Dr. Feickert Blackbird

JVC Victor made 7 layer plinths, in 3 sizes, here’s the largest one

https://www.topclassaudio.com/web/chi/photo_gallery_details.jsp?gid=1515

 

CL-P1 for single arm

CL-P2 for two removable tonearm boards

CL-P3 for three removable tonearm boards

cutouts fit several models of their Direct Drive Spinners, TT61, 71, 81, 101

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I have a CL-P2, with TT81, and I added a 3rd arm on the left side for Mono Cartridge ready to go. Compact Mission/Jelco arm ’just’ fits.

see 8th photo here

 

Curious that my 12.5" long arm is called ’Blackbird’. I tried to forget about it, couldn’t get it out of my mind, finally risked it, glad I did.

btw: the CL-P2 allows the longest arm, longer than the CL-P3 because in order to get an arm board on the left, they moved the right side armboard closer to the platter. I was going to buy a CL-P3, luckily seller had a photo with ruler, I realized my 12.5" arm would not fit. Surprise, sure glad I didn’t pay to have it shipped from Hong Kong and find out after. Whew!

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They come up frequently for sale, my friend and I got ours from Vlad in Canada. I don’t see any complete units listed now.

I could not be happier, MC on the right; MM in the rear; Mono on the left, chage within seconds in a listening session.

You need to solve how you switch, I found a vintage SUT with 3 inputs, various loads for MC, and PASS for MM.

Fidelity Research FRT-4

Entre 100 has 3 inputs and PASS

JVC TT81 spinner

http://www.thevintageknob.org/jvc-TT-81.html

 

If space is an issue, or equipment preference, some Tonearms allow very easy arm changes. 

 

Technics B500 arm base, VTA on the Fly easily changes from straight fixed cartridge arm to S removable arm in seconds, here's one on a VPI

 

the same base with the curved removable headshell arm, changes in seconds

 

 

Had I known about this Luxman PD444 dual arm table, I might have gone for it

 

 

thorens td124 in 2 arm plinth (get your own reconditioned td124

 

others

https://www.google.com/search?q=turntable+two+tonearms&rlz=1C1CHBF_enUS949US949&sxsrf=ALiCzsZBhhOuwmzxu9FHjObi0z8iCNR0Yg:1651932363508&source=univ&tbm=shop&tbo=u&sa=X&sqi=2&ved=2ahUKEwjy5-DNx833AhWFPM0KHYFQCSwQ1TV6BQgBEMwB&biw=1280&bih=609&dpr=1.5#spd=2487841389891408829

if you have vibration free floor, the td124 is a terrific tt, heavy platter yeilds awesome bass, sadly it’s bearing is succeptible to vertical motion, my flimsy wood floors not stable enough.

+1 on the Kuzma Stabi R turntable.  It's built like a tank and can accommodate multiple tonearms. I had the wood plinth upgrade, which at the time could only handle one tonearm.  I have seen the later models (with wood plinth) that can handle multiple tonearms and probably would not have sold mine had it been able to do that. Thee Stabi R with the 4P (11") would be an endgame rig IMO.