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Messages - Enzo

#1
Amplifier Discussion / Re: Fender 112 Deluxe Plus
July 23, 2022, 08:56:56 PM
No.

Look at your schematic.  R82 connects directly to CP5, which the schematic says has 31.9va on it.  Close enough.
#2
Look on sites like ebay or Reverb.com and see what they are selling for.
#3
ANy competent amp tech can handle this repair.

Look inside your reverb pan.  The innards are suspended inside by four short springs.  It is free to bounce around.   Make sure it hasn't been bounced up and on top of the little posts.  Also check that one of the long springs has not broken.
#4
Amplifier Discussion / Re: Fender 112 Deluxe Plus
May 30, 2022, 04:00:38 PM
If you have a stereo receiver, you could even run the preamp out of the amp to an AUX input on th receiver for a listen.
#5
With NO footswitch, does the channel select switch work?   And does the reverb work?

What resistor that connects to the rest of the amp?  You mean R110?   Please use part numbers.  If R110, is there about 30vAC on one end?

Not sure why we would change a bunch of diodes.

Look at your schematic, at the footswitch circuit.  See all those test points with voltages for switching conditions?  How do your voltages compare?
#6
Well it could be anything in the circuit.  The 10 year old thread is about an MA104, and you have a MA007.  Are they the same inside?  I don't know.  Can you post a schematic?
#7
Amplifier Discussion / Re: New Gamma SS Amps
May 22, 2022, 03:22:45 PM
Saw a cheap camera advertised as having a "genuine non-achromatic lens".


And I bet the amp is also gluten free.
#8
Amplifier Discussion / Re: New Gamma SS Amps
May 21, 2022, 02:18:45 PM
100% analog?  My how clever.   That simply means there is no digital in it.  Like no DSP or anything.    Imagine I market a TV set with "genuine full manual direct wired controls".  It just means it doesn't come with a remote, you have to walk to the set to change channels.
#9
You have three LEDs - plus power indicator -  A, B, and P?  I'd wager channel A, channel B, and Peak.


I'd check the IC for function
#10
I think the lesson there is don't just flip an amp on and crank a power chord without at least checking the amp.  AANy amp, ever.

I did, it grew.  I had options of huge or tiny.  I like a pdf so I can grab the part I want and make it the size I want.   I'm not complaining, I am just picky.
#11
That^^^^

SOlid state amps do not need a load.  TUBE amps always do.
#12
I can't read yours, but I have the G100-3, which looks the same other than power.

May I suggest, just unplug the speakers?  The schematic and parts layout shows the speakers plugging into the rear panel jack.
#13
Schematics and Layouts / Re: Samick SM-10 Amp
April 30, 2022, 01:35:16 AM
And electrolytics do dry out with age, but the little film and ceramic caps should last forever.   REALLY OLD caps like the wax covered ones in really old tube stuff will need to be changed as well.

And I agree, on these little practice amps, it really is unlikely you need to change out the caps at all.
#14
Amplifier Discussion / Re: Fender 112 Deluxe Plus
April 28, 2022, 06:25:06 PM
And at the other end?
#15
Feedback is one form of oscillation.  There are others.