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Laurie
Double Platinum Member
Canada
4854 Posts |
 Posted - 11/06/2009 : 18:36:51
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quote:
Originally posted by Scarymonsta
The screen printing kit gives much better results than I had ever hoped for, easy to use too.
I've been looking for an email you sent me with the details of the screen kit you use... but cant find it! Can you pleat give me the details again? Thanks! |
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stinkfoot
Silver Member
Sweden
181 Posts |
Posted - 11/07/2009 : 13:11:57
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Nice job, Laurie! I like the neat wiring, with the power/LED wiring mostly in their own space, apart from the signal wires.
Personally, I'd have used the X-pattern on the A/B section, to shunt the unused output to ground. That'd let you remove the 1M resistors, which lowers the amps' input impedance to half its value. Assuming both amps are 1M input Z, you'll see 500K in A or B mode, and 250K in Y. Not a problem if you have a fully buffered Boss pedal in front of the ABY - which, considering where we are, might be rather likely - but anyway... 
I attached an ABY schematic I found on my hd (it'd been wiser to read the FAQ on posting images first, but I got it in the end  ). I don't know who made it (just that it wasn't me), so if it's yours and you don't like me posting it, let me know and I'll take it down. The LED bit needs to be figured out, obviously. IIRC, the last time I built one, I used a dual colour LED for the A/B bit and a single "Y" LED - that way, I could see which mode will be active when I deselect "Y".
/Andreas |
Edited by - stinkfoot on 11/07/2009 13:28:21 |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 11/07/2009 : 16:19:35
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THanks Andreas! I did consider digging this one out (even started on the internet search)... But, as you rightly surmised, I run a pedal in front of it (my FA-1 "sequel/clone" HZD pedal), so I got lazy 
I also like to switch the ground wire - leaving the grounds common lets some bleed through in my rig. Hmmm... I guess I could use a 4-way switch  ... Oh wait, that's not so easy. The schematic really does need common ground.
I might rewire it next time I adjust the pedal config. Thanks for the pic! Really do appreciate it!
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Edited by - Laurie on 11/07/2009 16:46:18 |
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stinkfoot
Silver Member
Sweden
181 Posts |
Posted - 11/07/2009 : 22:58:52
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Yes, I guessed there'd be a Boss pedal somewhere in front of the ABY - it's Bossarea, after all
/Andreas |
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A-B-Y pedal
