Panel mount plugs for amp effects loop master volume insert?

[r080]

I am trying to figure out what plugs would work to build those compact master volume inserts for amps with an effects loop and no master volume. Picture for reference:



No luck on digikey and mouser filtering for panel mount plugs.

[JustinFun]

Slightly off topic (not related to the parts sourcing); I always assumed those things were a con for the gullible? They're sold on eBay and Ali as 'attenuators' even though they're nothing of the sort. And how many NMV amps have an effects loop anyway?

Genuine question, does anyone know of any amp that would benefit from this device?

[anotherjim]

They would be ordinary cable mount plugs without jackets. Just use the threaded portion of the plug with a matching nut or a cut-off from the jacket to clamp it into the box. Next, find a small enough box.

[r080]

Slightly off topic (not related to the parts sourcing); I always assumed those things were a con for the gullible? They're sold on eBay and Ali as 'attenuators' even though they're nothing of the sort. And how many NMV amps have an effects loop anyway?

Genuine question, does anyone know of any amp that would benefit from this device?

Peavey Classic 30. I had one years ago and built something like this, but with jacks and requiring cables. I have since acquired another c30, and would like to put together something similar but without needing the cables.

[r080]

They would be ordinary cable mount plugs without jackets. Just use the threaded portion of the plug with a matching nut or a cut-off from the jacket to clamp it into the box. Next, find a small enough box.

My initial plan was to use the threaded cover inside the box, but a cutoff from it could work, as long as I can get a good enough grip on it.

I figure there must be somewhere a plug that is intended for this use. Notice the base of the plug is smooth. Every plug I am finding that has an outer flange is knurled.

[r080]

Decided to look at Newark. There are were few cable mount plugs there that seem like they could have been modified for this. Seems like the best plan.

[Kevin Mitchell]

Notice the base of the plug is smooth. Every plug I am finding that has an outer flange is knurled.

Could be custom, but probably not.
Many jacks for a cable assembly are threaded into the jack's cover - unless it's a molded type.
The jacks are typically sold as an assembly
Like this - https://www.mouser.com/ProductDetail/Amphenol-Audio/TM2R?qs=t8%2F5FiDdxGbuQDk0qGzIoQ%3D%3D

[stallik]

I asked the same question a couple of years back. Ended up modifying a standard plug
https://www.diystompboxes.com/smfforum/index.php?topic=125996.msg1203090#msg1203090

[r080]

I asked the same question a couple of years back. Ended up modifying a standard plug
https://www.diystompboxes.com/smfforum/index.php?topic=125996.msg1203090#msg1203090

Thanks. Good info there. Not sure why that didn't show up in my search.

[Rodgre]

Slightly off topic (not related to the parts sourcing); I always assumed those things were a con for the gullible? They're sold on eBay and Ali as 'attenuators' even though they're nothing of the sort. And how many NMV amps have an effects loop anyway?

Genuine question, does anyone know of any amp that would benefit from this device?

For me, the modern (early 90s to current) Blues/HotRod Deluxe and Deville NEED this. These were pretty much invented for this purpose.

I use one of these exact devices in the send/return of a HotRod Deluxe and a Blues Deville as those amps are are just too loud and the Volume knob too sensitive on the clean channel (the only channel I would use) where the pot goes from "0" to "too loud!" in the span of three millimeters of a turn. It's ridiculous and I can't imaging how Fender has never attempted to deal with this. (I've thought about tinkering with the taper of the pot or putting another resistor in series, but then I saw this thing....)

Calling this an "Attenuator" in the sense that it's a power attenuator between the amp and speaker is definitely incorrect and highly dangerous to use it that way, however is IS an attenuator the way that a master volume is, as it limits the volume hitting the power amp so you can turn the preamp up to a sweet spot and then adjust this control so you can actually gig with it.

For reference, I am a professional gigging guitar player, playing every weekend for decades. I typically play 300 +/- person venues on small stages where my amp is still always mic'd up through the PA so my stage volume is only for me to hear and not the audience. There is no need for excessive volume. I had been using a 63 Vibroverb RI set to about "1.5" to "2" on the Volume, using pedals for all drive tones. Recently, I switched to a HotRod Deluxe and at a similar 40 watts to the Vibroverb, it's just way too loud/too sensitive for most gigs that I play. Adding this device was totally necessary in my case and I am so glad that someone is making these. (Before I bought this, I used either a volume pedal, which was too easy to inadvertently adjust, clunky and took up too much space and was about to build my own passive volume control box to sit on the amp top when I saw these on Esty).

Fear not. If you are using a modern Fender Deluxe/Deville with the Send/Return jacks, these things are awesome.

Roger

[r080]

It's ridiculous and I can't imaging how Fender has never attempted to deal with this.

Legend has it that Fender purposely used the wrong taper pots so their amps would seem louder when people went to the store to buy them. I am more tempted to believe they got a deal.