Vox / Orange / Apollo - Treble and Bass Booster  [schematic]

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
Solidhex
Resistor Ronker
Posts: 262
Joined: 02 Apr 2008, 05:43
Has thanked: 10 times
Been thanked: 15 times

Post by Solidhex »

Wow

That thing is really crammed in there. Such a departure from the usual wasted space inside most 60's/70's pedals.

--Brad

User avatar
DiscoFreq
Resistor Ronker
Posts: 413
Joined: 13 Aug 2007, 11:56
Has thanked: 7 times
Been thanked: 26 times
Contact:

Post by DiscoFreq »

yes, it was difficult to get it out and back in, there's also black tape around the circuit to avoid shorts.
EffectsDatabase: http://www.effectsdatabase.com
22000 pedals, 4000 brands, 350 brand interviews
NAMM 2016: http://fxdb.org/namm

Solidhex
Resistor Ronker
Posts: 262
Joined: 02 Apr 2008, 05:43
Has thanked: 10 times
Been thanked: 15 times

Post by Solidhex »

Yo

As far as the infamous schematic at the beginning of the thread goes its not so great. I've tried it with various OC76's and the basic Rangemaster setup is much better. The tone control just seems to muddy everything up and seems to sap the vitality of the input signal. Although I'm a fan of the .1 uf output cap the .0022 input cap just seems needlessly small as well.


--Brad

User avatar
theehman
Cap Cooler
Posts: 678
Joined: 16 Aug 2007, 17:52
Location: Clear Creek, IN
Has thanked: 84 times
Been thanked: 87 times
Contact:

Post by theehman »

Here's the schematic for the Vox Treble-Bass Booster.
Last edited by analogguru on 24 Feb 2009, 14:52, edited 1 time in total.
Reason: wrong schematic removed by the moderator
Ron Neely II
Electro-Harmonix info: http://electroharmonix.vintageusaguitars.com
Home of RonSound effects: http://www.ronsound.com
fx schematics and repairs

analogguru
Old Solderhand
Posts: 3283
Joined: 26 Jun 2007, 14:58
Been thanked: 110 times
Contact:

Post by analogguru »

The above is (sadly again) an incorrect Vox factory schematic of the V8401 made by Jen in a plastic box.

The correct (traced and verified) schematic can be found here:
Vox V8401 Treble-Bass Booster schematic

I am currently working on the schematic for the Vox V840 which apppears similar to it.

analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.

User avatar
theehman
Cap Cooler
Posts: 678
Joined: 16 Aug 2007, 17:52
Location: Clear Creek, IN
Has thanked: 84 times
Been thanked: 87 times
Contact:

Post by theehman »

analogguru wrote:The above is (sadly again) an incorrect Vox factory schematic of the V8401 made by Jen in a plastic box.

The correct (traced and verified) schematic can be found here:
Vox V8401 Treble-Bass Booster schematic

I am currently working on the schematic for the Vox V840 which apppears similar to it.

analogguru
I wondered about that after the Repeat Percussion fiasco, but decided to go ahead and post it anyway. It's unfortunate there's no way to delete attachments to remove them from the forum.
Ron Neely II
Electro-Harmonix info: http://electroharmonix.vintageusaguitars.com
Home of RonSound effects: http://www.ronsound.com
fx schematics and repairs

analogguru
Old Solderhand
Posts: 3283
Joined: 26 Jun 2007, 14:58
Been thanked: 110 times
Contact:

Post by analogguru »

theehman wrote:It's unfortunate there's no way to delete attachments to remove them from the forum.
already done, you´re welcome.

analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.

Solidhex
Resistor Ronker
Posts: 262
Joined: 02 Apr 2008, 05:43
Has thanked: 10 times
Been thanked: 15 times

Post by Solidhex »

biffa wrote:That emitter on the vox t&b looks very bare
Is it right do you think?
Also,whats bsm doing?
They build the invisible orange t&b?
And has anyone heard of their 'winston booster'?
Hmm

BSM makes great sounding stuff. I take their press stuff with a grain of salt though. Are you talking about the "OR" model? That's the one supposedly based on the Orange treble and bass booster. It has a single tone control.
I think its a little strange they seem to know exactly what tracks David Gilmour used it on when we can't even confirm the existence of the pedal.

--Brad

Solidhex
Resistor Ronker
Posts: 262
Joined: 02 Apr 2008, 05:43
Has thanked: 10 times
Been thanked: 15 times

Post by Solidhex »

biffa wrote:i bought a bsm fuzzbender
i thought it was ok but maybe a little sterile
the stomp switch is crap though,and i've heard others had a similar problem
they sent theirs back and had it it fixed ok,but mine is probably not long out of warranty?

Yeah, I had to replace the switch in my friends bsm treble booster. I think it was the RM model. I was surprised to see that the volume control was wired on the output of the pedal. Just a big plastic block with a volume control on the end.
Around when did this schematic show up online? The Orange T and B booster that is?

--Brad

Pedalman85
Posts: 15
Joined: 27 Apr 2009, 20:19
Has thanked: 2 times
Been thanked: 10 times

Post by Pedalman85 »

The Picture on muziq site is from me i found that at a pawn shop for 40 bucks. It's noisey but cranks out a surprisingly loud boost treble or bass. I've come to the conclusion i'm the only person who has one and is looking for someone to tell me it's value. I've owned it for about two years and just now found this site. I've seriously been researching this pedal for what seems like forever. so if anyone has an idea on the value please reply. otherwise it will remain priceless in my opinion. it's gotta be very rare.

