Davidoff Library

Free online ressources on guitars, amps, effects, guitar technique and more. Dedicated to the fond memory of its founder SPeter Davidoff.

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YERASOV schematics

Last post by GodSaveMetal « 12 Feb 2016, 21:35
Replies: 23
by modman » 14 Jan 2008, 19:28
1

2
Rating: 1.1%

Morecowbell, thanks for those great links you posted, but if they are all avaible from one location, it's better to just post that one link. If people are interested in discussion about this or that box, that can become a separate thread.

They are all in the $59-159 price range! Anybody has more info on this brand, we're still waiting for the english version of the website..
23 Replies

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View the latest post Re: YERASOV schematics
Last post GodSaveMetal
12 Feb 2016, 21:35
NOBELS schematics

Last post by mozwell « 15 Dec 2010, 03:56
Replies: 2
by Sock Puppet » 03 Dec 2007, 18:50

For free, from their site:

S.

2 Replies

40400 Views

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Last post mozwell
15 Dec 2010, 03:56

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Graphic EQ, Hobby Electronics, December 1981 🇬🇧

Last post by Flaconsius « 12 Feb 2023, 16:21
Replies: 1
by modman » 29 May 2022, 12:36

Rating: 1.1%

PDF: Hobby-Electronics-1981-12-S-OCR Graphic EQ.pdf

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Hobby-Electronics-1981-12-S-OCR Graphic EQ 1.jpg Hobby-Electronics-1981-12-S-OCR Graphic EQ 2.jpg Hobby-Electronics-1981-12-S-OCR Graphic EQ 3.jpg Hobby-Electronics-1981-12-S-OCR Graphic EQ 4.jpg

1 Replies

631 Views

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Last post Flaconsius
12 Feb 2023, 16:21
Audio Phaser, Electronics Today International, September 1976

Last post by BMS1971 « 19 Jan 2023, 18:08
Replies: 27
by modman » 09 Jul 2022, 18:22
1

2
Rating: 7.1%

PDF: eti447.pdf

eti447 1.jpg eti447 2.jpg eti447 3.jpg eti447 4.jpg eti447 5.jpg eti447 6.jpg
27 Replies

2696 Views

View the latest post Re: Audio Phaser, Electronic …
Last post BMS1971
19 Jan 2023, 18:08
R.A. Penfold, Phaser Sound Effect, Everyday Electronics, January 1981 🇬🇧

Last post by Frank_NH « 17 Jan 2023, 13:23
Replies: 4
by modman » 06 Apr 2021, 07:52

Rating: 1.5%

Everyday-Electronics-1981-01-OCR-Page-0042.jpg Everyday-Electronics-1981-01-OCR-Page-0043.jpg Everyday-Electronics-1981-01-OCR-Page-0044.jpg Everyday-Electronics-1981-01-OCR-Page-0045.jpg

4 Replies

1336 Views

View the latest post Re: R.A. Penfold, Phaser Sou …
Last post Frank_NH
17 Jan 2023, 13:23
1 watt transistor amplifier for electric guitar, Radio Plans, January 1967 🇫🇷

Last post by Axldeziak « 06 Jan 2023, 17:57
Replies: 1
by modman » 06 Jan 2023, 14:19

Rating: 1.1%

The article is missing a page -- that did not get scanned. The schematic and layouts are readable, however.
using SFT571, SFT525, SFT377, SFT367

PDF: RP231_01-1967_A_REFAIRE Germanium 1W amp.pdf

RP231_01-1967_A_REFAIRE Germanium 1W amp 02.jpg RP231_01-1967_A_REFAIRE Germanium 1W amp 03.jpg

1 Replies

419 Views

View the latest post Re: 1 watt transistor amplif …
Last post Axldeziak
06 Jan 2023, 17:57
Craig Anderton, Build a Wah/Anti-Wah Pedal, in: Polyphony, February 1976 🇺🇸

Last post by mozz « 31 Dec 2022, 22:02
Replies: 4
by modman » 29 Dec 2022, 12:37

Rating: 1.9%

PDF: pl_76_04 Wah Antiwah.pdf

pl_76_04 Wah Antiwah 01.jpg pl_76_04 Wah Antiwah 02.jpg

pl_76_04 Wah Antiwah.jpg

4 Replies

586 Views

View the latest post Re: Craig Anderton, Build a …
Last post mozz
31 Dec 2022, 22:02
Pédale pour guitar électrique limiteur/sustain, Haut-Parleur, December 1986 🇫🇷

