blackmore's treble booster

[Doug_H]

If ammscray got the device wrong, the treble booster would make more sense, and putting it before the amp, not before the zonk makes sense as well.

I checked at tonefrenzy and they weren't specific about what order they plugged them in when they tried out a real one.

It's funny - BSM appears to have collected up all the treble booster schematics from the net that they can find and then made pedals from them. I'd bet that the JFET "Hornby" comes from the ammscray-aron-geofex line, as there doesn't seem to be any other sources.

And according to them they used a Ge xsistor too. They claim to have incorporated "Blackmore mods" into one of their models, and cite specific deep purple albums where it was used and etc. I don't know. After a while my BS-o-meter needle starts going into the red after reading enough of this stuff, but anyway...

If I ever get to actually examine a real HSTB, this will get settled.

Well, you settled it for me. I know not to necessarily expect it to work as drawn right now, although it may very well and end up surprising us all.

Doug

[nero1985]

hehe maybe i should ask the man himself, he lives by my town

[lovric]

Please excuse my self-confidence on what 'recognizable tone' is.

2N456 (couldn't find the 2N4561) is a PNP Ge in TO-3 casing, 2N486 is TO-5.  Couldn't find any Ge trannies marked with 4 digits. Was there any consumer products in sixties or early seventies made with FETs at all?

Tonefrenzy says: "twisting the Swell control without the Treble Booster is nearly a waste of time". Swell = Zonk Machine's output pot.

HSTB has a battery clip and no other means of suply so it's independent and could provide 'reversed' rails for PNPs:

(pic is from a japanese site)

I certainly am under the pressure from BSM advertisements and various internet stories and your insights and experience are balancing it.

[formerMember1]

don't know much of blackmore, and didn't read all posts in the thread.

But i read somewhere that blackmore had his superleads modded for 200watts and modded for preamp volume, way before the master volume amps Marshal made.  He also had his amps modded for lots of treble.  I don't even think he used the bass tone knob, i think it was even removed from the circuit.  I think he got a enough bass and thickness from the tape deck and used the amp for volume and treble MArshall Power/Tone.

Only explaination i have been able to come up with,..

hope i helped some,..(just read that stuff in places)

At the volume he used, the tone changes significantly,..that is probably why he used ac30's on albums,cuz they were smaller,...

I like havin Power, there is nothing like a cranked tube amp,..

[Fret Wire]

Blackmore used the 200w Major, not the superlead. Supposedly modded at the factory for more gain. As loud as they were, they were fairly clean amps.

[formerMember1]

thanks for correcting me fretwire, after i signed off, i realized my mistake,..

Yeah, i read somewhere that they weren't enough gain, so blackmore cascading the inputs or something, and actually this helped Marshall to make the master volumes or somehting,...