The original Friedman BE OD Deluxe has an led next to each row of pots to indicate which channel is engaged. However, the Thermionic Deluxe only has one LED positioned over the footswitch. Can I swap the Red LED for a bi-color led without having to change anything other than possibly the the LEDR? Has anyone else come up with a solution for this?
Thermionic Deluxe Channel LED
- Thread starter Fresh1492
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mjh36
Well-known member
Hey I have a solution. I tried a bi-color LED but didn't like the way it looked. So I used a clear RGB LED. Should be this common anode one:
I liked the bigger 5mm size. I cut the legs shorter and soldered wires to them with heatshrink to make it a little easier because it's a tight space. The anode and one color go to the board, then I ran another color to the stompswitch. I didn't use the red so I clipped/covered that leg.
The blue/green lights always stay on even in bypass so you can see what channel you'll be in when you switch the pedal on, I used a yellow one for that.
I liked the bigger 5mm size. I cut the legs shorter and soldered wires to them with heatshrink to make it a little easier because it's a tight space. The anode and one color go to the board, then I ran another color to the stompswitch. I didn't use the red so I clipped/covered that leg.
The blue/green lights always stay on even in bypass so you can see what channel you'll be in when you switch the pedal on, I used a yellow one for that.
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That's an interesting solution. I'll do that if I can't get this to work:
I was thinking about it more today, and I might try connecting it to the first resistor in each channel. So, connect the Cathode to the LED spot on the PCB, then connect each anode to the R1B and R1A spots. I'm not sure if that would work. My thought behind it is, the 3PDT is selectively providing power to each channel, so if I wire one anode to one channel and one anode to the other, it should toggle the light respectively.
I was thinking about it more today, and I might try connecting it to the first resistor in each channel. So, connect the Cathode to the LED spot on the PCB, then connect each anode to the R1B and R1A spots. I'm not sure if that would work. My thought behind it is, the 3PDT is selectively providing power to each channel, so if I wire one anode to one channel and one anode to the other, it should toggle the light respectively.
Feral Feline
Well-known member
Most bicolour LEDs are COMMON CATHODE, but...
If you get an LED that's COMMON ANODE, then you can easily wire up your channel indication. Only one CLR — no headaches as the cathodes are doing the switcheroo.
I got some from GuitarPCB, which carries green/blue (my preferred channel colours), red/blue, and red/green — Alas, last time I checked Barry was out of stock. However, I've bought a bunch from various places, can't remember exactly all where, but I bet you can hunt some down — just make sure you get COMMON ANODE.
Oh, and Barry has a sale on 3PDT daughterboards made specifically for the common anode, I don't know if PedalPCB has one similar or not.
Robert
Reverse Engineer
Tayda has both.
Not yet, but wouldn't be a bad thing to add soon.
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