Hi-res PDF:
H Dorf - Universal Vibrato - tube 1954.pdf
Radio-News-1954-04-R-OCR-Page-0052.jpg Universal Vibrato 2.jpg Dorf Tube Virbrato 3.jpg -R

Complete hi-res pdf: Everyday Electronics Dec 1971 Fuzz Box.pdf
142640209_10220749045688623_2740742540974954675_n.jpg 143036663_10220749045248612_5503533326748047052_n.jpg

Complete article, hi-res PDF: Radio Electronics Contructor Jan 81 Fuzzbox.pdf

RC-1981-01-OCR-Page-0034.jpg RC-1981-01-OCR-Page-0035.jpg RC-1981-01-OCR-Page-0036.jpg RC-1981-01-OCR-Page-0037.jpg RC-1981-01-OCR-Page-0038.jpg

Complete article in PDF: PAiA_Phlanger.pdf

PAiA_Phlanger01.jpg

This came up in the facebook group Vintage Guitar Electronics from Magazines.

There are not too many tube guitar amp designs to be found in vintage magazines. So this really raised my brow - this whole issue of Practical Wireless from May 1964 is full of guitar related ads too... and it's all thanks to the boys from Liverpool of course...

EF86s tube, 807 power tubes...

schematic pdf: PW_64_BP.pdf
article pdf: Practical Wireless PW 35W guitar amp.pdf

PW_64_BP_01.jpg PW_64_BP_015.jpg...

Full article hi-res pdf: Unimod sound effect generator.pdf
Poptronics-1981-02-OCR-Page-0061.jpg
Poptronics-1981-02-OCR-Page-0062.jpg
Poptronics-1981-02-OCR-Page-0063.jpg

All articles in one PDF: Ernestfuzz def.pdf

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Use these schematics as a starting point for your own creative guitar pedal projects. We plan to expand these pages with applications beyond compressor/ limiters. Check back often for new designs and current revision levels.

1) 4315-based Battery-Powered One Knob Squeezer
2) 4315-based Guitar Compressor with Variable Attack and Release
3) 4316-based Simple Limiter
4) 4316-based Guitar Compressor
5) 4316-based Battery-Powered One Knob Squeezer
6) 4320-based Battery-Powered Compressor
7)...

I've always liked this Popular Electronic Fuzz circuit because it had the waveforms:
Build a Fuzz Vox for Electric Guitar by Anthony Leo, February 1968.

Feel free to move this if U want, modman.
I have the three other pages also (entire article in jpg) if anyone wants....

keep on fuzzin'

PE_Feb_1968_pg41fuzzbox.jpg

PE_Feb_1968_pg42.jpg

Radio-Electronics-1969-12-p40.png Radio-Electronics-1969-12-p41.png

Poptronics-1962-07-Transistorized Tremolo.zip

Poptronics-1962-07-OCR-Page-0051.jpg Poptronics-1962-07-OCR-Page-0052.jpg Poptronics-1962-07-OCR-Page-0053.jpg Poptronics-1962-07-OCR-Page-0054.jpg

Complete article in PDF: Everyday-Electronics-1973-01 Fuzz Treble Booster.pdf

Everyday-Electronics-1973-01-OCR-Page-0038.jpg

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im_75_08-22.jpg

A great site, it seems, but not on a secure server...

Electronics-Today-1985-12 DI compression gate.jpg

Full article in PDF:
Electronics-Today-1985-12 DI compression gate.pdf

Another stompbox book found over the net.

kupdf.net_practical-electronic-musical-effects-units.pdf

practical-electronic-musical-effects-units contents.jpg

From the same magazine:
reticon1024.jpg

Complete article with schematics and layout: Bucket Brigade Poptronics 1976 june.pdf

The attached spreadsheet shows details of a Chorus/Flanger published as per the Thread Title. I can't find a decent Schematic Capture package I can use, as they're too damned complicated! Therefore, I've used a Spreadsheet set up as squared paper.
I have omitted the battery and power input circuitry as it's way too complicated, as is the input jack-socket arrangement.
I have to say that the circuit looks odd - I can't work out how the MN3102 frequency is derived. I would expect a C-R...

Pop-1969-05-OCR-Page-0057.jpg Pop-1969-05-OCR-Page-0058.jpg Pop-1969-05-OCR-Page-0092.jpg Screen Shot 2020-07-14 at 18.54.09.png

The complete referenced article is here: Add Comply To Your Tape Recorder.pdf

Poptronics-1967-01-OCR-Page-0081.jpg
Poptronics-1967-01-OCR-Page-0084.jpg

PDF: Poptronics-1967-01-OCR-Page-0081.pdf
Poptronics-1967-01-OCR-Page-0084.pdf

Full article in hi res PDF: Vibrato Simulator def pdf.pdf

Vibratosimulator01.jpg Vibratosimulator02.jpg Electronics-World-1962-11-OCR-Page-0044.pdf Electronics-World-1962-11-OCR-Page-0045.pdf

Full article in pdf: Fuzzboxforswingers.pdf
Even in 1968, you could download (with paper en pencil) a fuzz schematic in the local public library:

fuzzswingers01.jpg fuzzswingers02.jpg fuzzswingers03.jpg

But you could also just order a complete fuzz kit... but that's for nerds, not for the swingers ;-)
heathkitfuzz1967.jpg

Hey Fellow Stompboxers,I thought I would contribute a link for a download for this classic tome from Craig Anderton,which I just found,I've been after this one for a while... :)

It is in PDF form,so you don't need to unzip it first,if you click on the free download link and it says something like Your last download was 15 minutes ago ,just wait and you will be able to download it a bit later... :)

File size is 44.8Mb

Think for many people this will be fun to read!

Product Description: Imagine you're the world's biggest Beatles fan and you've just snuck into John Lennon's hotel room. But instead of being thrown out, inexplicably you're invited to spend the day with your idol. That's exactly what happened to fourteen-year-old Jerry Levitan in 1969. After hearing John was in Toronto for a bed in, Jerry tracked him down at the King Edward Hotel and convinced the world's biggest rock star to sit down for an...