Search found 243 matches
- 11 May 2022, 18:49
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: OT: Is DIYSB down?
- Replies: 7
- Views: 890
Re: OT: Is DIYSB down?
yep. working now.
- 04 Nov 2021, 15:14
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Dewtron - Fuzzorama
- Replies: 3
- Views: 923
Re: Dewtron - Fuzzorama
so, did u get a schematic from this?? Is it germanium??
google found this:
http://elgauchoandres.blogspot.com/2010/
(same link as above)
google found this:
http://elgauchoandres.blogspot.com/2010/
(same link as above)
- 25 Jun 2021, 21:15
- Forum: Davidoff Library
- Topic: Forrest Mims' notebooks 🇺🇸
- Replies: 3
- Views: 1304
Re: Forrest Mims" notebooks new + marston
ok
cant remove duplicate uploads
here is the 26page -----
plus his communications and opto notebooks.
enjoy!
note to moderators:
feel free to remove duplcates....
cant remove duplicate uploads
here is the 26page -----
plus his communications and opto notebooks.
enjoy!
note to moderators:
feel free to remove duplcates....
- 25 Jun 2021, 21:09
- Forum: Davidoff Library
- Topic: Forrest Mims' notebooks 🇺🇸
- Replies: 3
- Views: 1304
Re: Forrest Mims" notebooks new + marston
ok. one opamp book was 26pages other was 52.
guess i uploaded the 52x2 oops :-p
guess i uploaded the 52x2 oops :-p
- 25 Jun 2021, 16:13
- Forum: Davidoff Library
- Topic: Forrest Mims' notebooks 🇺🇸
- Replies: 3
- Views: 1304
Forrest Mims' notebooks 🇺🇸
Here are old Radio Shack Forrest Mims Engineer's Notebooks Some sample pages: Forrest Mims-Engineer's Mini-Notebook Op Amp Ic Circuits (Radio Shack).jpg Forrest Mims - Basic Semiconductor Circuits.jpg Forrest Mims - Basic Semiconductor Circuits 02.jpg Forrest Mims - Basic Semiconductor Circuits 03.j...
- 20 Apr 2021, 03:41
- Forum: Boutique Stompboxes dissected...
- Topic: Vemuram - Jan Ray [traced]
- Replies: 76
- Views: 73763
Re: Vemuram - Jan Ray [traced]
It's big physically(?) maybe a highvoltage 47pf??
TS can use values to 100pf.
Dont know how this specifically alters the audio(?)
Maybe used to reduce highfrequency oscillations(?)
:-B
TS can use values to 100pf.
Dont know how this specifically alters the audio(?)
Maybe used to reduce highfrequency oscillations(?)
:-B
- 22 Feb 2021, 22:50
- Forum: Boutique Stompboxes dissected...
- Topic: Catalinbread - Karma Suture (germanium & silicon versions) [traced]
- Replies: 6
- Views: 4749
Re: Catalinbread Karma Suture (germanium & silicon versions) [traced]
Hmmm.
No path to gnd for Q1 &Q2 common emitters(?)
Definitely not a FF. Uses diodes for clipping.
No path to gnd for Q1 &Q2 common emitters(?)
Definitely not a FF. Uses diodes for clipping.
- 18 Feb 2021, 01:08
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Help needed - Boss FZ-5
- Replies: 3
- Views: 1193
Re: Help needed - Boss FZ-5
hello. the FZ-5 looks to be a BOSS/Roland COSM technology, meaning: It's digital!!! DSP (DigitalSignalProcessing) Here's the BOSS page: https://www.boss.info/uk/products/fz-5/ Probably standard fet switching for .in/out Try tracking the positive side of the battery to the pcb. Do same with the negat...
- 31 Dec 2020, 20:08
- Forum: Davidoff Library
- Topic: John Simonton, Leslie Simulator - Poptronics, March 1971 🇺🇸
- Replies: 5
- Views: 2892
Re: John Simonton, Leslie Simulator - Poptronics, March 1971
here is another link to a 5702 pdf directly from the PAIAtalk forum archives: It is not serchable, but there are tons of schematics on PAIA's website!!! https://www.paia.com/talk/viewtopic.php?f=6&t=67&view=next I have built this and it sounds very good. My thought was to run 2 in parallel(s...
