Bigguy2017

Using the 12th fret for measuring action height makes calculations for saddle height and neck angle easier. 1mm change at 12th equals 2mm adjustment at the bridge saddles.

They could all be on the same ring main

I'd try a with wiring check plug at Rehearsal room 1 - It may have a missing earth ;-(

Here's something https://www.talkbass.com/threads/ric-bass-wiring-diagrams.1218400/

Could be many things.... The way to approach it is to prep a cable with 1/4" jack (amp) to croc clips. Start with the pickups- unsolder at the pots and connect to the amp with the croc clips - how do they both sound? Next, wire pickup to a volume pot (disconnect tone pots) - does it still sound good - does the volume pot work as expected? Next connect the tone pots (one at a time) - do these work like tone pots? Next, the switch.... croc leads on the 'output' - do all three positions work as expected? If all is good then so far you have two working pickups, two working vol pots, two working tone pots and a working switch OR you will have found some problems to fix... Finally reconnect the output jacks - these are a flippin' nightmare on Rics with the whole Ric-O- Sound stereo / mono switching. It's often easier to fully rewire than try fixing previous dodgy fixes. I'm looking for a good Ric 4003 wiring diagram - best I could find is this... what you really want is a diagram with the parts and wiring shown as-is.

Bass -> Sgfx Beta-V -> Fender Rumble 200 combo -> Focusrite Scarlett 8i6 G3 -> Studio One Compression and EQ in the DAW

Those are 1/4" (Imperial) mini pots ?? Are they Alpha or CTS pots? nuts are either 1/4"-32 OR 1/4"-28 ? Anyone know for sure? The metric mini ones are M7 thread with a 9mm nut https://www.thonk.co.uk/shop/alpha-nuts-washers/ Full size pots/jacks such as CTS and Switchcraft = 3/8" x 32 thread. Full size metric pots such as Alpha = M8 x 0.75 thread.

Schaller, Gotoh, Hipshot - not much difference really

I've had good results with glass fibre tape + epoxy on the inside, then an epoxy / slurry crack fill on the outside. Sand off any lumpy bits and finish with Plastikote black satin rattle can.

Could be Planet Waves Custom Series... https://www.fnx.ch/en/shop/jack-planet-waves-custom-series-610m-3 but other that that obscure Swiss site I can find nowt more about it.

The sticker in the pickup cavity shows 1979

You'll have to get a replacement stacked pot. Lift the scratchplate and take some photos... is there a PCB or are they separate pots?

Lindy Fralin Jazz Bass set 5% overwound. Sound phenomenal on my MIJ 62 JB RI.

Yes, use one pickup only, vol and tone on max, phone about 4" above pickup, make sure the Toneprint is for your Amp - I use the Spectracomp in my BG250 combo.

You could wire the pots as variable resistors across the output. The volume pot would then give; from 250K load (like standard vol pot) to 1M25 load - could use a zero load pot here The tone pot would give; from standard tone at 100% to basically nothing - could use a zero load pot here too.

Simplest way is using an HDMI cable (IF your tablet can manage an HDMI output) - what tablet? what connections? If you can find an HDMI adapter for the tablet then a cable should work. With no HDMI out there is Miracast IF the projector supports this (which it probably won't) - what projector? You may be able to Miracast/Airplay (if tablet can( to a Miracast/HDMI adapter at the projector, but there's a lot of 'ifs' ... Something like this https://www.amazon.co.uk/AT-Mizhi-Wireless-HDMI-display-adapter-Black/dp/B08T22S76M/ref=sr_1_4?crid=3I37DXD9Z7PNG&keywords=miracast%2Badapter%2Bhdmi&qid=1686048719&sprefix=mirrorcast%2Badapter%2Bhdmi%2Caps%2C70&sr=8-4&th=1 A laptop with an HDMI out is much more likely to work.

CPC Farnell Search for Brennenstuhl Hugo They do 4, 6 and 8 ways, polycarbonate body and chunky cable. The coloured ones are good for segregating systems.

Yes, got one from GAK last week. Still working through its many settings. Initial impressions are mixed... good EQ, DI with cab sim records well. Compressor is lousy - either does nothing or pops, so basically unusable. SVT mode works best for me - I'm after a wee bit of Ampeg grunt in the lows, which this box does, but lots of the stuff is irrelevant. Maybe if you want lots of distortion. I'll persevere and try some IRs, but so far I'm preferring the SGFX Beta-V pedal for tones.

Yes, I'm not getting along with the built-in compressor either - as you say either nothing or pops and clicks. Maybe fixable with a firmware update? The DI out with cab sim records well and there's heaps of EQ, but overall I'm preferring the SGFX Beta-V; now if that had a DI out... ;=)

Just got one of these and it's very good. Into my Rumble 200 it adds some convincing Ampeg grit.

Also the Rockboard flat ones.

UBB? mini, micro, or C? search for 'android tablet network adapter' on Amazon and find one with the correct USB connector. this one's USB C https://www.amazon.co.uk/Cable-Guys-1000-Ethernet-Adapter-Black/dp/B0BJC6M3KH/ref=sr_1_11?crid=3OQKNX2HXM4B2&keywords=android+tablet+network+adapter&qid=1685465458&sprefix=android+tablet+network+adapter%2Caps%2C86&sr=8-11

ui12 does have a wired network socket so it should be possible ... You need a wired network adapter for your tablet (iPad?) and a wee network switch If the tablet is Thunderbolt then something like this (tablet specs vary, so check)... https://www.amazon.co.uk/Lighting-Ethernet-Charging-Compatible-10-iOS14/dp/B09BKSN9MZ/ref=sr_1_3?adgrpid=1183075410342010&hvadid=73942413152603&hvbmt=be&hvdev=c&hvlocphy=41944&hvnetw=o&hvqmt=e&hvtargid=kwd-73942349747781%3Aloc-188&hydadcr=4426_1824214&keywords=ipad+to+ethernet+adapter&qid=1685453060&sr=8-3 and a switch https://www.amazon.co.uk/TP-Link-TL-SG105S-Ethernet-Lifetime-Warranty/dp/B07HP5TN4S/ref=sr_1_3?crid=1AZI6QDETF8Q0&keywords=tp+link+switch&qid=1685453502&sprefix=tp+link+switch%2Caps%2C82&sr=8-3 plug up with two network cables and put both devices on the same subnet 192.168.xxx.yyy with subnet mask: 255.255.255.0 (see page "10.1.3: LAN" in manual) ... As ui12 network port auto negotiates, you may not need a switch (IF tablet adapter plays nice), just one cable...