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Thanks for all the suggestions and help. I put in a new diode and it seems have improved a lot. It's definitely more phaser-y, though not as much as I would expect, but I wonder if the phase 45 is just a bit less phasery than something like a phase 90?

New diode is giving 4.3 volts now. Here's the new voltages:

   ic1   ic2         q1   q2
1   4.37   4.36      g   2.1-2.45v   2.1-2.45v
2   4.37   4.36      s   4.36   4.36
3   4.15   4.35      d   4.36   4.36
4   0   0            
5   4.36   4.5 to 5v            
6   4.36   4.5 to 5v            
7   4.36   1.33 to 8.7v            
8   9.38   9.36            
                  
input    9.6               
d1   9.33   0            
r22   9.33               

d2 is giving me 3.5v, should I change that out for one that I know is 4.7v?

Thanks.

At C8 I'm getting 3.25~ to 5.1~ roughly.

Gates are about 1.45 to 1.75.

The JFETs I bought were sold to me as 1.305v and 1.311v.

Thank you.

Thanks for your suggestions.

I just added some solder to pads that looked like they needed it and re-flowed some. The trim pot has a very small sweet spot that gives a bit of phase, but it's very faint. It seems to be the same as before.

Hello. I'm currently making a 2015 smoothie and the phase is barely there. I've listened to a phase 45 on youtube and the difference is night and day. I'm using SMD "MMDF5457"s which I bought as a matched pair. I've checked the pinout and I'm 99% sure it's correct, especially after voltages.

I haven't started audio probing because I'm not sure exactly where I should be probing. The schematic is in the build doc here:

https://www.madbeanpedals.com/projects/archives/1590A/Smoothie.zip (2015 version)

Here are the voltages:

   IC1   IC2                 g           s           d
1   3.52   3.52      Q1   1.4-1.7   3.51   3.51
2   3.52   3.52               
3   3.35   3.52      Q2   1.42-1.7   3.52   3.52
4   0        0               
5   8.17   8.17               
6   3.52   1-7.5               
7   3.49   3.6-4.7               
8   3.51   3.1-5.2               

I've attached some pictures too, thank you.

[Smoothie]

Hello, I have a few questions about replacements and parts for three pedals I'm looking to make. I live in Korea so I've been looking to get everything from Tayda as shipping is cheap and quick, however for a few bits it seems I'll have to use Smallbear and local sites.

Smoothie
- Trim pot, the notes say that it should be a "Bourns 3362p" however I can't find those easily, but I can get this. I'm assuming the notes say the 3362p for the size and this replacement will do fine or am is there another reason that it says this part in particular?

- 2N5457 transistor replacement? I've read a few things and I've seen boards you can buy that allow you to solder a replacement transistor to it and use those, I've also read that you can use a BF224A instead. Does anyone know where I can get a replacement that are sold already tested and paired? Thanks.

Moodring
- Trim pot, same as for Smoothie.

- Belton brick, if anyone knows a place to get one of these in Korea / Asia shipped I'd be thankful. At the moment I'm looking to get it from Smallbear but it's looking like shipping is going to be 20usd.

Afterlife
- VTL5C3. Again, if anyone knows a place in Korea / Asia to get one I'd appreciate it, otherwise I'm going with Smallbear again.

Thanks a lot for reading this and for your help.