collapse

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Jazz P Bass

Pages: [1] 2 3 ... 9
2
The Newcomer's Forum / Re: B-52 schematis
« on: March 24, 2019, 06:14:58 PM »
Would you be so kind as to post the link?

3
Schematics and Layouts / Re: Variable resistor on marshall scheme
« on: March 17, 2019, 11:59:01 PM »
That symbol is trying to indicate that the wiper (the middle leg) gets attached to either the left or the right leg.

4
The + of the bridge rectifier is marked 'A'.
The - is marked 'D'.

5
Schematics and Layouts / Re: Frontman 212r
« on: February 18, 2019, 07:32:54 PM »
I don't believe that switch is available anymore.

Have you attempted to contact Fender?

6
Amplifier Discussion / Re: Ampeg SVT450
« on: February 17, 2019, 12:27:35 AM »
Use the FX jacks to help narrow it down.

The Send to another amp is your preamp.

The Return is pretty much a line into the power amp.
You can use the Send from another amp or any instrument.

7
Amplifier Discussion / Re: Ampeg SVT450
« on: February 15, 2019, 11:18:15 AM »
How are you setup test equipment wise?

There are signal voltage references on the schematic that may help narrow down where the issue lies.


8
Amplifier Discussion / Re: Polytone 102 Tremolo
« on: January 25, 2019, 12:44:21 AM »
The IC U2B is set up as a self running low frequency oscillator.

Look above it at IC U3B, pin #9/ R20 also has the Lambda symbol.
I take it that R20 is the LDR.

U2B's oscillating output will allow a change in the resistance of R20.
There is your Tremelo.

9
The Newcomer's Forum / Re: Fender bass cab questions
« on: January 17, 2019, 11:25:32 AM »
If the are all 8 ohms, then the equation works out to 5.33 ohms.

10
Preamps and Effects / Re: Aion lab series l5
« on: January 14, 2019, 01:51:05 PM »
For those following along:

11
Preamps and Effects / Re: Aion lab series l5
« on: January 14, 2019, 12:00:25 AM »
Schematic?????

12
Amplifier Discussion / Re: Polytone Mini S12 Question
« on: January 01, 2019, 09:11:14 PM »
Here is a link of a post from 2009.
And the pics are still there!
(F U PhotoBucket)
https://www.ultimate-guitar.com/forum/showthread.php?t=1172707

13
Amplifier Discussion / Re: Grounding techniques
« on: January 01, 2019, 12:03:16 PM »
I believe that you are missing the point of the Earth connection.

"Wall Wart" power supplies are typically rated as 'Double Insulated'.

Therefore there is no need for a connection to Earth Ground.

If you are having noise issues with the amplifier, I would look into why.

The power pack itself may be the issue, noise wise.

14
The Newcomer's Forum / Re: Carlsbro GLX100 footswitch query
« on: December 30, 2018, 03:53:01 PM »
"so how do I determine which of the pins is which/is ground?"

Use your ohmmeter.
The ft sw ground pin will be at the same potential as the chassis.

The function pins will not.

15
The Newcomer's Forum / Re: Carlsbro GLX100 footswitch query
« on: December 30, 2018, 12:39:46 AM »
Pull any function pin to ground & it will 'operate'.

Pages: [1] 2 3 ... 9

* User Controls

 
 
Welcome, Guest. Please login or register.
Did you miss your activation email?

* Recent Posts

Vox Pathfinder 10 mods by blackcorvo
[Today at 02:20:12 AM]


Honeytone Tube conversion using subminiature tubes by blackcorvo
[Today at 01:44:00 AM]


Noisy EFF board from a Roland JC-120G by joecool85
[April 16, 2019, 01:58:30 PM]


Univox Stage 65b by Sfmag1
[April 12, 2019, 05:45:51 AM]


Crate gx900h by Amdthedestroyer
[April 04, 2019, 05:38:16 PM]

* Sponsors