- 19 Dec 2020, 21:33
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Edwards - Lightbeam Volume Pedal
- Replies: 8
- Views: 2341
Re: Does anyone know what pedal this is?
AC powered???? (transformer)
U just "plugged it in"????
no inductors?
volume pedal/preamp?
more disection is needed (evil laugh)
U just "plugged it in"????
no inductors?
volume pedal/preamp?
more disection is needed (evil laugh)
- 26 Nov 2020, 19:28
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Caline CP-22 Purple Smoke Clean Boost
- Replies: 6
- Views: 5371
Re: Caline CP-22 Purple Smoke Clean Boost
Looks escentially like an LPB-1.
- 23 Nov 2020, 20:51
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Dod Digitech PDS 1550 off board wiring and fix
- Replies: 7
- Views: 1695
Re: Dod Digitech PDS 1550 off board wiring and fix
I really do like the parametric in this unit!!
- 23 Nov 2020, 15:04
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Dod Digitech PDS 1550 off board wiring and fix
- Replies: 7
- Views: 1695
Re: Dod Digitech PDS 1550 off board wiring and fix
sorry...missed that :-( from ur first post, kicking means, of course, a bad connection. do u have a pic of the bottom of the pcb? (solder connections) I would feed a 1Vpp sine wave into the input and follow the signal with a scope. downloaded the schematic (thanks!!) and the owners manual. this is a...
- 22 Nov 2020, 22:49
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Dod Digitech PDS 1550 off board wiring and fix
- Replies: 7
- Views: 1695
Re: Dod Digitech PDS 1550 off board wiring and fix
have you seen this webpage on the PDS1550?
https://electricdruid.net/digitech-pds- ... -analysis/
https://electricdruid.net/digitech-pds- ... -analysis/
- 07 Nov 2020, 15:08
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Maestro - SS-3 Sustainer pots
- Replies: 8
- Views: 2314
Re: Maestro ss-3 sustainer pots
not if the carbon is deteriorated.
make note of the numbers ON the pot--that might be a clue...
OR
just substitute a 50K or 100K pot and see what happens.....
it would be good to watch things on a good scope.
this is a classic box!!!
goodluck!
- 05 Oct 2020, 23:40
- Forum: Announcements and Forum Rules
- Topic: Report Forum Problems and Make Forum Wishes Here...
- Replies: 258
- Views: 575091
Re: Report Forum Problems and Make Forum Wishes Here...
working fine here good job!
- 05 Oct 2020, 22:20
- Forum: Announcements and Forum Rules
- Topic: Report Forum Problems and Make Forum Wishes Here...
- Replies: 258
- Views: 575091
Re: Report Forum Problems and Make Forum Wishes Here...
was something changed? server location? ISP?
- 03 Oct 2020, 23:35
- Forum: Announcements and Forum Rules
- Topic: Report Forum Problems and Make Forum Wishes Here...
- Replies: 258
- Views: 575091
Re: Report Forum Problems and Make Forum Wishes Here...
i did turn off all notifications after login during b4 they stopped.
i think, since the message loop has ended, so i turned some back on.
no messages in my inbox here or email.
i think, since the message loop has ended, so i turned some back on.
no messages in my inbox here or email.
- 02 Oct 2020, 15:15
- Forum: Announcements and Forum Rules
- Topic: Report Forum Problems and Make Forum Wishes Here...
- Replies: 258
- Views: 575091
Re: Report Forum Problems and Make Forum Wishes Here...
not getting the many messages now. i didnt do anything else. stopped after i sent message to this spot. (??)
dont know what was done, but thanks!!!
dont know what was done, but thanks!!!
- 02 Oct 2020, 12:49
- Forum: Announcements and Forum Rules
- Topic: Report Forum Problems and Make Forum Wishes Here...
- Replies: 258
- Views: 575091
Re: Report Forum Problems and Make Forum Wishes Here...
i'm been getting PM every 5 minutes also. just started yesterday,, after i tried to upload to 5meg files(radio electronics articles).
have turned OFF all notifications, but i still get email every 5minutes!!!!!! help!!!
what's the best email for you so i can reply directly?????????
have turned OFF all notifications, but i still get email every 5minutes!!!!!! help!!!
what's the best email for you so i can reply directly?????????