Welcome to Solid State Guitar Amp Forum | DIY Guitar Amplifiers. Please login or sign up.

May 28, 2024, 06:13:36 AM

Login with username, password and session length

Recent Posts

 

saturated's all encompassing inclusive and exclusive bin thread

Started by saturated, September 10, 2023, 03:09:27 PM

Previous topic - Next topic

saturated

I decided to put a load on it...12k ohm resistor

Similar results

You cannot view this attachment.

More Bruce

 :P

I have a feeling Bruce says we need some capaci-taters
I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome

g1

I think you have your AC source there hooked up to the output pins.
The error when installed backwards would have reversed the + and - output pins.  The AC would have still been correct as it is non-polar.

saturated

Yes sir thank you  :P

I decided to take a look at this on my scope

Btw here is the source of 12v ac

You cannot view this attachment.

So connecting scope probes directly to cables coming from ac source

You cannot view this attachment.

My phone was struggling to get a full trace left to right despite trying to adjust trigger etc the trace was jittery and flickering real bad

So now connect scope probes to (+) and scope ground to (-)

You cannot view this attachment.

Which I like that but when I had the scope switched to ac I had just a flat line

Then connecting scope probe to (~)

You cannot view this attachment.

So I guess everything is cool. 

I'm off to connect some other stuff to the scope and try to get a better full steady trace.

 :P



I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome

saturated

I'm relieved that my signal generator provided some nice traces

You cannot view this attachment.

You cannot view this attachment.

Idk why the trace from that transformer was so sketchy.


I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome

saturated

Good afternoon solid state afficianados.

Hope your weekend is going well at least what's left of it.

:P

I had a question about preparing some banana jack patch cable connectors whether or not these needed to be soldered.

The wires shown are not gonna be used they are only to illustrate the routing of the holes in the metal part.


You cannot view this attachment.

Maybe I just strip the wire insert it and screw the cap down...idk

Thanks


I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome

JonnyDeth

Quote from: saturated on April 21, 2024, 03:07:37 PMGood afternoon solid state afficianados.

Hope your weekend is going well at least what's left of it.

:P

I had a question about preparing some banana jack patch cable connectors whether or not these needed to be soldered.

The wires shown are not gonna be used they are only to illustrate the routing of the holes in the metal part.


You cannot view this attachment.

Maybe I just strip the wire insert it and screw the cap down...idk

Thanks




Use the compression screw on system for now and decide later on after pondering it a bit if you think soldering will be the best final path. As an electrical/electronics engineer, the "right" way of doing things is not always the best or most rational, and primarily taught for what you should expect if you go to work in whatever cornered field of science your education leads you to where far more educated and experienced engineers told me over a decade ago, you'll ultimately end up only using 10-15% of your education wherever it is you settle in lol.

I'm sitting on a huge regret ATM from trying to repair my Zoom G5 some lunatic woman smashed and doing it the "right" way was a disaster! I suspect my repairs won't be successful but fortunately, the unit overall should still work and I will either have to scroll effects to a different bay of the controls since it has 4 and 2 were broken, or stick to programming it by USB and PC.
The only upside to the destruction of that unit is I bought a 2nd one. I got the damn thing 12 years ago brand new when they were about $450, but for $180 on zZounds which a week later, went right back to the normal price. I have some current generation digital floor units that are absolutely amazing, but this 12 year old dinosaur still outperforms them tonally. Parameter wise, the modulation and effect parameter adjustable functions are quite mediocre.

saturated

I put all the knobs nuts washers etc back on my all time favorite amp

You cannot view this attachment.

They had been off since you guys fixed it.  I had planned to get around it but never did then I had an intermittent input jack and noticed how bad the chassis was rocking back and forth.

 8)
I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome

saturated

Today I had to make a parallel circuit with a variable resistor

You cannot view this attachment.

Then do some calculations etc for voltage drops and calculate how many ohms the variable resistor should be for Va to equal Vb

Then make the circuit and do it

You cannot view this attachment.


So yeah pretty boring but it's definitely helping I have to chug through this in order to get to the cool stuff.

Pretty funny the book noted "although Vo can be directly measured across A and B it is good practice to make all measurements with respect to ground"

 8)



I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome

g1

Quote from: saturated on May 04, 2024, 03:18:47 PMPretty funny the book noted "although Vo can be directly measured across A and B it is good practice to make all measurements with respect to ground"
Does Vo mean V offset?  Where measuring direct from A to B should give zero when they are balanced?

saturated

Yes sir Im not sure what V offset is  :'( but I think they meant compare the two voltages rather than just measure across A and B and turn the pot until it's zero.

At one time I was taking pics of the exercises in the textbook but got kinda wigged out about copyright issues.   :P
I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome

saturated

The fret rest is awesome.  I always knew about them but told myself why do I need one I keep my guitars in cases.

So I bought one used local and it has been a lifesaver

You cannot view this attachment.

Yes i do love it so handy when setting up... plugging in..or if you need to set it down for a moment

You cannot view this attachment.

I missed out all these years not having one  :'(
I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome

saturated

Man Joe is getting some really tempting reverb ads on here...must resist  :'(  :P

Anyhow I found that if you are playing a song off YouTube on your phone like trying to learn it while you play...if you hold it up to your pickups it will play through your amp

:P  :-[  :-[  8)
I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome

joecool85

Quote from: saturated on May 05, 2024, 11:10:45 PMAnyhow I found that if you are playing a song off YouTube on your phone like trying to learn it while you play...if you hold it up to your pickups it will play through your amp

:P  :-[  :-[  8)

I might need to try this...
Life is what you make it.
Still rockin' the Dean Markley K-20X
thatraymond.com