Rack System Vs. Tube Heads |
GMC Forum > Discussion Boards > VINTAGE GMC > Community Activities and Tutorials > Ask an Instructor > More instructors > Muris Varajic > Gear (Muris)
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Aug 15 2007, 06:01 PM
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QUOTE (Andrew Cockburn @ Aug 14 2007, 11:11 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
Be friends on facebook with us here. We use professional, mastering grade hardware in our mastering studo. Our hardware includes: Cranesong Avocet II Monitor Controller, Dangerous Music Liasion Insert Hardware Router, ATC SCM Pro Monitors, Lavry Black DA11, Prism Orpheus ADC/DAC, Gyratec Gyraf XIV Parallel Passive Mastering EQ, Great River MAQ 2NV Mastering EQ, Kush Clariphonic Parallel EQ Shelf, Maselec MLA-2 Mastering Compressor, API 2500 Mastering Compressor, Eventide Eclipse Reverb/Echo. |
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Aug 15 2007, 10:25 PM
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QUOTE (tonymiro @ Aug 15 2007, 01:01 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
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QUOTE (Andrew Cockburn @ Aug 15 2007, 10:25 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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Posts in this topic
misterj Rack System Vs. Tube Heads Aug 14 2007, 10:35 PM
muris Thanks for asking!!
Well,I've had Pro... Aug 15 2007, 12:11 AM
Andrew Cockburn QUOTE (muris @ Aug 14 2007, 07:11 PM) Tha... Aug 15 2007, 04:03 AM
MickeM QUOTE (Andrew Cockburn @ Aug 15 2007, 05... Aug 15 2007, 11:34 PM Andrew Cockburn QUOTE (MickeM @ Aug 15 2007, 06:34 PM) Th... Aug 16 2007, 12:03 AM muris QUOTE (MickeM @ Aug 16 2007, 12:34 AM) Th... Aug 16 2007, 04:54 AM
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misterj QUOTE (muris @ Aug 15 2007, 12:11 AM) Tha... Aug 15 2007, 04:55 AM muris QUOTE (misterj @ Aug 15 2007, 05:55 AM) i... Aug 15 2007, 06:08 AM Andrew Cockburn QUOTE (muris @ Aug 15 2007, 01:08 AM) Pro... Aug 15 2007, 06:11 AM muris Looking forward to it mate!!
As I told you... Aug 15 2007, 07:40 AM
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Pavel As far as i know Prophesy II is just a newer versi... Aug 15 2007, 05:08 AM JVM So andrew, if you built this midi device, would yo... Aug 15 2007, 07:58 AM muris Actually,trick is in preamp.
Tube heads have pream... Aug 15 2007, 09:37 AM Andrew Cockburn QUOTE (muris @ Aug 15 2007, 04:37 AM) Act... Aug 15 2007, 10:35 AM dogman QUOTE (Andrew Cockburn @ Aug 15 2007, 04... Nov 8 2007, 06:08 AM
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muris QUOTE (tonymiro @ Aug 15 2007, 07:01 PM) ... Aug 15 2007, 07:30 PM muris You're not corrupting at all guys but if you w... Aug 15 2007, 10:28 PM Andrew Cockburn QUOTE (muris @ Aug 15 2007, 05:28 PM) You... Aug 15 2007, 11:24 PM
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Andrew Cockburn QUOTE (Twibeard @ Nov 8 2007, 02:55 PM) D... Nov 8 2007, 09:49 PM Twibeard QUOTE (Andrew Cockburn @ Nov 8 2007, 09:4... Nov 8 2007, 10:44 PM Andrew Cockburn QUOTE (Twibeard @ Nov 8 2007, 04:44 PM) M... Nov 8 2007, 10:58 PM
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Juan M. Valero I'm thinking about to buy the Prophesy, but it... Aug 22 2007, 09:02 AM Andrew Cockburn QUOTE (Juan M. Valero @ Aug 22 2007, 04:0... Aug 22 2007, 09:43 AM muris QUOTE (Juan M. Valero @ Aug 22 2007, 10:0... Aug 22 2007, 10:46 AM
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Juan M. Valero Another question about the Prophesy... Has it got ... Sep 8 2007, 05:24 AM Wallimann Looks like we're all gonna be on Prophesy soon... Sep 8 2007, 05:55 AM Juan M. Valero QUOTE (Wallimann @ Sep 8 2007, 06:55 AM) ... Sep 8 2007, 06:00 AM muris Ahh,no I don't have it really..
But it has E... Sep 8 2007, 07:37 AM Andrew Cockburn QUOTE (muris @ Sep 8 2007, 02:37 AM) Ahh,... Sep 8 2007, 09:45 AM
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tonymiro You can sometimes get someone nice to send you the... Nov 8 2007, 06:28 AM
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