Schematic is avaiable HERE.
Hey fuzzhead anyway to do this layout with a LM13700 instead of the 3080?
This is definitely interesting. It seems the 3080 chips have been reissued too.
hi, I've gone through it, node by node, and found everything perfect (matching the schematic)....an obvious one: D1 to be renamed to D3..and a possible error:the jumper from 11C to 1E seems to me as a fault...just look..._ _ _ _ _+1: and I don't understand the 7809 regulator... on the schematic, toogiven that DC in = 9v...I mean, to get 9 volts, the input voltage should be 12v, or at least 11.5 :)I think, when I build this, I'll use 12v, and that would be it...(I'll get back to this in late April)
as to the 78L09, here is a great thread:https://www.freestompboxes.org/viewtopic.php?f=1&p=282273#p282273the bottom line: USE 12v DC regulated, OR an unregulated "9v" which outputs 15v without a load... // OR an EHX 9v adapter, which is the latter...BUT then, if 12 volts is the DC input, that CLR resistor to the bypass LED+ might have a function, again, and should be given a different value...
PS:the entire thread is cool, in the above link I accidentally embedded a target (#p282273) where the link will land, but it is NOT that post that is relevant...in short: read the thread, or if you only have time for one post, read j_flanders'https://www.freestompboxes.org/viewtopic.php?p=282270#p282270but read al of it, it's not much at all :)https://www.freestompboxes.org/viewtopic.php?t=30799
Hey fuzzhead anyway to do this layout with a LM13700 instead of the 3080?
ReplyDeleteThis is definitely interesting. It seems the 3080 chips have been reissued too.
ReplyDeletehi,
ReplyDeleteI've gone through it, node by node, and found everything perfect (matching the schematic)
....
an obvious one: D1 to be renamed to D3..
and a possible error:
the jumper from 11C to 1E seems to me as a fault...
just look...
_ _ _ _ _
+1: and I don't understand the 7809 regulator... on the schematic, too
given that DC in = 9v...
I mean, to get 9 volts, the input voltage should be 12v, or at least 11.5 :)
I think, when I build this, I'll use 12v, and that would be it...
(I'll get back to this in late April)
as to the 78L09, here is a great thread:
ReplyDeletehttps://www.freestompboxes.org/viewtopic.php?f=1&p=282273#p282273
the bottom line:
USE 12v DC regulated,
OR an unregulated "9v" which outputs 15v without a load...
// OR an EHX 9v adapter, which is the latter...
BUT then, if 12 volts is the DC input, that CLR resistor to the
bypass LED+ might have a function, again, and should be given a different value...
PS:
ReplyDeletethe entire thread is cool, in the above link I accidentally embedded a target (#p282273) where the link will land, but it is NOT that post that is relevant...
in short:
read the thread, or if you only have time for one post,
read j_flanders'
https://www.freestompboxes.org/viewtopic.php?p=282270#p282270
but read al of it, it's not much at all :)
https://www.freestompboxes.org/viewtopic.php?t=30799