Old circuits book (part) inside, in spanish

[Morocotopo]

 Hi, I found this photocopies while cleaning my studio/lab/pile of stuff. It´s in spanish. Schems: tremolo/vibrato, fuzz, octave down, attack delay, tone control, electronic perc, "sonido ondulante o waa-waa-waa" ( ), etc. It looks like a translation from a book originally in english. Loks very old (early 70´s?), mostly Germanium transistors. Don´t have the slightest idea where it came from. 15 Mb pdf, kind of big. Maybe someone finds it useful.
Let´s see if I get the link stuff right:
Download CIRCUITOS_P_INSTR_ELEC.pdf

Morocotopo

[toneman]

Looks like an old spanish version of Popular Electronics.
The 4 fuzz waveforms, I have seen before in an old Pop Elecronics article.
The transistors are drawn VERY strangely.
afn
T

[markm]

Thanks for the info. 

[Kornell]

Thanks! Gracias! 

[Morocotopo]

So, who is going to build the schems and tell the rest of us if they are any good?



Morocotopo