Last post by Manfred « 20 Dec 2022, 05:29
Replies: 1
by modman » 19 Dec 2022, 21:14

Rating: 0.9%

PDF: HautParleur_1735dec86 Limitersustain.pdf

HautParleur_1735dec86 01 Limitersustain.jpg HautParleur_1735dec86 02 Limitersustain.jpg

1 Replies

380 Views

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Last post Manfred
20 Dec 2022, 05:29
N. Williams & J Leo, Organ Tremulant Vibrato Phaser, Electronics Australia, March 1969 🇦🇺

Last post by BMS1971 « 30 Nov 2022, 15:09
Replies: 4
by modman » 14 Jan 2021, 18:26

Rating: 2.6%

Full hi-res article in PDF: Phase Vibrato Phaser Electronics Australia March 1969.pdf

electronics_australia-1969_03_01.jpg electronics_australia-1969_03_04.jpg electronics_australia-1969_03_05.jpg

4 Replies

2200 Views

View the latest post Re: N. Williams & J Leo, …
Last post BMS1971
30 Nov 2022, 15:09
Générateur de Distorsion, in: Haut-Parleur, April 1968 🇫🇷

Last post by modman « 22 Oct 2022, 23:22

by modman » 22 Oct 2022, 23:22

Rating: 0.6%

Le HAUT-PARLEUR 18 Avril 1968 Générateur de distorsion.pdf

Le HAUT-PARLEUR 18 Avril 1968 Générateur de distorsion.jpg

0 Replies

280 Views

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Last post modman
22 Oct 2022, 23:22
A. Barat, Chambre D'echo + 30 Effets, Le Haut-Parleur, April 1966 🇫🇷

Last post by modman « 22 Oct 2022, 22:03

by modman » 22 Oct 2022, 22:03

Rating: 0.4%

PDF: RP219_01-1966_A_REFAIRE Reverberation modulation.pdf

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01 RP219_01-1966_A_REFAIRE Reverberation modulation.jpg 02 RP219_01-1966_A_REFAIRE Reverberation modulation.jpg 03 RP219_01-1966_A_REFAIRE Reverberation modulation.jpg 04 RP219_01-1966_A_REFAIRE Reverberation modulation.jpg 05 RP219_01-1966_A_REFAIRE Reverberation modulation.jpg 06 RP219_01-1966_A_REFAIRE Reverberation modulation.jpg

0 Replies

232 Views

View the latest post A. Barat, Chambre D'echo + 3 …
Last post modman
22 Oct 2022, 22:03
Herb Friedman, 97-cent Hard Rock Fuzz Box, in: Science and Electronics, November 1969 🇺🇸

Last post by bmxguitarsbmx « 21 Oct 2022, 00:40
Replies: 3
by modman » 20 Oct 2022, 11:21

Rating: 0.4%

PDF: Science-and-Electronics-1969-10-11 97 cent Fuzz + Superfuzz.pdf

Nothing new under this sun: passive diode clipping to add to your tube amp. Published two years earlier in Craig Anderton, Build a Fuzzbox for under $3, Popular Electronics, January 1967

More interesting is that the article is directly followed by the discussion of a new commercial fuzzbox, the Univox - Superfuzz . The conclusion is absolutely baffling, but that seems to have been the whole idea.

Screen Shot 2022-10-20...

3 Replies

386 Views

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Last post bmxguitarsbmx
21 Oct 2022, 00:40
Herb Friedman, Universal Reverb, in: Radio TV Experimenter, December 1967 🇺🇸

Last post by modman « 19 Oct 2022, 20:10

by modman » 19 Oct 2022, 20:10

Rating: 0.6%

Radio-TV-Experimenter-1967-12-01 Universal Reverb.pdf

01 Radio-TV-Experimenter-1967-12-01 Universal Reverb.jpg 02 Radio-TV-Experimenter-1967-12-01 Universal Reverb.jpg 03 Radio-TV-Experimenter-1967-12-01 Universal Reverb.jpg 04 Radio-TV-Experimenter-1967-12-01 Universal Reverb.jpg 05 Radio-TV-Experimenter-1967-12-01 Universal Reverb.jpg

0 Replies

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View the latest post Herb Friedman, Universal Rev …
Last post modman
19 Oct 2022, 20:10
Daniel Meyer, Reverb Adapter, in: Popular Electronics, January 1968 🇺🇸

