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natthu
Gold Member

Australia
756 Posts
Posted - 04/07/2009 :  15:44:48  Show Profile  Reply with Quote
Moog MF-101 Lowpass Filter. S/N 7324
Edited by - natthu on 04/09/2009 04:01:45
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sp-1
Platinum Member

Germany
1454 Posts
Posted - 04/07/2009 :  17:11:58  Show Profile  Reply with Quote
Thanx natthu

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dfx
Copper Member

Philippines
33 Posts
Posted - 04/08/2009 :  04:08:27  Show Profile  Reply with Quote
Here's inside my CS-3 with Monte Allums Opto Plus Mod First Version
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dfx
Copper Member

Philippines
33 Posts
Posted - 04/08/2009 :  04:18:43  Show Profile  Reply with Quote
Here's a couple of shots also of my AMDEK CMK-100 Compressor
















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Dr. Bob
Moderator

Australia
6593 Posts
Posted - 04/13/2009 :  15:22:35  Show Profile  Visit Dr. Bob's Homepage  Reply with Quote
Boss PSC-240A Switching Power Supply
Ships with the Boss BCB-60 - Six pedal board case.

Warning - Danger
The unit contains lethal & deadly voltages.
If you are unfamiliar with working on SMPS Switched Mode Power supplies
It is advisable if you give it to a competent tech to repair.

These units bite really hard, & you usually only get one go.
Before you go to that big pedal board in the sky.

So please heed the warnings.

Internal pictures were added for Technical reference & general interest
Regards Dr. Bob - Moderator
Edited by - Dr. Bob on 04/19/2009 16:07:49
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Mesjoggah
Gold Member

Netherlands
595 Posts
Posted - 04/19/2009 :  08:52:06  Show Profile  Click to see Mesjoggah's MSN Messenger address  Reply with Quote
Rocktek FLR-01 Flanger
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verivorax
Platinum Member

Canada
1185 Posts
Posted - 04/19/2009 :  15:02:28  Show Profile  Reply with Quote
OD-1 rev.B SN# 8700
There's already one of these but part of the IC is obscured by that blasted brown wire. Here's my version.



Is there some kind of date-coding on this IC? I surmise that Boss began the use of Japanese-made 14-pin ICs before the 8-pin changeover to use up some circuits which were already printed..

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Laurie
Double Platinum Member

Canada
4854 Posts
Posted - 04/19/2009 :  15:42:26  Show Profile  Visit Laurie's Homepage  Reply with Quote
MXR M-135 Smart gate
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Laurie
Double Platinum Member

Canada
4854 Posts
Posted - 04/19/2009 :  15:49:00  Show Profile  Visit Laurie's Homepage  Reply with Quote
quote:
Originally posted by verivorax

OD-1 rev.B SN# 8700
There's already one of these but part of the IC is obscured by that blasted brown wire. Here's my version.

Is there some kind of date-coding on this IC? I surmise that Boss began the use of Japanese-made 14-pin ICs before the 8-pin changeover to use up some circuits which were already printed..

G'day! The NEC UPC4741C is from the early 1990's - the "92' in the chip code looks right. It may be that the opamp has been replaced in this pedal...

UPDATE: OH WOW!! I've just rechecked the pedal page... and it says for the Rev 1B "OP-AMP: Up to 8400 RC3403ADB, from 8600 uPC4741C (NEC)". It's all good!

Oh boy. Veriovax, i owe you a huge apology for probably giving you a heart-attack!!
Edited by - Laurie on 04/19/2009 20:31:17
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verivorax
Platinum Member

Canada
1185 Posts
Posted - 04/19/2009 :  20:55:18  Show Profile  Reply with Quote
Heart's okay, thanks! I won't have to throw the pedal in the bin after all!

I appreciate your vigilance!!!
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Dr. Bob
Moderator

Australia
6593 Posts
Posted - 04/20/2009 :  14:50:52  Show Profile  Visit Dr. Bob's Homepage  Reply with Quote
Livingstone E10 CH Chorus
With Analog BBD Chips
Sold thu Aldi
Edited by - Dr. Bob on 04/20/2009 14:55:05
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Laurie
Double Platinum Member

Canada
4854 Posts
Posted - 04/24/2009 :  04:18:39  Show Profile  Visit Laurie's Homepage  Reply with Quote
MXR EVH-117
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Dr. Bob
Moderator

Australia
6593 Posts
Posted - 04/28/2009 :  16:09:46  Show Profile  Visit Dr. Bob's Homepage  Reply with Quote
UC200 Ultra Chorus - Behringer

The units uses reissued "Cool Audio" BBD & clock driver IC's.
The Chorus has a very (weak-almost no) chorus effect in mono. (And with all the pots Maxed Out)
I still have to try it out in stereo, to see if it has a stronger effect.
Regards Dr. Bob












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nathanscribe
Silver Member

United Kingdom
376 Posts
Posted - 04/28/2009 :  19:08:17  Show Profile  Visit nathanscribe's Homepage  Reply with Quote
Behringer VM-1 Analogue Delay.
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ssanyee
Silver Member

Hungary
288 Posts
Posted - 04/30/2009 :  18:24:25  Show Profile  Reply with Quote
quote:
Originally posted by Laurie

quote:
Originally posted by verivorax

OD-1 rev.B SN# 8700
There's already one of these but part of the IC is obscured by that blasted brown wire. Here's my version.

Is there some kind of date-coding on this IC? I surmise that Boss began the use of Japanese-made 14-pin ICs before the 8-pin changeover to use up some circuits which were already printed..

G'day! The NEC UPC4741C is from the early 1990's - the "92' in the chip code looks right. It may be that the opamp has been replaced in this pedal...

UPDATE: OH WOW!! I've just rechecked the pedal page... and it says for the Rev 1B "OP-AMP: Up to 8400 RC3403ADB, from 8600 uPC4741C (NEC)". It's all good!

Oh boy. Veriovax, i owe you a huge apology for probably giving you a heart-attack!!

Yeah, IC coming from early '90s, but based on the date code of the pedal (#8700) it should have been produced much earlier (Oct/'79)...
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