Search found 3119 matches

by bajaman
25 Aug 2020, 21:34
Forum: Pedal Debugging & Troubleshooting Support
Topic: EchoPlex PCB First Attempt Advice [SOLVED]
Replies: 1
Views: 95

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: Ready-To-Build Effect Projects
Topic: BAJA guitar preamp /buffer with switchable treble boost
Replies: 9
Views: 940

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: 112

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: 536

Re: MESIA ZOOM Tubeamp Schematic [schematic]

very M.E.S.A like ;-)
by bajaman
07 Aug 2020, 08:45
Forum: DIY Stompbox designs
Topic: BAJA Splawn Quick Rod style Overdrive 160220
Replies: 30
Views: 4310

Re: BAJA Splawn Quick Rod style Overdrive 160220

no oscillation problem with my layout
by bajaman
27 Jun 2020, 12:17
Forum: Ready-To-Build Effect Projects
Topic: BAJA SLO MkII overdive pedal project 040218 [verified]
Replies: 28
Views: 3778

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

"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: 580

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: 7998

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: 7998

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: 7998

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: 7998

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...
by bajaman
18 Jun 2020, 21:23
Forum: Amplifiers
Topic: How to improve tube amplifier tone by changing one part
Replies: 101
Views: 7998

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

Yesterday I had two Fender amplifiers in the workshop - a Hot Rod Deluxe and a Hot Rod Deville. I changed the first 22n capacitor after the input stage in both amps - used a TAD 22n mustard and the results were not subtle - I had the customer watching me for the Deville - first i played my strat int...
by bajaman
12 Jun 2020, 10:23
Forum: Ready-To-Build Effect Projects
Topic: BAJA LA2A Style Optical Limiter [verified]
Replies: 98
Views: 20780

Re: BAJA LA2A Style Optical Limiter [verified]

you are doing something wrong if it distorts
by bajaman
01 Jun 2020, 21:14
Forum: DIY Stompbox designs
Topic: BAJA Splawn Quick Rod style Overdrive 160220
Replies: 30
Views: 4310

Re: BAJA Splawn Quick Rod style Overdrive 160220

It sounds like the buzz noise is from single coil unshielded pickups - otherwise it sounds great
cheers
bajaman
by bajaman
12 May 2020, 22:27
Forum: Amplifiers
Topic: How to improve tube amplifier tone by changing one part
Replies: 101
Views: 7998

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

Also, if you can hear it, then you can definitely measure it. So swapping caps and doing some frequency spectrum analysis should clearly show up differences. Please feel free to do so with the suggested 22n TAD mustard capacitor versus a generic reddish brown chinese 22n 630v polyfilm capacitor wit...
by bajaman
12 May 2020, 02:44
Forum: Amplifiers
Topic: How to improve tube amplifier tone by changing one part
Replies: 101
Views: 7998

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

I just listened to the video. I could hear differences between the different caps, though they were subtle. Well - i could not hear any difference at all because they all sounded distorted :lol: Perhaps if he had compared any cheap Chinese 630v polyester capacitor with the SPECIFIC Tube Amp Doctor ...
by bajaman
11 May 2020, 11:02
Forum: Amplifiers
Topic: How to improve tube amplifier tone by changing one part
Replies: 101
Views: 7998

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

I'm not saying you are, but they exist.
yes - agree - we do exist.
by bajaman
09 May 2020, 23:32
Forum: Amplifiers
Topic: How to improve tube amplifier tone by changing one part
Replies: 101
Views: 7998

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

completely missing the point :roll: - but hey, that is exactly what i expected, so more fool me for actually suggesting it - just by chance has anyone tried using a philips or mullard mustard capacitor OR a TAD mustard capacitor ?
AND - try using a CLEAN tone not distortion ;-)
cheers
bajaman
by bajaman
06 May 2020, 05:33
Forum: Amplifiers
Topic: How to improve tube amplifier tone by changing one part
Replies: 101
Views: 7998

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

yes - i have heard good reports about those sozo capacitors as well. I will order a few and give them a try too. no need to go crazy replacing all the coupling capacitors though, as in my experience it is that first coupling capacitor after the input tube that makes the most difference to the "sound...