Last post by modman « 19 Oct 2022, 14:25

by modman » 19 Oct 2022, 14:25

Rating: 0.6%

PDF Poptronics-1968-01 Meyer Reverb Adapter.pdf

01 Poptronics-1968-01 Meyer Reverb Adapter.jpg 02 Poptronics-1968-01 Meyer Reverb Adapter.jpg 03 Poptronics-1968-01 Meyer Reverb Adapter.jpg 04 Poptronics-1968-01 Meyer Reverb Adapter.jpg

0 Replies

283 Views

View the latest post Daniel Meyer, Reverb Adapter …
Last post modman
19 Oct 2022, 14:25
Peter F. Bretherick, Simple Echo Chamber, in: Radio Constructor, March 1963 🇬🇧

Last post by modman « 19 Oct 2022, 12:13

by modman » 19 Oct 2022, 12:13

Rating: 0.2%

PDF: RC-1963-03 Simple Echo Chamber.pdf

01 RC-1963-03 Simple Echo Chamber.jpg 02 RC-1963-03 Simple Echo Chamber.jpg 03 RC-1963-03 Simple Echo Chamber.jpg

0 Replies

221 Views

View the latest post Peter F. Bretherick, Simple …
Last post modman
19 Oct 2022, 12:13
G. M. Lewis, A Simple Reverb Unit, in: Radio Electronics, January 1962 🇺🇸

Last post by modman « 19 Oct 2022, 12:08

by modman » 19 Oct 2022, 12:08

Rating: 0.2%

PDF: Radio-Electronics-1962-01 Reverberation.pdf

01 Radio-Electronics-1962-01 Reverberation.jpg 02 Radio-Electronics-1962-01 Reverberation.jpg 03 Radio-Electronics-1962-01 Reverberation.jpg

0 Replies

244 Views

View the latest post G. M. Lewis, A Simple Reverb …
Last post modman
19 Oct 2022, 12:08
John Milder, Controlled Reverberation, in: Popular Electronics, December 1960 🇺🇸

Last post by modman « 19 Oct 2022, 12:04

by modman » 19 Oct 2022, 12:04

Rating: 0.4%

Full article in PDF: Pop-1960-12 Controlled Reverberation.pdf

Pop-1960-12 Controlled Reverberation schematic.jpg

0 Replies

177 Views

View the latest post John Milder, Controlled Reve …
Last post modman
19 Oct 2022, 12:04
William R. Shippee, Simplified Tremolo, Electronics World, October 1966 🇺🇸

Last post by modman « 19 Oct 2022, 08:35

by modman » 19 Oct 2022, 08:35

Rating: 0.6%

PDF: Electronics-World-1966-10 Simplified Tremolo.pdf

Electronics World Vibrato.jpg

0 Replies

275 Views

View the latest post William R. Shippee, Simplifi …
Last post modman
19 Oct 2022, 08:35
M. Scibor-Rylski, Fuzz Box, in: Practical Electronics, July 1966 🇬🇧

Last post by SN76477 « 16 Oct 2022, 18:45
Replies: 4
by modman » 06 Jul 2021, 00:47

Rating: 1.7%

Hi-res PDF with cover: Practical-Electronics-1966-07 fuzz box.pdf

Practical-Electronics-1966-07 fuzz box.jpg Practical-Electronics-1966-07 fuzz box 2.jpg Practical-Electronics-1966-07 fuzz box 3.jpg Practical-Electronics-1966-07 fuzz box 4.jpg

4 Replies

1802 Views

View the latest post Re: M. Scibor-Rylski, Fuzz B …
Last post SN76477
16 Oct 2022, 18:45
Daniel M. Costigan, Build This Simple Echo Unit, in: Radio Electronics, February 1956 🇺🇸

Last post by cspar « 15 Oct 2022, 20:35
Replies: 1
by modman » 15 Oct 2022, 13:21

Rating: 0.2%

PDF: Radio-Electronics-1956-02 Tube Echo Unit.pdf

Radio-Electronics-1956-02 Tube Echo Unit 01.jpg Radio-Electronics-1956-02 Tube Echo Unit 02.jpg

1 Replies

341 Views

View the latest post Re: Daniel M. Costigan, Buil …
Last post cspar
15 Oct 2022, 20:35
Vibrato Amplifier for Electronic Guitar, in: Radio Electronics, February 1952 🇺🇸

