Search found 82 matches

by stiltamp
Sun Aug 29, 2021 10:07 pm
Forum: Technical Discussion
Topic: Directly heated cathode help
Replies: 4
Views: 1881

Re: Directly heated cathode help

Here one more about:
https://diyaudioprojects.com/mirror/mem ... umbal.html
I think that in the first circuit in this topic, you can use the heating coil for multiple stages, but I am not sure.
by stiltamp
Mon Aug 26, 2019 4:38 pm
Forum: Dumble Files
Topic: Dumble Stompbox
Replies: 0
Views: 23571

Dumble Stompbox

I know Dumble is an overall concept, but I should nonetheless like to know who built a Dumble tube stompbox, in particular using the overdrive section as standalone driven by any input boost circuit.
by stiltamp
Thu Nov 22, 2018 10:36 am
Forum: Technical Discussion
Topic: Cap Leakage Tester Schematic
Replies: 11
Views: 1348

Re: Cap Leakage Tester Schematic

Thanks for your modding hints.
by stiltamp
Sun Nov 18, 2018 10:54 am
Forum: Technical Discussion
Topic: Cap Leakage Tester Schematic
Replies: 11
Views: 1348

Re: Cap Leakage Tester Schematic

This is my translation of the German article form above, english is not my mother tongue, so please be indulgent to my mistakes. The test voltage is set by the ratio of the voltage divider left. Put in the capacitor you want check, after that actuates the switch. Now the capacitor will be charged. I...
by stiltamp
Thu Nov 15, 2018 9:51 pm
Forum: Technical Discussion
Topic: Cap Leakage Tester Schematic
Replies: 11
Views: 1348

Re: Cap Leakage Tester Schematic

Here the schematic of a leakage current tester,
unfortunately only in German language.
CapacitorLeakageCurrentTesterGermanLanguage.pdf
by stiltamp
Wed Aug 23, 2017 5:26 am
Forum: Dumble Discussion
Topic: Latest Tweeked Dlite Schematic Confirmation?
Replies: 15
Views: 2204

Re: Latest Tweeked Dlite Schematic Confirmation?

Thanks for sharing the documents.
The third link is the same as the second link, the layout is missing

with respect, stiltamp
by stiltamp
Thu Jun 08, 2017 6:56 am
Forum: Technical Discussion
Topic: Bogner Modded Marshall 1987
Replies: 12
Views: 2653

Re: Bogner Modded Marshall 1987

Thanks for sharing!
by stiltamp
Tue Feb 28, 2017 10:54 am
Forum: Fender Discussion
Topic: Fender Custom Vibrolux (Distortion Problem)
Replies: 9
Views: 1552

Re: Fender Custom Vibrolux (Distortion Problem)

The Voltage of 70V DC is ok , in comparison with other Fender schematics.
Perhaps there are twisted numbers and a value of 71,4V was meant.
by stiltamp
Sun Feb 26, 2017 10:27 pm
Forum: Trainwreck Discussion
Topic: Express: Add gain pot and bypass switch for 3rd gain stage
Replies: 2
Views: 1207

Re: Express: Add gain pot and bypass switch for 3rd gain stage

If the grid of V3 becomes positiv due to a high signal peak, then the sound is influenced, because there is a current flow into the grid. The current flow into the grid causes a voltage drop on the resitors R2 and R3. If the S1 in the right switch position, the right pin of capacitor C3 is not conne...
by stiltamp
Wed Dec 07, 2016 12:42 am
Forum: Dumble Files
Topic: ODS Eyelet Boards
Replies: 60
Views: 31775

Re: ODS Eyelet Boards

Thanks to all for sharing the eylet boards and the PCB-Layouts.
by stiltamp
Tue Nov 15, 2016 9:24 am
Forum: Dumble Files
Topic: ODS Eyelet Boards
Replies: 60
Views: 31775

Re: ODS Eyelet Boards

Thank you very much for sharing the board layouts.
by stiltamp
Tue Nov 01, 2016 12:26 pm
Forum: Garage Talk
Topic: What're you listening to right now??
Replies: 1182
Views: 341830

Re: What're you listening to right now??

That are amazing young musicans from sweden.
Late 60th style music using the original equipent form this time.

Watch it an listen on.

https://www.youtube.com/watch?v=pmHugBTGDPM

The womans voice knock you out.

Great in my opinion.
by stiltamp
Tue Oct 04, 2016 11:23 am
Forum: Garage Talk
Topic: ExpressPCB issues
Replies: 3
Views: 1572

Re: ExpressPCB issues

I have Windows 10 and all the SCH stuff works fine for me. Of course, I had to download the program again. Have you done that? With respect, 10thtx Yes, I did, but the the newest version is not operating either. I think that is an inherent WINDOWS10 problem, so I have to completely reinstall the op...
by stiltamp
Sun Oct 02, 2016 6:29 am
Forum: Garage Talk
Topic: ExpressPCB issues
Replies: 3
Views: 1572

ExpressPCB issues

ExpressPCB never runs since I swapped form WindowsXP to Windows10.
The message "run-time Error 13" appears immediately after starting the software.

I tried many recommended fixes and software repair tools, but nothing did work.

Who knows more about?