Roland - AP-2 ( Phase-II )  [schematic]

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
analogguru
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Post by analogguru »

There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.

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Post by Brian M »

from what i can see, it looks like it could be very similar to the phaser side of the jet phaser. I fixed one a few years ago for a friend. Even offered to buy it for $50... He laughed at me :)

I seem to remember two LM324's with 4 jfets inbetween... looks like a similar layout from what i remember, at least in that particular section of the PCB.

analogguru
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Post by analogguru »

It´s a 6-stage Fet-based Phaser

analogguru
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Post by Brian M »

analogguru wrote:It´s a 6-stage Fet-based Phaser

analogguru
ahh, yes, now that i look a bit closer i can see what appears could be two more fets over on the left side of the board.

I've had the pleasure of playing around with a jet phaser, and the AP5, which was pretty cool as well. Never tried this one, or even seen one in real life.
The AP 5 was probably the coolest phaser i've ever tried. I've tried to get one since I heard it years ago.

Unfortunately i missed this acution last week
https://cgi.ebay.com/Roland-Phase-Five-P ... dZViewItem.

it also has a gut shot.:)

jakehop
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Post by jakehop »

I took some shots if the PCB when I repaired one last time. I'll try to upload those, as well as what I have from the Roland Phase Five, if anybody is interessed? I also have a Ibanez PT-999 which is a Phase90 from Ibanez, if anybody wants to see that.

Jake

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Post by analogguru »

In the meantime some guts from evilbay:
https://cgi.ebay.com/VINTAGE-70s-ROLAND- ... 0212670967

analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.

Solidhex
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Post by Solidhex »

Yo

I currently have one of these that a friend of mine said wasn't working right. Someone replaced the output jack. It seems to phase ok but distorts in an unpleasant way when the strings are hit harder. Anyone seen a schematic around for it? The Roland phase-II ap-2 that is...

--Brad

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Post by marshmellow »

60 posts and still don't know the way it goes? :scratch: :wink: :D


:arrow: Take good photos, post them here, trace the schematic yourself / hope someone will do it here. Cheers!

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Post by borislavgajic »

please do not ask if somebodi intrested........just post as much as you can!!! and somebody is going to be happy......next year.......in 10 years from now..... :arrow: :arrow:
so just post please....thanks

boris

evilbay pictures are not there enymore! :?

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Post by Bernardduur »

I have a schematic here if someone is interested!
'No more....... loud music.......'

borislavgajic
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Post by borislavgajic »

if it's near,put it here! :wink:

it rimes

Bernardduur
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Post by Bernardduur »

'No more....... loud music.......'

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Post by marshmellow »

Thanks!

Ledd
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Post by Ledd »

Hi there. I am afraid the link is not working, and I really need this to fix my recently non-functional AP-2 pedal. Could you please repost the link? Thanks.

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Dirk_Hendrik
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Post by Dirk_Hendrik »

Ledd wrote:Hi there. I am afraid the link is not working, and I really need this to fix my recently non-functional AP-2 pedal. Could you please repost the link? Thanks.

Could have guessed. Bernardduur is a master in taking stuff down too soon.

Lemme fix that in Dutch for ye.

Hey Rogier! Laat die meuk es effe op je site staan man!
Sorry. Plain out of planes.

http://www.dirk-hendrik.com

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Post by RnFR »

if anyone has it(or any other schematic), please just attach it to the site. that's what our server is for! :wink:
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Post by Bernardduur »

Image
'No more....... loud music.......'

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lolbou
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Post by lolbou »

Hoog tijd! :D Dank U Rogier... :wink:
- Are you a mod or a rocker?
- Uh, no, I'm a mocker.

Bernardduur
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Post by Bernardduur »

:D

Veel plezier ermee!
'No more....... loud music.......'

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Post by chicago_mike »

Cool! Im building a jetphaser as I type this 8)
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