Rack System Vs. Tube Heads |
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Rack System Vs. Tube Heads |
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Aug 15 2007, 06:01 PM |
Hmm - I really don't think it would be too hard from an electronics perspective - the only part I don;t have an answer for yet is replacement of a potentiometer with a device or circuit that can vary its resistance based on a digital signal. One possibility would be a Light Dependant resistor and an LED with varying mark space ratio, but there has to be a better way, I'll do some research. The key point is that the control electronice mustnt interact with the tube circuit in any way at all ... I could even build it so it could be added to existing amplifiers I think. Ok, its a long term project but I think it is a good idea - love the idea of switching FX and amp voicing all at the same time - could be really cool! Apologies Muris - don't want to side track the issue or babble on on your sub-forum. But (always a but )... Andrew long time since I did electronics but what about using a more simple DA convert before the potentiometers rather than an LDr/LED array? Just a thought - and probably wrong - electronics isn't a strong point of mine (or as my wife would say 'have you any strong points Tony?' ). Cheers, Tony ps also, quite a few tube amps with midi - H and K and Engl amps spring to mind plus the new Marshall... -------------------- Get your music professionally mastered by anl AES registered Mastering Engineer. Contact me for Audio Mastering Services and Advice and visit our website www.miromastering.com
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Aug 15 2007, 10:25 PM |
Apologies Muris - don't want to side track the issue or babble on on your sub-forum. But (always a but )... Andrew long time since I did electronics but what about using a more simple DA convert before the potentiometers rather than an LDr/LED array? Just a thought - and probably wrong - electronics isn't a strong point of mine (or as my wife would say 'have you any strong points Tony?' ). Cheers, Tony ps also, quite a few tube amps with midi - H and K and Engl amps spring to mind plus the new Marshall... The reason I suggested LDRs (perhaps opto isolators would work here too) is that I want this to be a drop-in replacement for a variable resistor both for retro fitting, and to keep any of the digital stuff far far away from the analog path. But, I am totally open to suggestions, so if I have missed something here maybe you could PM me and we can continue this gear head discussion in private and not corrupt this thread further -------------------- Check out my Instructor profile
Live long and prosper ... My Stuff: Electric Guitars : Ibanez Jem7v, Line6 Variax 700, Fender Plus Strat with 57/62 Pickups, Line6 Variax 705 Bass Acoustic Guitars : Taylor 816ce, Martin D-15, Line6 Variax Acoustic 300 Nylon Effects : Line6 Helix, Keeley Modded Boss DS1, Keeley Modded Boss BD2, Keeley 4 knob compressor, Keeley OxBlood Amps : Epiphone Valve Jnr & Head, Cockburn A.C.1, Cockburn A.C.2, Blackstar Club 50 Head & 4x12 Cab |
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Nov 8 2007, 08:55 PM |
The reason I suggested LDRs (perhaps opto isolators would work here too) is that I want this to be a drop-in replacement for a variable resistor both for retro fitting, and to keep any of the digital stuff far far away from the analog path. But, I am totally open to suggestions Dont know if it's still an issue, but Maxim has some solder in choises: http://www.maxim-ic.com/pl_list.cfm/filter/dp -------------------- Guitar: Ibanez RG370DXCE my backup is a Fender Strat. Amps: Marshall MG and Line6 Spider III 75W combo (preferred) Recording stuff: Cubase SX3, Logic emagic, Novation ReMote SL, M-Audio Pro Synth experiance: Roland, MoTu, Native Instrument, Spectrasonics and Steinberg Main VST's: Kontakt2, FM8, Bass station, Ezdrummer, MoTu EI, Atmosphere, Crystall |
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Nov 8 2007, 09:49 PM |
Dont know if it's still an issue, but Maxim has some solder in choises: http://www.maxim-ic.com/pl_list.cfm/filter/dp Thanks I'll check these out - my immediate concern is that they seem to be limited to 5v but I may have misread that -------------------- Check out my Instructor profile
Live long and prosper ... My Stuff: Electric Guitars : Ibanez Jem7v, Line6 Variax 700, Fender Plus Strat with 57/62 Pickups, Line6 Variax 705 Bass Acoustic Guitars : Taylor 816ce, Martin D-15, Line6 Variax Acoustic 300 Nylon Effects : Line6 Helix, Keeley Modded Boss DS1, Keeley Modded Boss BD2, Keeley 4 knob compressor, Keeley OxBlood Amps : Epiphone Valve Jnr & Head, Cockburn A.C.1, Cockburn A.C.2, Blackstar Club 50 Head & 4x12 Cab |
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Nov 8 2007, 10:44 PM |
Thanks I'll check these out - my immediate concern is that they seem to be limited to 5v but I may have misread that Mmm - yes they are probably limited by the supply-voltage. There is a 24V version, but I dont know how much you need. http://datasheets.maxim-ic.com/en/ds/DS1808.pdf -------------------- Guitar: Ibanez RG370DXCE my backup is a Fender Strat. Amps: Marshall MG and Line6 Spider III 75W combo (preferred) Recording stuff: Cubase SX3, Logic emagic, Novation ReMote SL, M-Audio Pro Synth experiance: Roland, MoTu, Native Instrument, Spectrasonics and Steinberg Main VST's: Kontakt2, FM8, Bass station, Ezdrummer, MoTu EI, Atmosphere, Crystall |
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