Author Topic: Jordan Bosstone and Bossboost pictures  (Read 30170 times)

Sir H C

Jordan Bosstone and Bossboost pictures
« on: August 19, 2006, 04:12:08 PM »
So here are two different Bosstones, one from Nashville one from California, and a Bossboost.  Major differences all around.  Big pictures so I thought I would do links.

http://i3.photobucket.com/albums/y57/c-martin/fuzzes/close%20shots/jordan-bosstones-both-compside.jpg

The Nashville one, transistors are M924 and 2N3565 (round one), GI301 diodes, and date code of mid 72 on the diodes, 3 stacked caps all .01, vertical cap 47n, resistor under wires looks like maybe a 47k?:
http://i3.photobucket.com/albums/y57/c-martin/fuzzes/close%20shots/jordan-bosstone-nash-wiring.jpg
http://i3.photobucket.com/albums/y57/c-martin/fuzzes/close%20shots/jordan-bosstone-nash-trace.jpg
http://i3.photobucket.com/albums/y57/c-martin/fuzzes/close%20shots/jordan-bosstone-nash-compside.jpg

California Bosstone, 2N3397 (yellow dot) and MMPS5513 (face down) verical cap is 220k, cap under other is .02 also, can not read diode values:
http://i3.photobucket.com/albums/y57/c-martin/fuzzes/close%20shots/jordan-bosstone-ca-wiring-circuit.jpg
http://i3.photobucket.com/albums/y57/c-martin/fuzzes/close%20shots/jordan-bosstone-ca-compside.jpg
http://i3.photobucket.com/albums/y57/c-martin/fuzzes/close%20shots/jordan-bosstone-ca-circuit.jpg

Bossboost shots, 2N2712 (yellow looking one) 2N3397 (other), knobs Bass (left) Treble (right):
http://i3.photobucket.com/albums/y57/c-martin/fuzzes/close%20shots/jordan-bossboost-wiring.jpg
http://i3.photobucket.com/albums/y57/c-martin/fuzzes/close%20shots/jordan-bossboost-compside-back.jpg
http://i3.photobucket.com/albums/y57/c-martin/fuzzes/close%20shots/jordan-bossboost-compside.jpg
http://i3.photobucket.com/albums/y57/c-martin/fuzzes/close%20shots/jordan-bossboost-circuit.jpg
« Last Edit: August 19, 2006, 04:14:51 PM by Sir H C »

Dan N

Re: Jordan Bosstone and Bossboost pictures
« Reply #1 on: August 19, 2006, 06:12:03 PM »
Troublemaker! >:(







 :icon_wink: So far that Californian is looking different from the DIY Bosstone we know and love. Have not started looking at the other yet.



Thanks for the killer photos!

Sir H C

Re: Jordan Bosstone and Bossboost pictures
« Reply #2 on: August 19, 2006, 06:27:19 PM »
And they sound completely different.  The Nashville one is smoother, the California one sounds like it is ready to oscillate on almost every note.  The boost is a nice clean boost.  Now just have to find one more knob (got two off e-bay on a little passive mixer).

Dan N

Re: Jordan Bosstone and Bossboost pictures
« Reply #3 on: August 19, 2006, 07:11:12 PM »
Hard to see, but this is what I get for the Alhambra:

http://users.rio.com/senorris/junk/bosstoneCA%3f.gif

About the knobs, seems I've seen something similar on one of those telephone amp things that strap right onto the earpiece. Unfortunately, most of them are beige...

Thanks again for the photos!

brett

Re: Jordan Bosstone and Bossboost pictures
« Reply #4 on: August 20, 2006, 04:23:45 AM »
very informative
Any chance of schematics for comparison?
thanks
Brett Robinson
Let a hundred flowers bloom, let a hundred schools of thought contend. (Mao Zedong)

Dan N

Re: Jordan Bosstone and Bossboost pictures
« Reply #5 on: August 20, 2006, 04:06:52 PM »
The Tennessee is like Arons schematic with some value changes:

http://users.rio.com/senorris/junk/bosstoneTN.gif

aron

Re: Jordan Bosstone and Bossboost pictures
« Reply #6 on: August 20, 2006, 04:29:58 PM »
Dan,

Thanks for the work!

 :)


Sir H C

Re: Jordan Bosstone and Bossboost pictures
« Reply #7 on: August 20, 2006, 04:40:21 PM »
Dan, great work!  The volume pot is about 150k on the CA one.  I had that pulled so I measured it.

Bernardduur

Re: Jordan Bosstone and Bossboost pictures
« Reply #8 on: August 20, 2006, 04:40:28 PM »
Thanks man! Was just considering building one!
Am learning something new every day here

SquareLight | MySpace account

RLBJR65

Re: Jordan Bosstone and Bossboost pictures
« Reply #9 on: August 20, 2006, 11:05:42 PM »
Interesting! I've also seen the Sho-Sound Nasville model with 3 - .05uF, 1 - 50pF, Q1 - MPS6513 and Q2 - 2N4249, unreadable diodes, resistors all the same as in Aron and R.G.s schematics. http://www.diystompboxes.com/pedals/bosstone.gif     http://www.geofex.com/FX_images/bosstone.gif

Are those rectifier diodes? I can't find any data.

