson...
I'm kind of a 'heavy stuff' guy.
While the JS-100 is modified on all electronics (I changed both p.u. with DiMarzio Fred on the neck and Joe on bridge position). All pots have been changed and circuitry was wired accordin to JS-1200 schematics.
I also changed the tremolo with a licensed floyd rose made by guitar depot.
Sounds pretty nice now...
  Reply With Quote
Old 2nd June 2010, 07:41 PM   #29
Cassiel is offline Cassiel  Libya
Account disabled at member's request
 
Join Date: Sep 2004
Location: Madrid
losaavedra, you have a funny guitar. LOL

Click the image to open in full size.

Click the image to open in full size.
  Reply With Quote
Old 28th October 2010, 05:38 AM   #30
zaubertuba is offline zaubertuba  United States
diyAudio Member
 
Join Date: Oct 2010
Here's my NS/Stick (definitely not DIY):

An externally hosted image should be here but it no longer works. Please upload images instead of linking to them to prevent this.



And the fEarful 12/6/1 I built to give it a voice:

An externally hosted image should be here but it no longer works. Please upload images instead of linking to them to prevent this.



In the works - A two-channel preamp with effects loop for the NS.
  Reply With Quote

Reply


Post Your Pics of Store-Bought Instruments/Amps HereHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Post your pro amp pics here. lt cdr data Solid State 6 17th October 2006 08:50 AM
cannot post any pics too big skanders Everything Else 4 22nd July 2003 08:53 PM


New To Site? Need Help?

All times are GMT. The time now is 09:59 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki