Treble Boost

[Gearbuilder]

Hi,

I've finally made an Orange Treble Bass Boost with an OC 44(old black one)It sound great and thicker than the twoDallas Rangemaster Clones(one with OC76 and one with an OC81)and no hiss!
Look at them!
N°1
ftp://zepfloyd93.no-ip.info/Photos/Range%20and%20Orange/My%20Studio%20003.jpg
N°2
ftp://zepfloyd93.no-ip.info/Photos/Range%20and%20Orange/My%20Studio%20002.jpg
Orange Treble Bass
ftp://zepfloyd93.no-ip.info/Photos/Range%20and%20Orange/My%20Studio%20001.jpg

Bruno

[brian wenz]

Hello Hello--
 Why not put the OC44 in the Rangemaster where it belongs ??
Come to think of it, doesn't the Orange take an OC76?  !!
Brian.

[Gearbuilder]

Hi
 Thank you Brian i'm going to try the OC 76 in the Orange TBB (i didn't think about that because when i built it i look in my germ stock and i didn't find the OC76.Then i try the OC 44,whaooo ,in this pedal it's terrific,maybe the low gain combined with the variable frequency range of the Orange allow to give it a good tone.The germs don't have a flat bandwidth and when i've made the rangemaster ,i think that the OC 76 was better than the OC44.
At this time my scope wasn't  out of order and i tweak the Rangemaster with a sine to have the +24dB at the right frequency ,and sometimes the gain was good but there's too many hiss to use it.
Bruno

[brian wenz]

Hello Hello-
   Yeah, every RM I've built had to have the  470K, 68K, and / or the 4.7K adjusted  to suit the germ. tranny being used.  Every one of 'em was different!   The values of the Orange TB probably matched up better with the OC44 you were using!
Brian.

[petemoore]

Is the tranny by far the largest contributor of hiss [it would seem so] or have you had any luck 'biasing the hiss oout?'
 Justt kind of wondering...
 Rangemasters...I thought I gave up on em for their abundance of such problems some time ago...
 Thinking I'm going to be trying a Rangepig type setup next...

[Gearbuilder]

Hi,
yes i've got the same problem with my other RM,3 RM aand the three different but i didn't have any problem with the OC 44 Orange TBB ?
Try yourself and post the results ,i'm curious to know if it's an happy mistake! Perhap's the orange TBB wins against my RM's because the layout is better than the RM?
Bruno

[brian wenz]

Hello Hello--
   I think it depends on the amount of gain you want to get out of the tranny and the properties of the tranny itself.   OC44, OC76, etc. all have different characteristics.   Then, any given batch of OC44  [or whatever..] will differ from each other in gain and noise.  
Brian.

[Gearbuilder]

Hi,
Yes i think so,do you know the SFT 377? I'm asking me  if it was used in a commercial pedal'Vintage for sure.I've got thousand of schematics but i never see only one.Perhaps they are good for VOX treble booster type (SFT337)
i didn't found any datasheet on the SFT337 then i'm going to try with this schematic.
Bruno