Search found 243 matches

by toneman
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.
by toneman
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)
by toneman
25 Jun 2021, 21:15
Forum: Davidoff Library
Topic: Forrest Mims' notebooks 🇺🇸
Replies: 3
Views: 1303

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....
8)
by toneman
25 Jun 2021, 21:09
Forum: Davidoff Library
Topic: Forrest Mims' notebooks 🇺🇸
Replies: 3
Views: 1303

Re: Forrest Mims" notebooks new + marston

ok. one opamp book was 26pages other was 52.
guess i uploaded the 52x2 oops :-p
by toneman
25 Jun 2021, 16:13
Forum: Davidoff Library
Topic: Forrest Mims' notebooks 🇺🇸
Replies: 3
Views: 1303

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...
by toneman
20 Apr 2021, 03:41
Forum: Boutique Stompboxes dissected...
Topic: Vemuram - Jan Ray [traced]
Replies: 76
Views: 73750

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
by toneman
22 Feb 2021, 22:50
Forum: Boutique Stompboxes dissected...
Topic: Catalinbread - Karma Suture (germanium & silicon versions) [traced]
Replies: 6
Views: 4745

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. :-(
by toneman
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...
by toneman
31 Dec 2020, 20:08
Forum: Davidoff Library
Topic: John Simonton, Leslie Simulator - Poptronics, March 1971 🇺🇸
Replies: 5
Views: 2891

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...
by toneman
19 Dec 2020, 21:33
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Edwards - Lightbeam Volume Pedal
Replies: 8
Views: 2340

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)
by toneman
26 Nov 2020, 19:28
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Caline CP-22 Purple Smoke Clean Boost
Replies: 6
Views: 5370

Re: Caline CP-22 Purple Smoke Clean Boost

Looks escentially like an LPB-1.
by toneman
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!!
by toneman
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...
by toneman
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

mozz wrote: 07 Nov 2020, 11:35 Can't you just measure them?
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!
by toneman
05 Oct 2020, 22:20
Forum: Announcements and Forum Rules
Topic: Report Forum Problems and Make Forum Wishes Here...
Replies: 258
Views: 573295

Re: Report Forum Problems and Make Forum Wishes Here...

was something changed? server location? ISP?
by toneman
03 Oct 2020, 23:35
Forum: Announcements and Forum Rules
Topic: Report Forum Problems and Make Forum Wishes Here...
Replies: 258
Views: 573295

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.
:-)
by toneman
02 Oct 2020, 15:15
Forum: Announcements and Forum Rules
Topic: Report Forum Problems and Make Forum Wishes Here...
Replies: 258
Views: 573295

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!!!
by toneman
02 Oct 2020, 12:49
Forum: Announcements and Forum Rules
Topic: Report Forum Problems and Make Forum Wishes Here...
Replies: 258
Views: 573295

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?????????