Last post by modman « 14 Oct 2022, 21:46

by modman » 14 Oct 2022, 21:46

Rating: 1.1%

PDF: Radio-Electronics-1951-02-OCR-Page-0082.pdf

Radio-Electronics-1951-02-OCR-Page-0082.jpg

0 Replies

314 Views

View the latest post Vibrato Amplifier for Electr …
Last post modman
14 Oct 2022, 21:46
W.T. Prewitt, A 50W Guitar Booster, in: Radio Electronics, November 1966 🇺🇸

Last post by modman « 14 Oct 2022, 21:39

by modman » 14 Oct 2022, 21:39

Rating: 0.6%

PDF: Radio-Electronics-1966-11 Thunderbox Booster.pdf

Radio-Electronics-1966-11 Thunderbox Booster 01.jpg Radio-Electronics-1966-11 Thunderbox Booster 02.jpg

0 Replies

281 Views

View the latest post W.T. Prewitt, A 50W Guitar B …
Last post modman
14 Oct 2022, 21:39
Paul Coster, Phase Four, in: Hobby Electronics, December 1982 🇬🇧

Last post by modman « 13 Oct 2022, 19:27

by modman » 13 Oct 2022, 19:27

Rating: 1.3%

PDF: Hobby-Electronics-1982-12-S-OCR Phase Four.pdf

01 Hobby-Electronics-1982-12-S-OCR Phase Four.jpg 02 Hobby-Electronics-1982-12-S-OCR Phase Four.jpg 03 Hobby-Electronics-1982-12-S-OCR Phase Four.jpg 04 Hobby-Electronics-1982-12-S-OCR Phase Four.jpg 05 Hobby-Electronics-1982-12-S-OCR Phase Four.jpg

0 Replies

453 Views

View the latest post Paul Coster, Phase Four, in: …
Last post modman
13 Oct 2022, 19:27
Steve Daniels, Unijunction Tremolo, in: Electronics Hobbyist, Spring-Summer 1971 🇺🇸

Last post by ppluis0 « 11 Oct 2022, 17:52
Replies: 6
by modman » 06 Oct 2022, 15:22

Rating: 2.2%

PDF: Unijunction Tremolo 1971.pdf

01 Unijunction Tremolo 1971.jpg
02 Unijunction Tremolo 1971.jpg
03Unijunction Tremolo 1971.jpg

6 Replies

523 Views

View the latest post Re: Steve Daniels, Unijuncti …
Last post ppluis0
11 Oct 2022, 17:52
Charles Blakey, Solid State Reverb Unit, Electronics Today International, April 1980 🇦🇺

Last post by wernersaurus « 10 Oct 2022, 21:27
Replies: 2
by modman » 09 Jul 2022, 12:28

Rating: 0.9%

PDF 80-17_ETI.pdf

80-17_ETI SS reverb 1.jpg
80-17_ETI SS reverb 02.jpg 80-17_ETI SS reverb 3.jpg 80-17_ETI SS reverb 4.jpg 80-17_ETI SS reverb 05.jpg

2 Replies

557 Views

View the latest post Re: Charles Blakey, Solid St …
Last post wernersaurus
10 Oct 2022, 21:27
Ken Willmott, Build a Guitar Preamp Distortion Box, in: Popular Electronics, August 1995 🇺🇸

Last post by BMS1971 « 08 Oct 2022, 08:22
Replies: 5
by modman » 15 Feb 2022, 10:09

Rating: 2.2%

PDF: PE-1995-08 distortion Box.pdf

PE-1995-08 distortion Box 01.jpg PE-1995-08 distortion Box 02.jpg PE-1995-08 distortion Box 03.jpg

5 Replies

903 Views

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Last post BMS1971
08 Oct 2022, 08:22
D. Gibbs & I.M. Shaw, Guitar Sustain Unit, Practical Electronics, October 1977 🇬🇧

Last post by mictester « 02 Oct 2022, 22:57
Replies: 3
by modman » 07 Jul 2021, 10:39

Rating: 1.3%

Full article in PDF: Practical-Electronics-1977-10 Sustain.pdf

Practical-Electronics-1977-10 Sustain 01.jpg Practical-Electronics-1977-10 Sustain 02.jpg Practical-Electronics-1977-10 Sustain 03.jpg Practical-Electronics-1977-10 Sustain 04.jpg

3 Replies

1399 Views

View the latest post Re: D. Gibbs & I.M. Shaw …
Last post mictester
02 Oct 2022, 22:57

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