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November 17, 2025, 09:03:42 AM

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#81
The Newcomer's Forum / Re: Realistic MPA-200 volume p...
Last post by saturated - October 18, 2025, 09:21:43 PM
Well I had to overcome my fear and not defy an order from my mentors

So I opened it up and it's not looking good

This black piece was loose

But now I see where the hickey is for the "stop" (I presume)

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Beyond that things get ugly(ier) quick

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EDIT. I seem have found a reasonable substitute except it is a stereo pot with two sets of terminals
#82
Honey Amp / Re: Missing BOM and build docs...
Last post by Valleyslad - October 18, 2025, 03:44:28 PM
Quote from: g1 on October 18, 2025, 10:14:51 AM
Quote from: RonSound on October 17, 2025, 02:52:41 PMhttps://www.ssguitar.com/index.php?topic=5010.0
There are no instructions or BOM included on the "documents" page.

No, unfortunately not. Any ideas?
#83
The Newcomer's Forum / Re: Realistic MPA-200 volume p...
Last post by saturated - October 18, 2025, 02:50:31 PM
Thanks guys I got some measurements

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Also wow this thing looks tiny since I saw it last

I know G1 said to take it apart I don't know if I can handle it  :grr

I found an old pot but it's 100k and looks to be PCB mount (?)

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#84
Honey Amp / Re: Missing BOM and build docs...
Last post by g1 - October 18, 2025, 10:14:51 AM
#85
The Newcomer's Forum / Re: Realistic MPA-200 volume p...
Last post by galaxiex - October 18, 2025, 08:40:34 AM
You can get "universal" solid shaft pots that have a long "cut to length" shaft.
Requires new set screw type knobs.
#87
The Newcomer's Forum / Re: Realistic MPA amplifier
Last post by saturated - October 16, 2025, 06:32:52 PM
Yes sir thanks nice to hear from you  :dbtu:

One BIG TO DO on my list is to set up some test speakers UP OUT OF THE WAY that I can CONVENIENTLY  :lmao: utilize for scenarios as these  :grr

#88
The Newcomer's Forum / Re: Realistic MPA-200 volume p...
Last post by Tassieviking - October 16, 2025, 05:47:22 PM
What is the length of the shaft ?
You will want to measure the splined shaft and the threaded shaft length and also add them together to be able to find a replacement.
The other option is replace both pots and also the knobs and you get a lot more choice to finding the pots, you can look at solid shaft pots or D shaft pots if you replace the knobs as well.
What is the diameter of the knobs ?
#89
The Newcomer's Forum / Re: Realistic MPA amplifier
Last post by Tassieviking - October 16, 2025, 05:30:22 PM
The silver one would make a good one to try a guitar on, it is missing the cap on the main fuse but you should be able to borrow the one from the black one to test it with, it should just unscrew.
Try the guitar into a microphone input and see what you get, the speaker out is transformer driven so you can use 4, 8, 16 ohm speakers by just using the right tap, just ignore the 25v and the 75v outputs.
I would turn it on and measure the voltage on the speaker terminals before attaching a speaker, you should always do that when you first start a solid state amp because if there is DC on the speaker output you can destroy the speaker in seconds.
There should be no DC on that amp since it has a transformer but it is better to be safe every time, if you have a preamp pedal that might help drive the black one to full power output as well.
Have fun
Cheers
Mick
 
#90
Honey Amp / Missing BOM and build docs?
Last post by Valleyslad - October 16, 2025, 05:26:39 PM
Hi. I'm fairly new here and just come across the honey amp, which I think would be a good project after my noisy cricket. I can see how to order from osh park, but I can't seem to find the bill of materials or instructions. Could someone point me in the right direction please?

Many thanks.