Search found 3118 matches

by bajaman
19 Feb 2021, 21:44
Forum: Pimp-My-Cheap-Pedal
Topic: Boss Xtortion XT-2
Replies: 11
Views: 4442

Re: Boss Xtortion XT-2

Boss Corporation's biggest lemon - no wonder they discontinued it quickly ;-)
by bajaman
02 Feb 2021, 23:44
Forum: Amplifiers
Topic: Ibanez TSA30 tubescreamer amplifier - how to fix it so it works properly ! !
Replies: 1
Views: 289

Ibanez TSA30 tubescreamer amplifier - how to fix it so it works properly ! !

I posted this on the SS Guitar forum Well, I just had two more of these abortions in my workshop - both with that nasty buzz/ hum ;) I tried increasing the capacitor at the input of the 10v regulator but unfortunately the buzz was still there, although reduced slightly, SO, i decided to find out wha...
by bajaman
26 Nov 2020, 23:58
Forum: Boutique Stompboxes dissected...
Topic: McGregor - CrunchPlus
Replies: 17
Views: 1314

Re: McGregor - CrunchPlus

can you measure R4 with a multimeter please
?
cheers
bajaman
by bajaman
26 Nov 2020, 22:03
Forum: Boutique Stompboxes dissected...
Topic: McGregor - CrunchPlus
Replies: 17
Views: 1314

Re: McGregor - CrunchPlus

I think R2 should be 68k and R4 4k3 ;-)
cheers
bajaman
by bajaman
26 Nov 2020, 10:58
Forum: Boutique Stompboxes dissected...
Topic: McGregor - CrunchPlus
Replies: 17
Views: 1314

Re: McGregor - CrunchPlus

something is wrong with the values for R2, R4 and C2 - I suspect R2 is a much larger value or R4 is much smaller and C2 is definitely suspect at 100n !
with those values the input gain is only approximately 2.7 times and has a low pass 3db at 20Hz - perhaps R2 is 750k and C2 10n ?
by bajaman
01 Nov 2020, 10:53
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Rockman X100 - Make it a DIY Pedal
Replies: 164
Views: 13971

Re: Rockman X100 - Make it a DIY Pedal

either D115 or D116 needs to be inverted ;-)
by bajaman
25 Aug 2020, 21:34
Forum: Pedal Debugging & Troubleshooting Support
Topic: EchoPlex PCB First Attempt Advice [SOLVED]
Replies: 1
Views: 293

Re: EchoPlex PCB First Attempt Advice [SOLVED]

I can see at least two mistakes already ;-)
Out pin not connected, R6 should be connected to it instead of to C3, and the pot wiring is totally wrong - there should not be a trace between pins 1 and 3 - leave pin 3 not connected like in the picture on the right side !
by bajaman
25 Aug 2020, 06:58
Forum: Open Source Projects
Topic: BAJA guitar preamp /buffer with switchable treble boost
Replies: 9
Views: 1657

Re: BAJA guitar preamp /buffer with switchable treble boost

hmmm - still using this in my two guitars - have not changed the battery as yet ;-)
by bajaman
24 Aug 2020, 00:20
Forum: Pedal Debugging & Troubleshooting Support
Topic: BK Butler True Overdrive Rev 2 hums
Replies: 1
Views: 290

Re: BK Butler True Overdrive Rev 2 hums

make sure that you run the series tube heaters ground wire on it's own separate connection wire back to the ground connection of the AC input socket. Never mix this ground connection with the signal ground.
cheers
bajaman
by bajaman
18 Aug 2020, 09:05
Forum: Amplifiers
Topic: MESIA ZOOM Tubeamp Schematic [schematic]
Replies: 4
Views: 1295

Re: MESIA ZOOM Tubeamp Schematic [schematic]

very M.E.S.A like ;-)
by bajaman
27 Jun 2020, 12:17
Forum: Open Source Projects
Topic: BAJA SLO MkII overdive pedal project 040218 [documentation]
Replies: 29
Views: 6027

Re: BAJA SLO MkII overdive pedal project 040218 [documentation]

"Guys, can someone explain to me what is the need for multiple gain stages?"
answer: read the first post in this thread ;-)
by bajaman
26 Jun 2020, 00:56
Forum: Pedal Debugging & Troubleshooting Support
Topic: Buffer adding hisssssssss
Replies: 10
Views: 1068

Re: Buffer adding hisssssssss

try inserting a 100 ohm resistor in series with the output from the charge pump to the opamp pin 7, and then connect a 220uf (at least 35v) capacitor from pin 7 to ground ;-)
cheers
bajaman
by bajaman
23 Jun 2020, 22:41
Forum: Amplifiers
Topic: How to improve tube amplifier tone by changing one part
Replies: 101
Views: 12469

Re: How to improve tube amplifier tone by changing one part

anyone tried my SUGGESTION yet ?
by bajaman
22 Jun 2020, 10:35
Forum: Amplifiers
Topic: How to improve tube amplifier tone by changing one part
Replies: 101
Views: 12469

Re: How to improve tube amplifier tone by changing one part

"Here’s some one that has done a proper blind test on tone controls

https://youtu.be/817JHiYV_Po"

totally irrelevant to this thread ;-)
by bajaman
22 Jun 2020, 10:33
Forum: Amplifiers
Topic: How to improve tube amplifier tone by changing one part
Replies: 101
Views: 12469

Re: How to improve tube amplifier tone by changing one part

Please read the first line of my original post and contemplate why I was reticent to share my subjective observations - as Thomas said to Jesus "show me the holes - i want proof"
None so blind as those who will not see, and none so deaf as those who will not hear ;-)
cheers
bajaman
by bajaman
21 Jun 2020, 00:43
Forum: Amplifiers
Topic: How to improve tube amplifier tone by changing one part
Replies: 101
Views: 12469

Re: How to improve tube amplifier tone by changing one part

Has anyone actually tried my suggestion yet ? I would very much like to hear from you. As I previously stated - I am not interested in proof, recordings measurements etc. If you decide to ACTUALLY TRY my suggestion (with a clean not over distorted signal) then I would be very pleased to hear your th...