Thanks, for the great pics :icon_biggrin:

Richard
Richard Boop

Dan N

Re: Jordan Bosstone and Bossboost pictures
« Reply #10 on: August 21, 2006, 12:28:51 AM »
Chris, can you verify that that one cap in the Nashville is 47nf and not 47pf like in the other schematics?

Your description of the CA one has me raring to build one!

Sir H C

Re: Jordan Bosstone and Bossboost pictures
« Reply #11 on: August 21, 2006, 07:20:32 AM »
Chris, can you verify that that one cap in the Nashville is 47nf and not 47pf like in the other schematics?

Your description of the CA one has me raring to build one!

Okay, on closer inspection it says 47M.  It is pretty chunky for a 47pF cap, but then again I have no clue on the voltage rating.  Only other marking is the Z5F for the dielectric.

brett

Re: Jordan Bosstone and Bossboost pictures
« Reply #12 on: August 21, 2006, 07:56:41 AM »
Hi
The bypass caps look like 47pF ceramic cap in both models.  47nF would be too much,
The rectifier diodes are said to be 1N4001, but both 1N4001 and 1N4148 sound good.

The Nashville one probably has similar gain in Q1 to the other, inspite of the higher collector resistance on Q1 (18K+47k instead of 18k +18k).  More importantly, I *think* Q2 gives more active loading (3.6 times ((47k+18k)/47K) instead of 2 times ((18k+18k)/18k).  Someone should check that - I get the maths mixed up sometimes.

If so, it makes the gain of this circuit much higher than the usual schematic.  For example, if Q1 has hFE = 150, the circuit overall has gain of 150 x 3.6 =540, whereas it is only 150 x 2 =300 in the usual circuit (18k + 18k or 22k +22k resistors).

Which makes me think - why not use a 10k resistor and a 50k pot wired as a variable resistor in place of that fixed 47k resistor?  I think that would give gains from about 250 to 600.
cheers
« Last Edit: August 21, 2006, 08:04:55 AM by brett »
Brett Robinson
Let a hundred flowers bloom, let a hundred schools of thought contend. (Mao Zedong)

Dan N

Re: Jordan Bosstone and Bossboost pictures
« Reply #13 on: August 21, 2006, 02:45:46 PM »
Thanks, Chris. I changed it on the schematic.

Interesting stuff, Brett! Thanks!

At some point this circuit went from being a hippy fuzz to a steel guitar tool. It appears  that the Sho-Bud folks did some experimenting with values over the years.

Sir H C

Re: Jordan Bosstone and Bossboost pictures
« Reply #14 on: August 21, 2006, 04:14:39 PM »
Am I going to have to get a Sho-Bud version too?   :icon_biggrin:

A buddy used the Nashville one on an album and loved it a lot more than his boutique version of it.

I think I am going to have to make a pedal that works with these so that you can have them on the floor.  Maybe so you can put two in with two switches.  That would rule.

RLBJR65

Re: Jordan Bosstone and Bossboost pictures
« Reply #15 on: August 21, 2006, 04:36:42 PM »
Richard Boop

Sir H C

Re: Jordan Bosstone and Bossboost pictures
« Reply #16 on: August 21, 2006, 05:12:45 PM »
Pretty!  Does that one have anything to protect the circuit board from the battery?  None of mine had anything good for these modern metalic batteries.  I think there was foam in some a long time ago but that because goo much like the MXR foam.

brett

Re: Jordan Bosstone and Bossboost pictures
« Reply #17 on: August 21, 2006, 07:50:50 PM »
Hi
This one seems to be the "standard" design with 2 x 18k resistors  (brown-silver-orange-silver, one is partly hidden under the wires)
thanks for the photos
cheers
Brett Robinson
Let a hundred flowers bloom, let a hundred schools of thought contend. (Mao Zedong)

Dan N

Re: Jordan Bosstone and Bossboost pictures
« Reply #18 on: August 21, 2006, 07:52:06 PM »
Am I going to have to get a Sho-Bud version too?   :icon_biggrin:

Ha ha, sorry, I was assuming Sho-Sound and Sho-Bud are the same folks. Don't know it for a fact. You probably have the Boss Tone corner of your collection covered.

RLBJR65, what a beauty! Thanks!



RLBJR65

Re: Jordan Bosstone and Bossboost pictures
« Reply #19 on: August 21, 2006, 09:08:10 PM »
It is a beauty but its not mine :icon_sad: A friend sent the pics to me.

Sir H C, I saw lots of gut shots, these were the best. As far as I can see there was not any foam or anything else in there to keep the battery from bouncing around.

Anyone know where to get those input jacks?
Richard Boop