| Author |
 Topic  |
|
|
leonard d rock
Silver Member
Philippines
301 Posts |
 Posted - 02/20/2008 : 00:36:12
|
hi. i just dug up from my collection an 80's Ibanez pt.3 powertrio pedal which has distortion/overdrive, chorus and delay. the overdrive is not really good(it just lowers the level), but the distortion is like a tubescreamer with a little more gain, the chorus has only speed and width, while the delay can go up to 2seconds. i was using the chorus as an effect for my acoustic but i like the sound of the boss chorus better. i saw only one for sale cheap on ebay. i was planning to trade it for a boss metalzone or overdrive. is it a good trade? |
|
|
jack
Platinum Member
USA
1418 Posts |
|
|
Dirk
Platinum Member
Netherlands
1309 Posts |
Posted - 02/20/2008 : 17:03:10
|
That was a great concept, having basically three pedals in one unit.
Basically like a floor multi-effects but with regular knobs.
There was also a bass version, with compression, graphic eq and chorus, and one for acoustic guitars.
|
 |
|
|
Caliban
Bronze Member
United Kingdom
145 Posts |
Posted - 02/21/2008 : 23:43:44
|
That was a great concept, having basically three pedals in one unit.
Basically like a floor multi-effects but with regular knobs.
You know, someone could make a new version of that. They could call it the ME-50. |
|
|
|
leonard d rock
Silver Member
Philippines
301 Posts |
Posted - 02/23/2008 : 01:37:18
|
thanks for the replies guys. i'm still trying to decide whether to trade it up or keep it. who knows it might be collectible someday.its a great concept tho, three must have pedals in one without the daisy-chains and with real time control. i always am wary with the digital-preset/programmable type of pedals, my presets might go up in smoke in the middle of a solo. with knob-type pedals, i can always see my settings.with five or six separate pedals on a board, the only problem is how to turn on two pedals at the same time but we have found ways to go about this, like a loop or turning your foot sideways or tap-dancing. hey caliban, you got me there! there is really an me-50 and it looks good! probably a little expensive too but it could take the place of a lot of pedals, but i like my individual pedals too. |
Edited by - leonard d rock on 02/26/2008 01:34:19 |
|
|
|
Dirk
Platinum Member
Netherlands
1309 Posts |
Posted - 03/01/2008 : 14:40:30
|
A bit late but I finally found the pics again of an older series of floor multi effects Ibanez released.
 |
|
|
|
jaymzHal
Silver Member
United Kingdom
297 Posts |
Posted - 03/01/2008 : 16:35:08
|
| wow Dirk, that reminds me a lot of the Carl Martin Quattro, a really fantastic unit. |
|
|
|
leonard d rock
Silver Member
Philippines
301 Posts |
Posted - 03/03/2008 : 00:33:26
|
great pictures dirk! i remember looking at these pictures in guitar player and wondering what an auto filter or a compressor/limiter was since i had only experience with the overdrives, flanger and delay.they seem to be big units, kind of like dinosaurs compared to the multi-fx of today. by the way, i have decided to keep the pt-3 and use it exclusively for my acoustic gigs. i opened it up the other day and it was pretty crowded in there with numerous opamps: 10 5218's, 2 5238's, 2 3102's and 1 each of jrc386d and tl0220p. i also saw 5 trimpots: 2 for chorus and i for delay time.i couldn't find out what the other pots did but i'll keep you guys posted. i fiddled with the delay time a little bit it has now about 2.5 secs of delay. i also turned the trimpots for chorus to make it more stronger or "chorusy", almost getting into the range of flanging if you max it out; the other pot increases the level of the chorus somewhat. i think it now makes my humble
acoustic really distinctive.  |
Edited by - leonard d rock on 03/03/2008 06:10:12 |
|
|
|
leonard d rock
Silver Member
Philippines
301 Posts |
Posted - 03/31/2008 : 07:30:52
|
| hi guys, its me again. can somebody tell me where the clipping diodes of the pt3 are? i could experiment on it but the pcb seems a little flimsy for repeated soldering. i plan to change the stock diodes with leds to make it more of a boost rather than od/dist, anyway its exclusively now for my acoustic. thanks. |
|
|
|
Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 03/31/2008 : 08:37:42
|
Hi leonard d rock
While I don't know the circuit for this unit, but I have played on
many years ago at a friends home.
It may not use didoes for clipping OD-Dist.
A lot of the older OD-Dist, units just used cascading-multiple gain stages.
Op-amp into another op-amp or transistor into another transistor.
to get the high levels of gain and OD-Dist.
Sort of like what we talk about here sometimes, with running one boost pedals into another boost pedal for overdrive.
But then again , I might be wrong.
Can you upload some pics of the PCB's?
We might be able to help you sort things out.
Regards Dr. Bob |
|
|
| |
Topic |
|
ibanez pt3 powertrio
