older silver morley pwf advice?

[pinkjimiphoton]

hi guys, got one of these in today,
it's got a weird issue...

the treadle wahs TWICE thru it's sweep!!

it's weird, from bass to half way, it wahs one way, and from there to full, it sounds like a crybaby...

since there's no pot, i don't know how it can do this?!?!?

any thoughts?

thanks!

[oldschoolanalog]

How many LDR's are in the thing?

[pinkjimiphoton]

haven't looked yet dave, gonna open her up...

i believe there may be a couple...do you think that's it?

i found a schem i think is right, but won't know til i crack it open:



i'm gonna go crack it open, take a couple pics and upload 'em...be back shortly bro

[oldschoolanalog]

Might be something as simple as the tape holding the black "shade" (or whatever they call it) in place is loose and creating a weird sweep.
Love those old Tel-Rays...

[pinkjimiphoton]

i guess you'd call it the "wiper"!! lol

sure enough...that was it!! a couple well- placed drops of crazy glue and a little re-alignment, she's good as new...thanks dave!!

here's some pron, a strip tease, and some surgery...lol





dead bugs....yech!!



the problem, just as OSA thought:



yuck...fulla dead bugs and beetles...



dissassembled:



fixed:



photoresistors heel down



photoresistors toe down



finished!!!



sounds great...tho when it was broken, it had a really cool sound, and a LOT more treble...
this is the warmest sounding morley i ever played thru!!

fwiw, these old tel ray morleys are hands down better sounding than the modern ones in my opinion...

appreciate the help bro!!!

[Dave Diamond]

Hi friends, maybe nobody is gonna awnser but ill like this morley for a DIY proyect, but i have my questions,  first i would like to now what the h.. is beside of th "Wah output, i saw that is like a resistor but i realy do not have idea, secund i like to now wich  the value of the transformer is ? and the code of the transistors and things like that i am do taking this on a seriously way it will be cool if you help me, Thanks

[Mark Hammer]

I picked up a busted Power Wah-Volume from the same series last year and "refreshed" it.  I also installed a Muff Fuzz with an additional stompswitch by the toe so it could be a fuzz-wah.  Nice pedals.

Just a tip: a guy I met at a gear show the other week mentioned that the old MOrleys use the same bulbs as found in instrument panels for small aircraft like CEssnas.  So if your bulb ever craps out, go to an aircraft supply place.

[pinkjimiphoton]

old-school hardware stores often have them, too. and amp pilot lights, i think they're # 47 if memory serves..

[petey twofinger]

save it for gout flare ups ?