Loop problem

[dcribbs1412]

Thought I had my 70's style build ready to go...but
When playing without any fx in the loop both channels work fine
but when I plugged in a fx unit only the clean channel works
in other words the volume works on clean.....but when I switch to OD
there is sound but the OD controls do not do anything.
I've been trying different ways of wiring the OD relay
here's a pic of what I have now
1 from loop
2 220K/clean master 1
3 nothing?
4 ground
5 OD 2 wiper
6 clean master 3 and .01 cap

Any suggestions are greatly appreciated.

Thanks
Darin

[martin manning]

I don't know why having something in the loop jacks would make any difference, since all the relay is doing is selecting which signal (Clean master wiper or OD master wiper) is sent to the loop input. However, I don't think you have the relay wired correctly.

Looking at the hybrid layout I get the following relay board connections, which look to be correct for separate master volume functionality. Relay board numbering is as shown in your picture L to R, pot lugs are 1 CCW, 2 Wiper, 3 CW (L to R as installed with "lugs up," looking from the back).

1 To Loop Input
2 Clean Master 1 and OD1 input
3 Clean Master 2
4 Ground
5 OD Master 2
6 Clean Master 3 and Clean2 output

[amplifiednation]

Are you using the clean master volume? I still have mine wired that way. I can't make up my mind if I like it or not.

This is how I wired it.

[dcribbs1412]

I don't know why having something in the loop jacks would make any difference, since all the relay is doing is selecting which signal (Clean master wiper or OD master wiper) is sent to the loop input. However, I don't think you have the relay wired correctly.

Looking at the hybrid layout I get the following relay board connections, which look to be correct for separate master volume functionality. Relay board numbering is as shown in your picture L to R, pot lugs are 1 CCW, 2 Wiper, 3 CW (L to R as installed with "lugs up," looking from the back).

1 To Loop Input
2 Clean Master 1 and OD1 input
3 Clean Master 2
4 Ground
5 OD Master 2
6 Clean Master 3 and Clean2 output

Thanks Martin
I was looking at this layout to wire up the loop
I have the master going to the loops .05 like this...
if wiring it like the hybrid ...what would go there?
appreciate your time

Darin

[martin manning]

Let me confirm- you want separate masters like the hybrid, but you are adding the built-in loop? If so, then just run the output wire (relay board eyelet 1) to the loop's input, which is the 0.05u on the board which then goes to the driver stage's grid. Or am I missing something?

[dcribbs1412]

Let me confirm- you want separate masters like the hybrid, but you are adding the built-in loop? If so, then just run the output wire (relay board eyelet 1) to the loop's input, which is the 0.05u on the board which then goes to the driver stage's grid. Or am I missing something?

Thanks Martin,
you were spot on...rewired the relay as per your suggestions...and all is good
although I have a pop when engaging the OD relay. I'll take a closer look at that next. edit...got it no more pops
Apologize as I have a tendency to over-complicate simple things.
Very much appreciate your time.

Darin

[dcribbs1412]

Are you using the clean master volume? I still have mine wired that way. I can't make up my mind if I like it or not.

This is how I wired it.

Hi Taylor
thanks for the info
So far I'm liking the clean master...
I can seem to get fairly decent level control of clean to OD,
has to be fairly loud , but can get quite a few different tones
from this circuit. BTW did you get your PAB working ?

Darin

[amplifiednation]

No I haven't had time to pop the hood. I still need to connect my FET as well.

What I can say is that the amp rocks! Great tone, lots of bite, I can get some really cool honky les paul stuff going on. Its not as smooth as my 102, its more raw. I need to try some different things to see if I can improve even further, but I'm pretty happy with the amp. I just played it for about an hour!

[dcribbs1412]

No I haven't had time to pop the hood. I still need to connect my FET as well.

What I can say is that the amp rocks! Great tone, lots of bite, I can get some really cool honky les paul stuff going on. Its not as smooth as my 102, its more raw. I need to try some different things to see if I can improve even further, but I'm pretty happy with the amp. I just played it for about an hour!

I hear you my friend...just played mine for a few.
I still need to adjust the PAB a little...I really recommend the FET when you get a chance it really adds to the OD and clean tones.(really like it on the footswitch)
I've had it in and out of the cab about
5 times this weekend. I'm going to enjoy it like it is until I can't take it and open her back up later. I really need to learn to record some decent clips for critiquing.


Darin

[amplifiednation]

The best is recording videos then you can creepily watch yourself jam out.

What did you use for grids? CC or CF?

[dcribbs1412]

The best is recording videos then you can creepily watch yourself jam out.

What did you use for grids? CC or CF?

I was thinking about a simple video camera...any suggestions.
Probably would not record myself playing(way too creepy), but it might make a simple/easy way to get an idea of how an amp looks and sounds.

I used some 1/2 watt 56K Piher's CF on the grids. I've seen some using
68K also...not sure if I'll experiment more or not. You tried any other types or values?

Darin

[amplifiednation]

I did piher 22k on v1a then 47k beyschlags on the others. I want to try some NOS CC, Tony said they can be cool. I want to try some NFB variations as well. Its almost time to start soldering again.