Pedalman85
Posts: 15
Joined: 27 Apr 2009, 20:19
Has thanked: 2 times
Been thanked: 10 times

Post by Pedalman85 »

Pedalman85 wrote:The Picture on muziq site is from me i found that at a pawn shop for 40 bucks. It's noisey but cranks out a surprisingly loud boost treble or bass. I've come to the conclusion i'm the only person who has one and is looking for someone to tell me it's value. I've owned it for about two years and just now found this site. I've seriously been researching this pedal for what seems like forever. so if anyone has an idea on the value please reply. otherwise it will remain priceless in my opinion. it's gotta be very rare.
Im talking about the Apollo by the way!

User avatar
soulsonic
Old Solderhand
Posts: 3751
Joined: 27 Jun 2007, 04:38
my favorite amplifier

Stopped using amps mostly...

Completed builds: too many!
Location: Cortland, NY
Has thanked: 97 times
Been thanked: 299 times
Contact:

Post by soulsonic »

Pedalman85 wrote:
Pedalman85 wrote:The Picture on muziq site is from me i found that at a pawn shop for 40 bucks. It's noisey but cranks out a surprisingly loud boost treble or bass. I've come to the conclusion i'm the only person who has one and is looking for someone to tell me it's value. I've owned it for about two years and just now found this site. I've seriously been researching this pedal for what seems like forever. so if anyone has an idea on the value please reply. otherwise it will remain priceless in my opinion. it's gotta be very rare.
Im talking about the Apollo by the way!
PLEASE PLEASE PLEASE post photos so we can see it!!!
"Analog electronics in music is dead. Analog effects pedal design is a dead art." - Fran

Pedalman85
Posts: 15
Joined: 27 Apr 2009, 20:19
Has thanked: 2 times
Been thanked: 10 times

Post by Pedalman85 »

sorry for the wait here are some apollo treble-bass booster Pics!
of course it is covered in heavy electrical tape.
Attachments
apollo1.jpg

Pedalman85
Posts: 15
Joined: 27 Apr 2009, 20:19
Has thanked: 2 times
Been thanked: 10 times

Post by Pedalman85 »

after the tape is off i'm looking at zero damage or corrosion. after looking for a little bit i've realized all the schematics are wrong not completely off, but something's amiss.
Attachments
apollo2.jpg

Pedalman85
Posts: 15
Joined: 27 Apr 2009, 20:19
Has thanked: 2 times
Been thanked: 10 times

Post by Pedalman85 »

first i notice some of the values are different. 390k is a 500k, 80k is a 10k,2k is a 1k.
Attachments
apollo3.jpg

Pedalman85
Posts: 15
Joined: 27 Apr 2009, 20:19
Has thanked: 2 times
Been thanked: 10 times

Post by Pedalman85 »

now here is the weird stuff. the 0.022 Mf is no where to be found. instead there is a network of two .22 mf caps and a 30k resistor.
Attachments
apollo4.jpg

Pedalman85
Posts: 15
Joined: 27 Apr 2009, 20:19
Has thanked: 2 times
Been thanked: 10 times

Post by Pedalman85 »

here is the solder side notice the two blue wires those are the fixed sides of the pot. one connects like normal to the 1800pf cap the other connects between the two caps. one cap going to ground (the strip at the top of the pic) the other to the 30k which connects after the 1800pf . i will check my observations again after i post this to double check but it looks to be considerably different from the schematics.
Attachments
apollo5.jpg

RnFR
Old Solderhand
Posts: 5138
Joined: 09 Jan 2008, 07:02
my favorite amplifier

Traynor YBA-III, Fender Super Six

Completed builds: custom fuzz.
Location: Inner Earth
Has thanked: 141 times
Been thanked: 137 times
Contact:

Post by RnFR »

wow-

will this finally come to an end??? i think i'm going to feel a very happy to see it traced, relieved to get it all over with, but still a little sad to see the mystery go.

ah, screw it- let's see a schematic! :horsey:



and, many thanks to Pedalman for ripping open this mystery box here at FSB. i feel very lucky at the moment!
"You've converted me to Cubic thinking. Where do I sign up for the newsletter? I need to learn more about how I can break free from ONEism Death Math." - Soulsonic

Blog-APOCALYPSE AUDIO

User avatar
Electric Warrior
Diode Debunker
Posts: 738
Joined: 23 Feb 2009, 04:37
Has thanked: 23 times
Been thanked: 97 times

Post by Electric Warrior »

I can hardly wait to see this one... Image

RnFR
Old Solderhand
Posts: 5138
Joined: 09 Jan 2008, 07:02
my favorite amplifier

Traynor YBA-III, Fender Super Six

Completed builds: custom fuzz.
Location: Inner Earth
Has thanked: 141 times
Been thanked: 137 times
Contact:

Post by RnFR »

did you ever get it traced, pedalman?
"You've converted me to Cubic thinking. Where do I sign up for the newsletter? I need to learn more about how I can break free from ONEism Death Math." - Soulsonic

Blog-APOCALYPSE AUDIO

Post Reply